Atomization device

Abstract

The utility model provides an atomization device which comprises an atomization assembly, a draught fan and a smoke cover body, the atomization assembly and the draught fan communicate with the smoke cover body, the smoke cover body is provided with a backflow prevention structure, the backflow prevention structure is arranged between an air outlet part of the draught fan and a smoke outlet part of the atomization assembly, the backflow prevention structure is arranged close to an inlet of the cover body, and the backflow prevention structure is arranged close to the inlet of the cover body. The device is used for reducing smoke backflow to the fan. According to the atomization device, the smoke cover body is arranged, so that smoke generated by the atomization assembly flows to the smoke outlet in the smoke cover body under the pushing action of airflow of the fan, and the situation that the smoke makes contact with other elements in the atomization device and corrodes the other elements is avoided; therefore, the smoke condensate is prevented from flowing back to the fan or the smoke is prevented from directly flowing back to the fan, the fan is prevented from being corroded by the smoke, and the service life of the fan and the atomization device is prolonged.

Description

Technical Field

[0001] This application relates to the technical field of everyday consumer goods, and in particular to an atomizing device. Background Technology

[0002] Atomizers typically have a mist-generating mechanism that converts liquid into smoke and diffuses it into the air. With rising living standards and a desire for a higher quality of life, people are placing aromatherapy atomizers in their spaces, especially confined spaces, to improve air quality and mask or reduce unpleasant odors. Atomizers are increasingly used as aromatherapy diffusers in environments such as living rooms, offices, and driver's cabs. To accelerate mist evaporation, atomizers usually have a fan that quickly blows the mist generated by the mist-generating mechanism towards the outlet. However, in existing atomizers, when the fan blows the mist out, some mist condenses on the inner wall of the outlet channel and flows back to the fan. Some mist even flows directly back to the fan and adheres to it. Since mist often contains corrosive components that can corrode the fan, or the condensed liquid can accumulate at the fan for extended periods, potentially causing short circuits or affecting fan operation and reducing its lifespan.

[0003] Therefore, it is necessary to improve existing atomizers to solve the above problems. Summary of the Invention

[0004] In view of this, this application provides an atomizing device that can effectively solve the above problems.

[0005] This application provides an atomizing device, including an atomizing component, a fan, and a smoke hood. The atomizing component and the fan are respectively connected to the smoke hood. The smoke hood is provided with an anti-backflow structure, which is located between the air outlet of the fan and the mist outlet of the atomizing component.

[0006] In one embodiment, the smoke hood includes a mist outlet, a hood inlet, a flow channel formed between the hood inlet and the mist outlet, and a smoke inlet communicating with the flow channel. The mist outlet of the atomizing component is connected to the smoke inlet, the air outlet of the fan is connected to the hood inlet, and the anti-backflow structure is disposed near the hood inlet.

[0007] In one embodiment, the anti-backflow structure includes an anti-backflow bottom wall located at the bottom of the flow channel, wherein the longitudinal height of the anti-backflow bottom wall near the inlet of the cover is greater than the longitudinal height of the end away from the inlet of the cover.

[0008] In one embodiment, the anti-backflow structure includes at least one diversion baffle, which is disposed within the flow channel and near the inlet of the hood, for changing the flow direction of the smoke.

[0009] In one embodiment, the mist outlet is located on the top wall of the smoke hood, the smoke inlet is located on the bottom wall of the smoke hood, and the hood inlet is located on the side wall of the smoke hood.

[0010] In one embodiment, the anti-backflow structure includes an anti-backflow baffle, which is disposed within the flow channel and located between the inlet of the cover and the mist outlet.

[0011] In one embodiment, the flow channel includes a straight cylindrical portion and a swirling portion connected to one end of the straight cylindrical portion and bent and swirling to one side. The straight cylindrical portion and the swirling portion are connected in communication. The anti-backflow structure is disposed in the swirling portion, and the shroud inlet is disposed at the end of the swirling portion away from the straight cylindrical portion.

[0012] In one embodiment, the smoke hood includes an upper hood and a lower hood connected together, the flow channel is formed between the upper hood and the lower hood, the mist outlet is located at the end of the upper hood away from the hood inlet, and the smoke inlet is located at the end of the lower hood away from the hood inlet; the anti-backflow structure includes an anti-backflow bottom wall, the anti-backflow bottom wall is located on the lower hood, and the anti-backflow bottom wall is provided corresponding to the swirling portion.

