Airflow generating device and breathing machine

Abstract

The utility model relates to an airflow generating device and a breathing machine, the breathing machine comprises the airflow generating device, the airflow generating device comprises a shell and a fan, the shell is internally provided with an inlet cavity, a fan cavity and an outlet cavity which are sequentially communicated in the airflow flowing direction, and the fan is arranged in the fan cavity; the shell is further internally provided with a resonant cavity, the resonant cavity is adjacent to the outlet cavity and the fan cavity and is isolated from the fan cavity, and the cavity wall of the resonant cavity is provided with a plurality of noise reduction holes communicating with the outlet cavity. Noise generated by the fan and noise generated by disordered airflow in the outlet cavity can be transmitted into the resonant cavity through the noise reduction holes, and then the noise is continuously rebounded by the cavity wall of the resonant cavity in the resonant cavity and then is gradually consumed, so that a good noise reduction effect can be achieved without installing noise reduction cotton or sound insulation cotton, the cost can be saved, and the noise reduction efficiency is improved. The assembly process is simplified, fine particles are not generated to harm the body health of a user, and then the use experience of the breathing machine is improved.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to an airflow generating device and a ventilator. Background Technology

[0002] A ventilator is a device that can replace, control, or alter a person's normal physiological breathing, increasing lung ventilation to improve respiratory function. Specifically, when a ventilator is working normally, the fan blades in the airflow generator rotate under the drive of a motor to continuously generate airflow for breathing, which is delivered to the user through a humidifier, breathing tubing, and nasal mask.

[0003] In existing technologies, ventilators mainly achieve noise reduction by installing sound-absorbing cotton in the internal air duct, or by using simple sound-insulating cotton for sound insulation, sound absorption, and vibration damping. However, the above noise reduction methods are not only ineffective and fail to achieve the desired noise reduction effect, resulting in excessive noise during ventilator use, which seriously affects the sleep quality of patients and their families, leading to a poor user experience, but also complicates the assembly process. In addition, after prolonged use, the sound-insulating or sound-absorbing cotton will age and produce many fine particles, which are carried into the user's lungs by the airflow, seriously endangering the user's health. Utility Model Content

[0004] Therefore, it is necessary to provide an airflow generating device and ventilator that can solve the problems of existing ventilators that achieve noise reduction by installing sound-absorbing cotton in the internal air duct or using simple sound-absorbing cotton, resulting in poor noise reduction effect, complicated assembly process or harm to the user's health.

[0005] According to one aspect of this application, an airflow generating device is provided, comprising:

[0006] The housing includes an inlet chamber, a fan chamber, and an outlet chamber that are sequentially connected along an airflow direction. The housing has an air inlet and an air outlet. The air inlet is located on the housing corresponding to and connected to the inlet chamber, and the air outlet is located on the housing corresponding to and connected to the outlet chamber. The housing also includes a resonant chamber, which is adjacent to and isolated from both the outlet chamber and the fan chamber. The resonant chamber has several noise-reducing holes on its wall that connect to the outlet chamber.

[0007] A fan is disposed in the fan chamber. The fan is used to accelerate the flow of air to generate airflow, and to allow the airflow to enter the inlet chamber from the air inlet, and then sequentially pass through the fan chamber and the outlet chamber along the airflow direction before being discharged from the air outlet.

[0008] In one embodiment, the housing includes an upper housing and a lower housing, the upper housing being detachably fitted onto the lower housing; the outlet chamber includes an upper outlet chamber formed in the upper housing and a lower outlet chamber formed in the lower housing, the upper outlet chamber and the lower outlet chamber having the same outline and being aligned; the resonant chamber is formed in the upper housing, and the fan chamber is formed in the lower housing, the resonant chamber and the fan chamber also having the same outline and being aligned.

[0009] In one embodiment, the lower housing is provided with multiple lower partitions, and at least a portion of the inlet chamber, the fan chamber, and the lower outlet chamber are separated by the multiple lower partitions; the upper housing is provided with at least one upper partition, and the resonant chamber and the upper outlet chamber are separated by the upper partition, and the noise reduction hole passes through the upper partition located between the resonant chamber and the upper outlet chamber.

