Wind noise reduction structure and radio equipment
By using a wind-reducing structure with slow-flow protrusions and diversion convex strips in the radio equipment, the problem of unsatisfactory noise reduction effect of the radio equipment in high wind environments is solved, and a good radio effect at high wind speeds is achieved.
Patent Information
- Application Number
- CN202422212148.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-09
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-09-09
AI Technical Summary
The existing radio equipment has poor noise reduction effect in strong wind environments, resulting in poor radio effect.
A wind noise reduction structure consisting of a shell and a frame body is provided with slow flow protrusions and diversion convex strips. The airflow speed is slowed down through the slow flow protrusions, and the diversion convex strips are combed through the airflow flow field to reduce wind noise.
In strong wind environments, significantly reduce wind noise and improve the audio effect of the radio equipment.
Smart Images
Figure CN223080110U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the technical field of audio devices, and particularly to a wind noise reduction structure and a sound receiving device. Background Art
[0002] Nowadays, sound receiving devices such as headsets with call functions and outdoor microphones have become one of the most commonly used electronic devices in outdoor scenarios.
[0003] Currently, to adapt to the outdoor environment, the above-mentioned sound receiving devices usually arrange one or more layers of noise reduction mesh cloth inside the sound receiving port, and use the noise reduction mesh cloth to filter part of the environmental noise.
[0004] However, the filtering ability of the noise reduction mesh cloth for environmental noise is limited. In a strong wind environment (such as cycling, driving with windows open, etc.), due to the large wind noise, the noise reduction effect of the noise reduction mesh cloth is not ideal, resulting in poor sound receiving effect of the sound receiving device. Utility Model Content
[0005] Embodiments of the present disclosure provide a wind noise reduction structure and a sound receiving device, which can solve the technical problems existing in the related art. The technical solutions of the wind noise reduction structure and the sound receiving device are as follows:
[0006] In a first aspect, embodiments of the present disclosure provide a wind noise reduction structure. The wind noise reduction structure is applied to a sound receiving device, and the wind noise reduction structure includes a housing and a frame.
[0007] The housing has a first sound receiving port.
[0008] The frame is located inside the housing. The frame has a first wall surface, a second wall surface, and a sound receiving channel. A first cavity is formed between the first wall surface and the inner wall of the housing. The first cavity is used to accommodate a microphone. A second cavity is formed between the second wall surface and the inner wall of the housing. The second cavity is communicated with the first sound receiving port. The sound receiving channel is respectively communicated with the first cavity and the second cavity. The second wall surface has a flow buffering protrusion. The flow buffering protrusion is located between the first sound receiving port and the sound receiving channel, and is arranged opposite to the first sound receiving port.
[0009] In a possible implementation manner, the first sound receiving port is a strip-shaped opening, and the flow buffering protrusion is a strip-shaped protrusion and extends in the same direction as the first sound receiving port.
[0010] In a possible implementation manner, the housing has two first sound receiving ports, and the two first sound receiving ports are oppositely arranged on the outer side of the housing.
[0011] The second wall surface has two flow buffering protrusions, and each flow buffering protrusion is correspondingly located between a first sound receiving port and the sound receiving channel.
[0012] In a possible implementation, the second wall surface further has a plurality of flow guiding ridges, the plurality of flow guiding ridges are arranged at intervals between the two flow slowing protrusions, a flow guiding passage is formed between every two adjacent flow guiding ridges, and at least one of the flow guiding passages is communicated with the sound receiving channel.
[0013] In a possible implementation, the plurality of flow guiding ridges extend in the same direction.
[0014] In a possible implementation, the extending directions of the plurality of flow guiding ridges are all perpendicular to the first direction, and the first direction is the connecting line direction of the two flow slowing protrusions.
[0015] In a possible implementation, the extending directions of the plurality of flow guiding ridges are all parallel to the first direction, and the first direction is the connecting line direction of the two flow slowing protrusions.
[0016] In a possible implementation, the second wall surface is parallel to the opening direction of the first sound receiving port;
[0017] The frame body further has a windward wall surface, the windward wall surface is located between the wall surface of the frame body close to the first sound receiving port and the second wall surface, the windward wall surface is arranged opposite to the first sound receiving port, and there is an included angle between the windward wall surface and the opening direction, and both sides of the flow slowing protrusion are respectively connected to the windward wall surface and the second wall surface.
[0018] In a possible implementation, the frame body is snap-connected to the housing.
[0019] In a second aspect, the present disclosure provides a sound receiving device, and the sound receiving device includes the wind noise reduction structure in the first aspect and its possible implementations.