[0013] In one embodiment, a buffer section is formed at one end of the straight cylinder portion near the swirling portion, and / or, a communication port communicating with the atomizing component is provided at one end of the straight cylinder portion near the swirling portion, and the smoke inlet is located at the other end of the straight cylinder portion.

[0014] In one embodiment, the side wall of the lower cover away from the inlet of the cover forms an inclined guide wall, which is located between the mist outlet and the smoke inlet.

[0015] In one embodiment, the atomizing device includes a housing, the smoke hood and the fan are both assembled inside the housing, and the atomizing component is located at the bottom of the housing and communicates with the smoke inlet.

[0016] In one embodiment, the diversion baffle is spaced apart from the sidewall of the flow guiding channel, and / or the diversion baffle is intersected with the length direction of the flow guiding channel.

[0017] In summary, this application provides an atomizing device, including an atomizing component, a fan, and a smoke hood. The atomizing component and the fan are respectively connected to the smoke hood. The smoke hood is equipped with an anti-backflow structure between the fan outlet and the atomizing component's mist outlet to reduce the backflow of smoke generated by the atomizing component to the fan. By setting up a smoke hood, this application allows the smoke generated by the atomizing component to flow towards the mist outlet within the smoke hood under the airflow of the fan, preventing the smoke from contacting other components inside the atomizing device and causing corrosion. By providing an anti-backflow structure on the smoke hood to prevent smoke from flowing back to the fan, it effectively prevents smoke condensate from flowing back to the fan or smoke from directly flowing back to the fan, preventing smoke from corroding the fan and extending the service life of the fan and the atomizing device. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the atomizing device of this application.

[0019] Figure 2 for Figure 1 A three-dimensional sectional view of the atomizing device.

[0020] Figure 3 for Figure 1 An exploded view of the atomizing device at one angle.

[0021] Figure 4 for Figure 1 A schematic diagram of the atomizing device from another angle.

[0022] Figure 5 for Figure 1 A three-dimensional schematic diagram of the smoke hood of the atomizing device.

[0023] Figure 6 for Figure 5 An exploded view of the smoke hood at one angle.

[0024] Figure 7 for Figure 5 A exploded view of the smoke hood from another angle. Detailed Implementation

[0025] Before describing the embodiments in detail, it should be understood that this application is not limited to the detailed structures or element arrangements described below or in the accompanying drawings. This application can be implemented in other ways. Furthermore, it should be understood that the wording and terminology used herein are for descriptive purposes only and should not be construed as limiting. The terms "comprising," "including," "having," and similar expressions used herein mean to include the items listed thereafter, their equivalents, and other additional items. In particular, when describing "an element," this application does not limit the number of elements to one, but may include multiple elements.

[0026] Please also refer to Figures 1 to 7 As shown, this application provides an atomizing device 10, which can be used in environments such as homes, offices, and driving. In this embodiment, the atomizing device 10 is cylindrical in shape; in other embodiments, the atomizing device 10 can also be designed in other shapes. The atomizing device 10 includes an atomizing component, a fan 16, and a smoke hood 14. The atomizing component and the fan 16 are respectively connected to the smoke hood 14. The smoke hood 14 includes a hood inlet 18 and is provided with an anti-backflow structure. The anti-backflow structure is located between the mist outlet of the atomizing component and the air outlet of the fan 16 to reduce the backflow of smoke generated by the atomizing component to the fan 16. The atomizing component is used to deliver smoke to the smoke hood 14, and the fan 16 is used to guide the smoke inside the smoke hood 14 to the mist outlet 12. It should be noted that the atomizing component and the fan 16 being respectively connected to the smoke hood 14 means that the smoke generated by the atomizing component and the smoke generated by the fan 16 can be delivered into the smoke hood 14. This application, by setting up a smoke hood 14, allows the smoke generated by the atomizing component to flow into the mist outlet 12 under the airflow of the fan 16, thus preventing the smoke from contacting other components in the atomizing device 10 and causing corrosion. By setting an anti-backflow structure on the smoke hood 14 to prevent the smoke from flowing back to the fan 16, the application aims to prevent the smoke condensate from flowing back to the fan 16 or the smoke from flowing directly back to the fan 16, thereby preventing the smoke from corroding the fan 16 and extending the service life of the fan 16 and the atomizing device 10.