[0010] In one embodiment, the lower partition located between the fan chamber and the outlet chamber is defined as a first lower partition, and the first lower partition has a plurality of return holes penetrating its opposite sides.

[0011] In one embodiment, the first lower partition has a fan mounting port extending through its opposite sides. The fan has an air outlet pipe with an air outlet, and the air outlet pipe is inserted into the fan mounting port. The air outlet faces the oral cavity.

[0012] In one embodiment, the lower partition located between the inlet chamber and the fan chamber is defined as a second lower partition. The second lower partition has vents extending through its opposite sides, and the inlet chamber and the fan chamber are interconnected through the vents.

[0013] In one embodiment, a seal is provided between the upper housing and the lower housing, the seal sealing the gap between the upper housing and the lower housing and isolating the resonant chamber from the fan chamber.

[0014] In one embodiment, the inlet chamber is provided with a wind resistance component, which has an airflow channel extending through its opposite ends. The airflow channel is provided with multiple ribs, which divide the airflow channel into multiple airflow sub-channels.

[0015] In one embodiment, the inlet chamber is provided with a partition plate, which divides the inlet chamber into a first inlet chamber and a second inlet chamber. In the airflow direction, the second inlet chamber is located between the first inlet chamber and the fan chamber. The air inlet is opened on the side wall of the housing corresponding to the first inlet chamber. The wind resistance element passes through the partition plate.

[0016] According to another aspect of this application, a ventilator is provided, comprising the airflow generating device described in any of the above embodiments.

[0017] The aforementioned airflow generating device and ventilator, by setting a resonant chamber adjacent to both the outlet chamber and the fan chamber within the housing, isolates the resonant chamber from the fan chamber, and opens several noise-reducing holes in the wall of the resonant chamber to connect with the outlet chamber, allows the noise generated by the fan and the noise generated by turbulent airflow in the outlet chamber to be transmitted to the resonant chamber through the noise-reducing holes. Then, the noise is gradually consumed by the continuous bounce of the resonant chamber wall. Therefore, good noise reduction effect can be achieved without installing sound-absorbing cotton or simple sound insulation cotton, thereby saving costs, simplifying the assembly process, and preventing the generation of fine particles that may harm the user's health, thus improving the user's experience of using the ventilator. Attached Figure Description

[0018] Figure 1 This is an explosion diagram of an airflow generating device provided in an embodiment of this application.

[0019] Figure 2 This is a schematic diagram of the internal structure of an airflow generating device provided in an embodiment of this application.

[0020] Figure 3 This is a schematic diagram of the internal structure of an airflow generating device provided in an embodiment of this application (the fan is hidden).

[0021] Figure 4 This is a schematic diagram of the upper housing structure of an airflow generating device provided in an embodiment of this application.

[0022] Figure 5 A schematic diagram of the internal structure of an airflow generating device provided in another embodiment of this application (the fan is hidden).

[0023] Figure 6 A cross-sectional view of the internal structure of an airflow generating device provided in another embodiment of this application.

[0024] Figure 7 for Figure 6 An enlarged schematic diagram of region A in the middle.

[0025] Explanation of reference numerals in the attached figures:

[0026] 10. Airflow generating device; 100. Housing; 101. Inlet chamber; 1011. Upper inlet chamber; 1012. Lower inlet chamber; 1012a. First inlet chamber; 1012b. Second inlet chamber; 102. Fan chamber; 103. Outlet chamber; 1031. Upper outlet chamber; 1032. Lower outlet chamber; 104. Air inlet; 105. Air outlet; 106. Resonance chamber; 107. Noise reduction hole; 108. Lower partition; 1081. First lower partition; 1082. Second lower partition; 109. Upper partition; 1010. Divider plate; 1020. Fan mounting port; 1030. Vent; 1040. Return hole; 110. Upper housing; 120. Lower housing; 200. Fan; 201. Air outlet duct; 202. Air outlet; 300. Sealing element; 400. Wind resistance element. Detailed Implementation

[0027] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0028] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0029] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0030] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0031] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0032] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0033] One embodiment of this application provides an airflow generating device and a ventilator including the airflow generating device. The ventilator is used to continuously provide oxygen to the user by means of the airflow generating device at a set pressure, thereby improving the hypoxia problem of the patient during sleep.