[0020] The technical solutions provided by the embodiments of the present disclosure at least include the following beneficial effects:
[0021] The embodiments of the present disclosure provide a wind noise reduction structure. In this wind noise reduction structure, the housing has a first sound receiving port, the frame body is fixed inside the housing, and the frame body has flow slowing protrusions arranged opposite to the first sound receiving port. In this way, during the process of sound receiving by the sound receiving device in a strong wind environment, the air flow enters the inside of the wind noise reduction structure through the first sound receiving port. Under the blocking effect of the flow slowing protrusions, the flow rate of the air flow can be rapidly decreased. Therefore, when the air flow reaches the first cavity through the sound receiving channel and is received by the microphone, the wind noise is small, and the sound receiving effect of the sound receiving device can be improved.
[0022] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] To more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following will briefly introduce the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present disclosure. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.
[0024] Figure 1 is a schematic structural diagram of a wind noise reduction structure shown in the embodiments of the present disclosure;
[0025] Figure 2 is a schematic structural diagram of a wind noise reduction structure shown in the embodiments of the present disclosure;
[0026] Figure 3 is a schematic structural diagram of a wind noise reduction structure shown in the embodiments of the present disclosure;
[0027] Figure 4 is a schematic structural diagram of a wind noise reduction structure shown in the embodiments of the present disclosure;
[0028] Figure 5 is a schematic structural diagram of a wind noise reduction structure shown in the embodiments of the present disclosure;
[0029] Figure 6 is a schematic structural diagram of a wind noise reduction structure shown in the embodiments of the present disclosure;
[0030] Figure 7 is a schematic structural diagram of a wind noise reduction structure shown in the embodiments of the present disclosure;
[0031] Figure 8 is a schematic structural diagram of a wind noise reduction structure shown in the embodiments of the present disclosure;
[0032] Figure 9 is a schematic structural diagram of a wind noise reduction structure adopted in a related technology;
[0033] Figure 10 is a comparison schematic diagram of the wind noise energy weakened by a different wind noise reduction structure shown in the embodiments of the present disclosure.
[0034] Legend Explanation
[0035] 1. Housing;
[0036] 11. First housing part; 12. Second housing part;
[0037] 101. First sound receiving port; 102. First cavity; 103. Second cavity;
[0038] 2. Frame; 20. Air conduction path;
[0039] 21. First wall surface; 22. Second wall surface; 23. Sound collection channel; 24. Windward wall surface;
[0040] 221. Flow-attenuating protrusion; 222. Flow-guiding rib;
[0041] 3. Noise reduction mesh;
[0042] 4. Microphone. Specific implementation manner
[0043] To make the objectives, technical solutions, and advantages of the present disclosure clearer, the following will further describe the embodiments of the present disclosure in detail with reference to the accompanying drawings.
[0044] Unless otherwise defined, the technical terms or scientific terms used herein shall have the ordinary meanings as understood by those of ordinary skill in the art to which the present disclosure pertains. The terms "first", "second", "third", and similar terms used in the patent disclosure specification and claims of the present disclosure do not denote any order, quantity, or importance, but are only used to distinguish different components. Similarly, terms such as "a" or "one" do not denote a quantity limitation, but mean that there is at least one. The terms "comprising" or "including" and similar terms are intended to indicate that the elements or items appearing before "comprising" or "including" cover the elements or items listed after "comprising" or "including" and their equivalents, and do not exclude other elements or items. The terms "connected" or "coupled" and similar terms are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms "upper", "lower", "left", "right", etc. are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationships may also change accordingly.
[0045] Nowadays, sound collection devices such as headsets with call functions and outdoor microphones have become one of the most commonly used electronic devices in outdoor scenarios. The above-mentioned sound collection devices are often used outdoors. To adapt to the outdoor environment, some wind noise reduction structures are usually provided in the sound collection devices to filter out some environmental noises through the wind noise reduction structures, thereby improving the sound collection effect of the sound collection devices. Figure 9 Shown is a wind noise reduction structure. Refer to Figure 9, in the related art, the housing 1 includes a first housing part 11 and a second housing part 12. The first housing part 11 and the second housing part 12 are snap-connected to form a cavity. The microphone 4 is not in the cavity. A first sound collection port 101 is provided on the second housing part 12. The frame 2 is fixed in the cavity and is located on the side of the microphone 4 close to the first sound collection port 101. A first cavity 102 and a second cavity 103 are formed between the frame 2 and the first housing part 11 and the second housing part 12 respectively. The frame 2 has a sound collection channel 23 communicating the first cavity 102 and the second cavity 103. The microphone 4 is fixed in the first cavity 102. The second cavity 103 is a linear cavity and forms an L-shaped air flow passage with the sound collection channel 23. In a strong wind environment, the air flow enters the second cavity 103 through the first sound collection port 101. Most of the air flow flows out of the housing 1 along the second cavity 103, and the remaining part enters the first cavity 102 through the sound collection channel 23 and is collected by the microphone 4. By means of the second cavity 103, the gas flow rate entering the sound collection channel 23 is reduced, and wind noise is reduced. However, through simulation experiments, in a strong wind environment above 15 m / s, the wind noise of the above structure is still significantly high, resulting in a poor sound collection effect of the sound collection device.