[0027] Specifically, the smoke hood 14 includes a mist outlet 12, a hood inlet 18, a guide channel 20 formed between the hood inlet 18 and the mist outlet 12, and a smoke inlet 22 communicating with the guide channel 20. The hood inlet 18 and the mist outlet 12 are located at opposite ends of the smoke hood 14, with the guide channel 20 extending horizontally. The smoke inlet 22 is located at the bottom of the smoke hood 14, near the mist outlet 12. An atomizing component generates smoke and communicates with the smoke inlet 22, allowing the smoke generated by the atomizing component to enter the guide channel 20 through the smoke inlet 22. The air outlet of the fan 16 is connected to the hood inlet 18, allowing the air generated by the fan 16 to enter the guide channel 20 from the hood inlet 18 and push the smoke out from the mist outlet 12. An anti-backflow structure is located near the hood inlet 18 to prevent smoke from flowing back to the fan 16. In the illustrated embodiment, the atomizing device 10 is placed vertically so that the mist outlet 12 faces upwards, and the mist outlet 12 is, for example, an arc-shaped flat opening. Preferably, the mist outlet 12 is located on the top wall of the smoke hood 14, and the smoke inlet 22 is located on the bottom wall of the smoke hood 14, so that the mist outlet 12 is located above the smoke inlet 22, and the hood inlet 18 is located on the side wall of the smoke hood 14. In this case, the fan 16 and the smoke hood 14 are arranged side by side in the horizontal direction to solve the problem of component stacking in space, and it is also a better blowing method, so that the guide channel 20 extends in the horizontal direction.

[0028] Specifically, the anti-backflow structure includes an anti-backflow bottom wall 24, which is located near the inlet 18 of the hood. In the vertical direction, the longitudinal height of the anti-backflow bottom wall 24 near the inlet 18 is greater than the longitudinal height of the end away from the inlet 18. For example, the anti-backflow bottom wall 24 is a sloping wall with a certain slope, so that the backflowing smoke will preferentially contact the anti-backflow bottom wall 24 to block the smoke and reduce the backflow of smoke to the fan 16. The smoke condensate formed can flow downward along the anti-backflow bottom wall 24 towards the end away from the fan 16. The smoke condensate formed on the inner wall of the smoke hood 14 near the inlet 18 (some of the smoke flowing in the direction of flow accumulates on the inner wall of the smoke hood 14 to form smoke condensate) can flow to the anti-backflow bottom wall 24 first under its own gravity, and then flow downward along the anti-backflow bottom wall 24 towards the end away from the fan 16, thereby achieving the anti-backflow effect. The flow direction refers to the direction from the hood inlet 18 to the mist outlet 12. In the illustrated embodiment, the hood inlet 18 is located in the middle part of the end side wall of the smoke hood 14, that is, there is a certain gap between the bottom of the hood inlet 18 and the anti-backflow bottom wall 24, so as to raise the hood inlet 18 and prevent the smoke condensate from flowing to the fan 16.

[0029] Optionally, the smoke hood 14 includes a guide top wall 26 opposite to the anti-backflow bottom wall 24. The guide top wall 26 is used to guide the air entering the hood inlet 18 out of the mist outlet 12. In the vertical direction, the longitudinal height of the guide top wall 26 near the hood inlet 18 is greater than the longitudinal height of the end away from the hood inlet 18. For example, the guide top wall 26 is a sloping wall with a certain slope. This setting can correspond to the structure of the anti-backflow bottom wall 24.