[0034] This embodiment is only used as an example and does not limit the technical scope of this application. It is understood that in other embodiments, the airflow generating device of this application is not limited to use only in ventilators, but can also be used in any device that needs to generate airflow, and is not limited here.

[0035] One embodiment of this application provides a ventilator including a main unit and a water tank. The main unit has an airflow generating device and a heating device. The heating device is used to heat the water in the water tank to generate water vapor. The airflow generating device is used to generate airflow so that the airflow can flow into the water tank and mix with the water vapor generated in the water tank, so that the air is humidified and inhaled by the user, thereby making the air inhaled by the user warm and humid.

[0036] See Figures 1 to 3 , Figure 1 An explosion diagram of the airflow generating device 10 is shown. Figure 2 A schematic diagram of the internal structure of the airflow generating device 10 is shown. In embodiments of this application, the airflow generating device 10 includes a housing 100 and a fan 200, wherein, as... Figure 2 and Figure 3 As shown, the housing 100 has a flow direction along an airflow direction ( Figure 3 The inlet chamber 101, the fan chamber 102, and the outlet chamber 103 are sequentially connected (in the direction indicated by the dashed arrow). The housing 100 has an air inlet 104 and an air outlet 105. The air inlet 104 is located on the housing 100 corresponding to and connected to the inlet chamber 101, and the air outlet 105 is located on the housing 100 corresponding to and connected to the outlet chamber 103. A fan 200 is disposed within the fan chamber 102 and is used to accelerate airflow to generate airflow. This airflow enters the inlet chamber 101 through the air inlet 104 and then sequentially passes through the fan chamber 102 and the outlet chamber 103 before exiting through the air outlet 105.

[0037] However, since the fan 200 generates significant vibration noise during operation of the airflow generating device 10, especially in the outlet chamber 103, in addition to the vibration noise generated by the fan 200 propagating from the fan chamber 102 to the outlet chamber 103, the outlet chamber 103 also experiences airflow noise from turbulent airflow. Therefore, preferably, as Figure 4 As shown, a resonant chamber 106 is also provided in the housing 100 of the fan 200. The resonant chamber 106 is arranged adjacent to the outlet chamber 103 and the fan chamber 102, and is isolated from the fan chamber 102. At the same time, the cavity wall of the resonant chamber 106 is provided with several noise reduction holes 107 that connect to the outlet chamber 103.

[0038] In this way, the noise generated by the fan 200 and the noise generated by the turbulent airflow in the outlet chamber 103 can be transmitted to the resonant chamber 106 through the noise reduction hole 107. Then, the noise is gradually consumed after being continuously bounced by the cavity wall of the resonant chamber 106, thus achieving the purpose of noise reduction.

[0039] For details, please continue reading Figure 1 In some embodiments, the housing 100 includes an upper housing 110 and a lower housing 120, with the upper housing 110 detachably covering the lower housing 120; the outlet chamber 103 includes an upper outlet chamber 1031 formed in the upper housing 110 and a lower outlet chamber 1032 formed in the lower housing 120, with the upper outlet chamber 1031 and the lower outlet chamber 1032 having the same outline and being aligned; the resonant chamber 106 is formed in the upper housing 110, and the fan chamber 102 is formed in the lower housing 120, with the resonant chamber 106 and the fan chamber 102 also having the same outline and being aligned. Optionally, the inlet chamber 101 also includes an upper inlet chamber 1011 formed in the upper housing 110 and a lower inlet chamber 1012 formed in the lower housing 120, with the lower inlet chamber 1012 having the same outline and being aligned.