[0046] An embodiment of the present disclosure provides a wind noise reduction structure, which is applied to a sound collection device, such as Figure 1 as shown, the wind noise reduction structure includes a housing 1 and a frame 2 (the frame 2 is not shown in Figure 1 ). The housing 1 has a first sound collection port 101. The frame 2 is located inside the housing 1. The frame 2 has a first wall surface 21, a second wall surface 22 and a sound collection channel 23. A first cavity 102 is formed between the first wall surface 21 and the inner wall of the housing 1. A second cavity 103 is formed between the second wall surface 22 and the inner wall of the housing 1. The sound collection channel 23 is respectively communicated with the first cavity 102 and the second cavity 103. The second wall surface 22 has a flow buffering protrusion 221. The flow buffering protrusion 221 is located between the first sound collection port 101 and the sound collection channel 23 and is arranged opposite to the first sound collection port 101.
[0047] Wherein, the first cavity 102 is used to accommodate the microphone, and the second cavity 103 is communicated with the first sound collection port 101.
[0048] In this way, during the sound collection process of the sound collection device in a strong wind environment, the air flow enters the interior of the wind noise reduction structure through the first sound collection port 101. Under the blocking action of the flow buffering protrusion 221, the flow rate of the air flow can be rapidly decreased, and wind noise is reduced. Thus, when the air flow reaches the first cavity 102 through the sound collection channel 23 and is collected by the microphone, the wind noise is small, and the sound collection effect of the sound collection device can be improved.
[0049] It can be understood that the sound collection device can be a Bluetooth headset, an outdoor microphone, etc. Below, the case where the sound collection device is a Bluetooth headset will be introduced.
[0050] In some possible embodiments, the first sound receiving port 101 is a strip-shaped opening, the flow-attenuating protrusion 221 is a strip-shaped protrusion, and the extending direction of the flow-attenuating protrusion 221 is the same as that of the first sound receiving port 101.
[0051] As Figure 1 shown, the housing 1 includes an earphone head and a handle portion. The handle portion has a cylindrical-like structure. A first sound receiving port 101 is formed on the outer wall of the handle portion. The first sound receiving port 101 is a strip-shaped opening and extends in the same direction as the axis of the handle portion. The frame 2 is installed inside the handle portion. Refer to Figure 2 , a flow-attenuating protrusion 221 is provided on the second wall surface 22 of the frame 2. Refer to Figure 3 , the flow-attenuating protrusion 221 is in a long strip shape and extends in the same direction as the first sound receiving port 101.
[0052] In implementation, the strip-shaped opening of the first sound receiving port 101 can expand the sound receiving area of the housing 1 and improve the sound receiving efficiency. At the same time, since the first sound receiving port 101 is a strip-shaped opening and its shape is relatively long and narrow, it can prevent air flow from quickly entering the interior of the housing 1, thereby reducing wind noise. In addition, by setting the first sound receiving port 101 as a strip-shaped opening, in extreme rain and snow weather, to a certain extent, it can prevent rain and snow from entering the earphone interior.
[0053] In one example, the housing 1 includes a first housing portion 11 and a second housing portion 12.
[0054] Refer to Figure 2 , the first housing portion 11 has a handle-like structure and is open at one end. The second housing portion 12 has an arc-shaped plate structure and is adapted to the opening on the first housing portion 11. A through groove structure is formed on the opening edge of the first housing portion 11. After the second housing portion 12 is assembled into the opening of the first housing portion 11, the second housing portion 12 and the above-mentioned through groove structure enclose to form the first sound receiving port 101.