[0030] Preferably, the flow channel 20 includes a straight cylindrical portion 28 and a swirling portion 30 connected to one end of the straight cylindrical portion 28 and bent and swirling to one side. The swirling portion 30 is, for example, laterally bent into an arc shape. The straight cylindrical portion 28 is connected to the swirling portion 30. An anti-backflow structure is provided in the swirling portion 30. For example, the bottom wall of the swirling portion 30 forms an anti-backflow bottom wall 24, and the top wall of the swirling portion 30 forms a flow-guiding top wall 26. In this embodiment, the shape of the smoke hood 14 is designed to match the shape of the flow channel 20. The bottom wall of the swirling portion 30 is the bottom wall of the smoke hood 14 corresponding to the swirling portion 30, and the top wall of the swirling portion 30 is the top wall of the smoke hood 14 corresponding to the swirling portion 30. The bottom wall and top wall of the smoke hood 14 corresponding to the straight section 28 form a straight bottom wall and a straight top wall, respectively. The smoke inlet 22 is set on the straight bottom wall and the mist outlet 12 is set on the straight top wall. The straight bottom wall and the anti-backflow bottom wall 24 together constitute the bottom wall of the smoke hood 14 or the guide channel 20, and the straight top wall and the guide top wall 26 together constitute the top wall of the smoke hood 14 or the guide channel 20.

[0031] The hood inlet 18 is located at the end of the swirling section 30 away from the straight section 28, meaning one end of the swirling section 30 communicates with the straight section 28, and the hood inlet 18 is located at the other end of the swirling section 30. The mist outlet 12 and the smoke inlet 22 are both located in the straight section 28. The mist outlet 12 is located at the top of the straight section 28 away from the swirling section 30, and the smoke inlet 22 is located at the bottom of the straight section 28 near the mist outlet 12. Optionally, the inflow direction of the hood inlet 18 is opposite to the outflow direction of the swirling section 30. Understandably, the fan 16 is connected to the hood inlet 18. Smoke enters the guide channel 20 from the smoke inlet 22. The air blown out by the fan 16 enters the guide channel 20 from the hood inlet 18, dispersing the smoke in the guide channel 20 from the mist outlet 12. When the two ends of the swirling part 30 extend in parallel directions, for example, the end near the hood inlet 18 is parallel to the straight part 28, the smoke needs to make multiple turns at the fan 16 before reaching the fan 16, which better prevents backflow.

[0032] From another perspective, the smoke hood 14 includes an upper hood 32 and a lower hood 34 connected vertically, with a flow channel 20 formed between the upper hood 32 and the lower hood 34. Preferably, the upper hood 32 and the lower hood 34 are detachably connected, for example, by a snap-fit ​​connection. Optionally, one end of the upper hood 32 connected to the lower hood 34 has a protrusion 36, and the other end of the lower hood 34 connected to the upper hood 32 has a recess 38. During assembly, the protrusion 36 engages with the recess 38, achieving detachable fixation of the upper hood 32 and the lower hood 34 while enhancing the airtightness of the flow channel 20 and preventing smoke leakage. In other embodiments, the positions of the protrusion 36 and the recess 38 can be interchanged; that is, the protrusion 36 is located on the lower hood 34, and the recess 38 is located on the upper hood 32; or the upper hood 32 and the lower hood 34 can also be detachably assembled using other detachable structures.

[0033] The hood inlet 18 is formed by the common opening of the end walls of the upper hood 32 and the lower hood 34. The mist outlet 12 is located on the upper hood 32 at the end away from the hood inlet 18, and the smoke inlet 22 is located at the bottom of the lower hood 34 at the end away from the hood inlet 18. The anti-backflow bottom wall 24 is formed on the bottom wall of the lower hood 34 corresponding to the swirling portion 30, and the guide top wall 26 is formed on the top wall of the upper hood 32 corresponding to the swirling portion 30. Both the anti-backflow bottom wall 24 and the guide top wall 26 are curved, swirling, and extended arc-shaped inclined wall structures. Preferably, the side of the anti-backflow bottom wall 24 and the guide top wall 26 facing away from the guide channel 20 is set as a hollow structure to reduce the counterweight.