[0040] More specifically, such as Figure 3 As shown, the lower housing 120 is provided with multiple lower partitions 108, and the lower inlet chamber 1012, the fan chamber 102 and the lower outlet chamber 1032 are separated by multiple lower partitions 108; the upper housing 110 is also provided with multiple upper partitions 109, and the upper inlet chamber 1011, the resonant chamber 106 and the upper outlet chamber 1031 are separated by multiple upper partitions 109, and the noise reduction hole 107 passes through the upper partition 109 located between the resonant chamber 106 and the upper outlet chamber 1031.

[0041] The lower partition 108 located between the fan chamber 102 and the outlet chamber 103 is defined as the first lower partition 1081. The first lower partition 1081 has fan mounting openings 1020 that penetrate both sides of its thickness direction. Figure 1 As shown, the fan 200 has an air outlet 201 with an air outlet 202, and the air outlet 201 is inserted into the fan mounting port 1020, with the air outlet 202 facing the lower outlet chamber 1032. A lower partition 108 located between the inlet chamber 101 and the fan chamber 102 is defined as a second lower partition 1082. The second lower partition 1082 has ventilation openings 1030 extending through opposite sides in its thickness direction. The inlet chamber 101 and the fan chamber 102 are interconnected through the ventilation openings 1030. When the fan 200 is turned on, the airflow in the inlet chamber 101 can flow through the ventilation openings 1030 into the fan chamber 102 and enter the fan 200. Then, the airflow enters the outlet chamber 103 from the air outlet 202 of the fan 200 and finally exits from the outlet 105 of the outlet chamber 103.

[0042] By setting multiple lower partitions 108 to divide the inner cavity of the lower housing 120 into a lower inlet chamber 1012, a fan chamber 102, and a lower outlet chamber 1032, it is beneficial to extend the airflow path, thereby reducing the airflow energy and thus reducing the noise generated by the airflow.

[0043] It is understood that in another embodiment, the inlet chamber 101 may also be entirely located in the lower housing 120, that is, the upper housing 110 may only have the resonant chamber 106 and the upper outlet chamber 1031, which is not limited here.

[0044] More preferably, a sealing element 300 is provided between the upper housing 110 and the lower housing 120. By providing the sealing element 300, each chamber formed by the upper housing 110 and the lower housing 120 can be sealed to prevent airflow from flowing out from the gap between the upper housing 110 and the lower housing 120, thereby affecting the user's inhalation effect.

[0045] Based on the above embodiments, as a further improvement, such as Figure 5 and Figure 6 As shown, a plurality of reflux holes 1040 are provided on the cavity wall (i.e., the first lower partition plate 1081) adjacent to the fan chamber 102 and the lower outlet chamber 1032. By providing the reflux holes 1040, such as... Figure 6 As shown, the pressure difference between the outlet chamber 103 and the fan chamber 102 can be used to allow part of the airflow in the outlet chamber 103 to flow back into the fan chamber 102, thereby reducing the aerodynamic noise generated by the turbulent airflow in the outlet chamber 103; and the vibration noise generated by the fan 200 can also be transmitted from the outlet chamber 103 to the fan chamber 102, and finally lost in the fan chamber 102.

[0046] It is understandable that the diameter and number of reflux orifices 1040 are not limited. Different orifice sizes and different numbers of reflux orifices 1040 can reduce noise in different frequency bands. They can be set as needed and are not limited here.

[0047] Preferably, based on the above embodiments, such as Figure 7 As shown, the diameter of the return hole 1040 gradually increases from the direction of the fan chamber 102 outward to the oral cavity 103, thereby achieving a better noise reduction effect. This is because when sound propagates through a hole of unequal diameter, if it propagates from the end with the smaller diameter to the end with the larger diameter, it is similar to a loudspeaker amplification, which has the effect of amplifying the sound; conversely, when the sound propagates from the end with the larger diameter to the end with the smaller diameter, it has the opposite effect, thus achieving better noise reduction.