[0034] In the illustrated embodiment, a buffer section 42 is formed at one end of the straight cylinder 28 near the swirling section 30 to reduce the backflow of air flowing out of the swirling section 30 into the guide channel 20, thereby enhancing the smoothness of airflow within the guide channel 20. Furthermore, the straight cylinder 28 near the swirling section 30 is provided with a connecting port 40 communicating with the atomizing component. For example, the bottom of the buffer section 42 is provided with a connecting port 40 communicating with the atomizing component. The smoke inlet 22 is located at the other end of the straight cylinder 28, and the connecting port 40 is located at the end of the straight cylinder 28 opposite to the smoke inlet 22. For example, the connecting port 40 is located on the bottom wall of the lower cover 34 at the connection between the straight cylinder 28 and the swirling section 30, so that the smoke condensate flowing back down from the bottom wall 24 can directly flow into the atomizing component through the connecting port 40 for recycling and reuse, thereby improving the atomization efficiency of the atomizing device 10. The smoke inlet 22 and the connecting port 40 are located at both ends of the buffer section 42. When the atomizing device 10 is used in a vehicle scenario, the vehicle will cause the atomizing device 10 to sway and tilt from side to side during driving. For example, when it tilts to the left, the liquid accumulated in the buffer section 42 will flow into the smoke inlet 22 for recycling and reuse. When it tilts to the right, the liquid accumulated in the buffer section 42 will flow into the connecting port 40 and enter the atomizing component for recycling and reuse.

[0035] Furthermore, the side wall of the lower cover 34 away from the cover inlet 18 forms an inclined guide wall 44. The guide wall 44 is inclined upward along the guide direction, for example. The guide wall 44 is located between the mist outlet 12 and the smoke inlet 22, and is used to guide the smoke flowing out of the smoke inlet 22 to the mist outlet 12 under the airflow of the fan 16, thereby enhancing the atomization efficiency.

[0036] Preferably, the anti-backflow structure includes at least one diverting baffle 46, which is disposed within the guide channel 20 and near the hood inlet 18. The diverting baffle 46 is used to change the flow direction of the smoke and block smoke backflow. For example, the diverting baffle 46 is intersected with the length direction of the guide channel 20 to change the flow direction of the smoke, thereby reducing smoke backflow and preventing smoke from flowing back to the fan 16. Simultaneously, the diverting baffle 46 can divert the air entering the hood inlet 18, improving the smoothness of airflow and thus improving the fogging efficiency. The diverting baffle 46 is, for example, a plate-like structure, with its upper end connected to the top guide wall 26 and its lower end connected to the anti-backflow bottom wall 24. The diverting baffle 46 is curved in an arc shape along the guide direction of the guide channel 20, and the curvature of the diverting baffle 46 is, for example, consistent with the curvature of the swirling portion 30. In this embodiment, two diversion baffles 46 are provided, and the two diversion baffles 46 are arranged at intervals along the width direction of the guide channel 20. In other embodiments, the diversion baffles 46 can also be provided in other quantities. Preferably, the diversion baffles 46 and the lower cover 34 are integrally formed. Correspondingly, the upper cover 32 is provided with a slot 48 at the bottom of the corresponding rotating part 30. During installation, the top of the diversion baffle 46 is fitted into the corresponding slot 48, which can achieve a positioning effect. It should be noted that this application does not limit the shape of the diversion baffles 46. In other embodiments, the diversion baffles 46 can also be set as straight plates, and the diversion baffles 46 can also be connected only to the anti-backflow bottom wall 24 or the guide top wall 26. The sidewalls of the diversion baffle 46 and the guide channel 20 are spaced apart to form an air outlet path, so that the air outlet of the fan 16 can pass through the gap between the sidewalls of the diversion baffle 46 and the guide channel 20, and flow along the diversion baffle 46 from the diversion baffle 46 to the mist outlet of the atomizing component, blowing the smoke out of the mist outlet 12.

[0037] Furthermore, the anti-backflow structure also includes an anti-backflow baffle 50, which is disposed within the guide channel 20 and located between the hood inlet 18 and the mist outlet 12, for example, between the connecting port 40 and the diverting baffle 46. The anti-backflow baffle 50 can be used to block the backflow of smoke, preventing the smoke from flowing back to the fan 16, and also has a certain limiting function, for example, the anti-backflow baffle 50 abuts against the diverting baffle 46 to achieve a limiting effect. In the illustrated embodiment, the guide top wall 26 extends toward the anti-backflow bottom wall 24 to form the anti-backflow baffle 50.

[0038] In the illustrated embodiment, the atomizing device 10 includes a housing 52, a circuit board 54, and a power supply 56. The atomizing components, the fan 16, and the power supply 56 are electrically connected to the circuit board 54. The smoke hood 14, the fan 16, the circuit board 54, and the power supply 56 are all assembled inside the housing 52. The housing 52 includes a side frame 58, a top cover 60 connected to the top of the side frame 58, and a base 62 connected to the bottom of the side frame 58. The top cover 60 and the base 62 are, for example, snap-fitted to the side frame 58. The smoke hood 14 is located in the middle position inside the housing 52. For example, the lower hood 34 is fixed to the base 62 with screws. The housing 52 has fixed mounting positions corresponding to the fan 16 and the power supply 56, respectively, and the fan 16 and the power supply 56 are respectively installed and fixed in their corresponding fixed mounting positions. Preferably, the upper cover 32 abuts against the top cover 60, and the lower cover 34 abuts against the base 62. The mist outlet 12 passes through the top cover 60 and communicates with the outside. The outer edge of the base 62 is provided with an air inlet 64 communicating with the fan 16 along its circumferential direction. The circuit board 54 is arranged around the periphery of the lower cover 34. The circuit board 54 is connected and fixed to the base 62, for example. The side frame 58 is provided with a charging interface 66 that is electrically connected to the circuit board 54. The charging interface 66 is used to connect to an external power source to charge the power supply 56 and to supply power to the atomizing device 10. The top cover 60 is provided with a button 68 that is electrically connected to the circuit board 54 and is used to control the start / stop of the atomizing device 10 and the smoke adjustment, etc.

[0039] Furthermore, the atomizing assembly includes a bottle body 70, a liquid guide 72, and an atomizing element 74. The atomizing element 74 is, for example, an atomizing plate, which is electrically connected to the circuit board 54. The bottle body 70 is used to hold the atomizing liquid, and the bottle mouth of the bottle body 70 is connected to the bottom of the outer shell 52. The atomizing element 74 is located at the smoke inlet 22. One end of the liquid guide 72 extends into the bottle body 70, and the other end is connected to the atomizing element 74. The liquid guide 72 is used to conduct the atomizing liquid in the bottle body 70 to the atomizing element 74 for atomization. The smoke formed by atomization enters the smoke hood 14 through the smoke inlet 22.

[0040] More specifically, the bottom of the base 62 has a mounting portion 76 protruding outward into the bottle body 70 and a protrusion 78 protruding inward into the outer casing 52. The protrusion 78 is connected to the periphery of the mounting portion 76, and a connection port 80 is formed at the bottom of the protrusion 78. The circuit board 54 is supported on the protrusion 78. For example, the inner wall of the connection port 80 has internal threads, and the bottle mouth of the bottle body 70 has external threads, so that the bottle body 70 can be threadedly connected to the base 62. The side wall of the protrusion 78 is inclined, and the air inlet 64 is set on the inclined side wall to communicate with the outside. A placement space is formed between the top side of the mounting portion 76 and the protrusion 78, and the bottom of the lower cover 34 is placed in the placement space. A vertically penetrating conduit 81 is provided in the mounting portion 76 corresponding to the smoke inlet 22. The liquid guide 72 is housed in the conduit 81, and the atomizing element 74 is disposed between the liquid guide 72 and the smoke inlet 22. An accommodating portion 82 is formed within the mounting portion 76, located around the conduit 81. The accommodating portion 82 is, for example, a cavity, and contains a liquid storage element 84. The liquid storage element 84 is, for example, made of cotton material for absorbing liquid. The accommodating portion 82 communicates with both the space inside the bottle 70 and the space where the liquid guide element 72 is located. In this embodiment, the conduit 81 has several through holes, allowing its internal space to communicate with the accommodating portion 82. The liquid guide element 72 can absorb the atomized liquid stored in the liquid storage element 84 through these through holes. The bottom wall of the mounting portion 76 also has multiple through holes, allowing the accommodating portion 82 to communicate with the internal space of the bottle 70. The liquid storage element 84 can absorb the atomized liquid inside the bottle 70 through these through holes. Therefore, the liquid guide element 72 can directly absorb not only the atomized liquid inside the bottle 70 but also the atomized liquid stored in the liquid storage element 84. The connecting port 40 communicates with the accommodating portion 82, allowing the returned condensate to flow directly into the accommodating portion 82 for recycling.