[0048] Better, such as Figure 5 As shown, the first lower partition 1081 can also be detachably disposed in the housing 100, so that the first lower partition 1081 with different aperture sizes or different numbers of return holes 1040 can be easily replaced, thereby facilitating noise reduction for specific frequency bands.

[0049] Alternatively, such as Figure 2 and Figure 3 As shown, the lower inlet chamber 1012 is also provided with a wind resistance component 400. The wind resistance component 400 has an airflow channel that runs through its two opposite ends. The airflow channel is provided with multiple ribs, which divide the airflow channel into multiple sub-airflow channels.

[0050] In the embodiment shown in the figure, the wind resistance component 400 is cylindrical. Of course, the wind resistance component 400 can also be composed of multiple parallel flat plates, as long as multiple sub-airflow channels can be formed, and there is no limitation here.

[0051] By setting the wind resistance component 400, the multiple sub-airflow channels of the wind resistance component 400 can regulate the airflow in the inlet chamber 101, thereby reducing the aerodynamic noise generated by the turbulent airflow in the inlet chamber 101. In addition, setting the wind resistance component 400 can also create a pressure difference at both ends of the wind resistance component 400. The airflow rate can be determined by calculating the pressure difference at both ends of the wind resistance component 400, which facilitates the adjustment of the air volume of the fan 200.

[0052] In addition, a partition plate 1010 is provided in the lower inlet chamber 1012. The partition plate 1010 divides the inlet chamber 101 into a first inlet chamber 1012a and a second inlet chamber 1012b. In the airflow direction, the second inlet chamber 1012b is located between the first inlet chamber 1012a and the fan chamber 102. The air inlet 104 is opened on the side wall of the housing 100 corresponding to the first inlet chamber 1012a. The wind resistance element 400 passes through the partition plate 1010. For example, in the embodiment shown in the figure, the partition plate 1010 divides the lower inlet chamber 1012 into a first inlet chamber 1012a and a second inlet chamber 1012b. By setting the partition plate 1010 to divide the inlet chamber 101 into the first inlet chamber 1012a and the second inlet chamber 1012b, it is not only convenient to fix the wind resistance component 400, but also the vibration noise generated by the fan 200 can be reflected and consumed by the third partition plate when it is transmitted to the inlet chamber 101, which helps to minimize the noise transmitted to the air inlet 104.

[0053] Therefore, the airflow generating device 10 and the ventilator including the airflow generating device 10 provided in this application can achieve good noise reduction effect without installing sound-absorbing cotton or simple sound insulation cotton by opening a resonance chamber 106 in the housing 100 and opening a noise reduction hole 107 in the cavity wall of the resonance chamber 106. This can save costs, simplify the assembly process, and prevent the generation of fine particles that may harm the user's health, thereby improving the user's experience of using the ventilator. Based on this, by opening a return hole 1040 connecting the lower outlet chamber 1032 and the fan chamber 102 in the cavity wall between the lower outlet chamber 1032 and the fan chamber 102, most of the airflow blown by the fan 200 to the outlet chamber 103 will be discharged from the outlet 105 to the outside of the airflow generating device 10. A small portion of the airflow will flow back into the fan chamber 102 through the return hole 1040 under the pressure difference between the outlet chamber 103 and the fan chamber 102 and be absorbed by the fan 200. Therefore, the airflow in the outlet chamber 103 can be made smoother, reducing the aerodynamic noise generated by the turbulent airflow in the outlet chamber 103. Furthermore, the vibration noise transmitted from the fan 200 to the outlet chamber 103 can be transmitted from the outlet chamber 103 into the fan chamber 102 through the return hole 1040, achieving a better noise reduction effect after continuous attenuation.