[0041] In summary, this application provides an atomizing device, including an atomizing component, a fan, and a smoke hood. The atomizing component and the fan are respectively connected to the smoke hood. The smoke hood includes an inlet and is equipped with an anti-backflow structure, which is located near the inlet to reduce smoke backflow to the fan. By providing a smoke hood, this application ensures that the smoke generated by the atomizing component flows towards the outlet within the smoke hood under the airflow of the fan, preventing the smoke from contacting and corroding other components within the atomizing device. The anti-backflow structure on the smoke hood prevents smoke from flowing back to the fan, thus preventing smoke condensate from flowing back to the fan or smoke from directly flowing back to the fan, preventing smoke corrosion of the fan, and extending the service life of the fan and the atomizing device.

[0042] The concepts described herein may be implemented in other forms without departing from their spirit and characteristics. The specific embodiments disclosed should be considered illustrative rather than restrictive. Therefore, the scope of this application is determined by the appended claims, and not by the preceding description. Any changes within the literal meaning and equivalent scope of the claims should fall within the scope of those claims.

Claims

1. An atomizing device, characterized in that, The device includes an atomizing component, a fan, and a smoke hood. The atomizing component and the fan are respectively connected to the smoke hood. The smoke hood is provided with an anti-backflow structure, which is located between the air outlet of the fan and the mist outlet of the atomizing component. The smoke hood includes a mist outlet, a hood inlet, a guide channel formed between the hood inlet and the mist outlet, and a smoke inlet connected to the guide channel. The mist outlet of the atomizing component is connected to the smoke inlet, and the air outlet of the fan is connected to the hood inlet. The anti-backflow structure is located close to the hood inlet. The anti-backflow structure includes an anti-backflow bottom wall, which is located at the bottom of the guide channel. The longitudinal height of the anti-backflow bottom wall near the hood inlet is greater than the longitudinal height away from the hood inlet.

2. The atomizing device as described in claim 1, characterized in that, The backflow prevention structure includes at least one diversion baffle, which is located in the flow channel and near the inlet of the cover.

3. The atomizing device as described in claim 1, characterized in that, The mist outlet is located on the top wall of the smoke hood, the smoke inlet is located on the bottom wall of the smoke hood, and the hood inlet is located on the side wall of the smoke hood.

4. The atomizing device as described in claim 1, characterized in that, The anti-backflow structure includes an anti-backflow baffle, which is disposed in the flow channel and located between the inlet of the cover and the mist outlet.

5. The atomizing device as described in claim 1, characterized in that, The flow channel includes a straight cylindrical section and a swirling section connected to one end of the straight cylindrical section and bent and swirling to one side. The straight cylindrical section and the swirling section are connected. The anti-backflow structure is provided in the swirling section. The hood inlet is located at the end of the swirling section away from the straight cylindrical section.

6. The atomizing device as described in claim 5, characterized in that, The smoke hood includes an upper hood and a lower hood connected together. The flow channel is formed between the upper hood and the lower hood. The mist outlet is located at the end of the upper hood away from the hood inlet, and the smoke inlet is located at the end of the lower hood away from the hood inlet. The anti-backflow structure includes an anti-backflow bottom wall, which is located on the lower hood and is provided corresponding to the swirling portion.

7. The atomizing device as described in claim 5, characterized in that, The straight section near the swirling section has a buffer section, and / or the straight section near the swirling section has a communication port that communicates with the atomizing component, and the smoke inlet is located at the other end of the straight section.

8. The atomizing device as described in claim 6, characterized in that, The side wall of the lower cover away from the inlet of the cover forms an inclined guide wall, which is located between the mist outlet and the smoke inlet.

9. The atomizing device according to any one of claims 1-8, characterized in that, The atomizing device includes a housing, the smoke hood and the fan are both assembled inside the housing, and the atomizing component is located at the bottom of the housing and communicates with the smoke inlet.

10. The atomizing device as described in claim 2, characterized in that, The diversion baffle is spaced apart from the side wall of the flow guiding channel, and / or the diversion baffle is intersected with the length direction of the flow guiding channel.

Images