[0054] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0055] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An airflow generating device, characterized in that, include: A housing (100) has an inlet chamber (101), a fan chamber (102), and an outlet chamber (103) sequentially connected along an airflow direction. The housing (100) has an air inlet (104) and an air outlet (105). The air inlet (104) is located on the housing (100) corresponding to and connected to the inlet chamber (101), and the air outlet (105) is located on the... The housing (100) corresponds to the position of the outlet chamber (103) and is connected to the outlet chamber (103); the housing (100) also has a resonance chamber (106), which is adjacent to the outlet chamber (103) and the fan chamber (102) and is isolated from the fan chamber (102). The cavity wall of the resonance chamber (106) is provided with a plurality of noise reduction holes (107) that are connected to the outlet chamber (103); A fan (200) is disposed in the fan chamber (102). The fan (200) is used to accelerate the flow of air to generate airflow, and to make the airflow enter the inlet chamber (101) from the inlet (104), and then exit from the outlet (105) in sequence along the airflow direction through the fan chamber (102) and the outlet chamber (103).

2. The airflow generating device according to claim 1, characterized in that, The housing (100) includes an upper housing (110) and a lower housing (120), the upper housing (110) being detachably fitted onto the lower housing (120); the outlet chamber (103) includes an upper outlet chamber (1031) opened in the upper housing (110) and a lower outlet chamber (1032) opened in the lower housing (120), the upper outlet chamber (1031) and the lower outlet chamber (1032) having the same outline and being aligned; the resonant chamber (106) is opened in the upper housing (110), the fan chamber (102) is opened in the lower housing (120), the resonant chamber (106) and the fan chamber (102) also having the same outline and being aligned.

3. The airflow generating device according to claim 2, characterized in that, The lower housing (120) is provided with multiple lower partitions (108), and at least a portion of the inlet chamber (101), the fan chamber (102), and the lower outlet chamber (1032) are separated by the multiple lower partitions (108); the upper housing (110) is provided with at least one upper partition (109), and the resonant chamber (106) and the upper outlet chamber (1031) are separated by the upper partition (109), and the noise reduction hole (107) passes through the upper partition (109) located between the resonant chamber (106) and the upper outlet chamber (1031).

4. The airflow generating device according to claim 3, characterized in that, The lower partition (108) located between the fan chamber (102) and the outlet chamber (103) is defined as the first lower partition (1081), and the first lower partition (1081) has a plurality of return holes (1040) penetrating its opposite sides.

5. The airflow generating device according to claim 4, characterized in that, The first lower partition (1081) has a fan mounting port (1020) that runs through its opposite sides. The fan (200) has an air outlet pipe (201) with an air outlet (202). The air outlet pipe (201) is inserted into the fan mounting port (1020), and the air outlet (202) faces the air outlet chamber (103).

6. The airflow generating device according to claim 3, characterized in that, The lower partition (108) located between the inlet chamber (101) and the fan chamber (102) is defined as the second lower partition (1082). The second lower partition (1082) has vents (1030) that pass through its opposite sides. The inlet chamber (101) and the fan chamber (102) are interconnected through the vents (1030).

7. The airflow generating device according to claim 2, characterized in that, A sealing element (300) is provided between the upper housing (110) and the lower housing (120). The sealing element (300) seals the gap between the upper housing (110) and the lower housing (120) and isolates the resonant chamber (106) from the fan chamber (102).

8. The airflow generating device according to claim 1, characterized in that, The inlet chamber (101) is provided with a wind resistance component (400), which has an airflow channel that runs through its two opposite ends. The airflow channel is provided with multiple ribs, which divide the airflow channel into multiple airflow sub-channels.

9. The airflow generating device according to claim 8, characterized in that, The inlet chamber (101) is provided with a partition plate (1010), which divides the inlet chamber (101) into a first inlet chamber (1012a) and a second inlet chamber (1012b). In the direction of airflow, the second inlet chamber (1012b) is located between the first inlet chamber (1012a) and the fan chamber (102). The air inlet (104) is opened on the side wall of the housing (100) corresponding to the first inlet chamber (1012a). The wind resistance element (400) passes through the partition plate (1010).

10. A ventilator, characterized in that, Includes the airflow generating device (10) as described in any one of claims 1-9.

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