[0055] Further, in implementation, first, the frame 2 can be installed inside the first housing portion 11. Refer to Figure 3 , after the frame 2 is assembled into the opening of the first housing portion 11, the flow-attenuating protrusion 221 on the frame 2 is arranged opposite to the through groove structure of the first housing portion 11 and is located between the through groove structure and the sound receiving channel 23. Subsequently, the second housing portion 12 can be assembled to the side of the frame 2 away from the first housing portion 11 to complete the assembly work of the entire wind noise reduction structure.
[0056] The materials of the first housing portion 11 and the second housing portion 12 can be the same, for example, both are engineering plastics. The materials of the frame 2 and the housing 1 can also be the same, for example, both are engineering plastics. The embodiments of the present disclosure do not limit this. The housing 1 and the frame 2 can both be formed by injection molding. Of course, the housing 1 and the frame 2 can also be formed by other reasonable processes. The embodiments of the present disclosure do not limit this.
[0057] In one example, the frame 2 is snap-fitted with the housing 1.
[0058] Specifically, referring to Figure 2 and Figure 3 , the first wall surface 21 of the frame 2 may have a stepped structure, which is adapted to the opening edge of the second housing portion 12. The second housing portion 12 is located on the side of the frame 2 away from the first housing portion 11 and abuts against the frame 2. The first housing portion 11 and the second housing portion 12 clamp and fix the frame 2, that is, the frame 2 is snap-fitted with the housing 1.
[0059] It can be understood that in order to apply the sound collection effect of the sound collection device with the wind noise reduction structure, the above-mentioned second housing portion 12 is snap-fitted with the part of the frame 2 other than the flow-attenuating protrusion 221.
[0060] In some possible embodiments, the housing 1 has two first sound collection ports 101.
[0061] As Figure 3 shown, the housing 1 has two first sound collection ports 101, and the two first sound collection ports 101 are oppositely arranged on the outer side of the housing 1 and are respectively communicated with the first cavity 102.
[0062] Specifically, referring to Figure 1 and Figure 3 , the connection line of the two first sound collection ports 101 is perpendicular to the orientation of the earphone head.
[0063] In this way, since the connection line of the two first sound collection ports 101 is perpendicular to the orientation of the earphone head, when the user wears the earphone with the wind noise reduction structure provided by the present disclosure, the two first sound collection ports 101 can be respectively oriented towards the front and the back of the user, which can improve the sound collection efficiency.
[0064] The above two first sound collection ports 101 are the same. For the specific structure of the first sound collection port 101, reference can be made to the above introduction, and details are not described here again.
[0065] Furthermore, the second wall surface 22 has two flow-attenuating protrusions 221, and each flow-attenuating protrusion 221 is correspondingly located between a first sound collection port 101 and the sound collection channel 23.
[0066] Exemplarily, the distances from the above two flow-attenuating protrusions 221 to the sound collection channel 23 may be equal. In this way, the difference in the sound collection effect of the earphone for the front and the back can be avoided.
[0067] In some possible embodiments, as Figure 4 shown, the wind noise reduction structure further includes a plurality of flow guiding ridges 222.
[0068] In implementation, the airflow enters the second cavity 103 through the first sound receiving port 101, and then is blocked by the flow retardation protrusion 221, resulting in a reduced flow velocity, thereby significantly reducing the wind noise when the airflow passes through the sound receiving channel 23 and enters the first cavity 102. However, due to the blocking effect of the flow retardation protrusion 221, the flow field of the airflow entering the second cavity 103 is relatively chaotic, which causes obvious wind noise in the airflow passing through the sound receiving channel 23 and entering the first cavity 102. Therefore, a plurality of flow guiding ribs 222 can be provided on the second wall surface 22 to straighten out the gas flow field in the second cavity 103, so as to further reduce the wind noise.
[0069] As Figure 4 shown, the second wall surface 22 has a plurality of flow guiding ribs 222, and the plurality of flow guiding ribs 222 are arranged at intervals between the two flow retardation protrusions 221. A flow guiding passage 20 is formed between every two adjacent flow guiding ribs 222, and at least one flow guiding passage 20 is communicated with the sound receiving channel 23.
[0070] It can be understood that the flow guiding ribs 222 and the frame body 2 can be integrally formed or separately processed and formed.
[0071] Optionally, referring to Figure 4 , the extending directions of the plurality of flow guiding ribs 222 are the same.
[0072] As Figure 4 shown, the wind noise reduction structure includes 4 flow guiding ribs 222, and the 4 flow guiding ribs 222 are arranged at intervals in a direction perpendicular to the connection line of the two first sound receiving ports 101, and the extending direction of each flow guiding rib 222 is parallel to the direction of the above connection line. Among them, a flow guiding passage 20 formed between the two middle flow guiding ribs 222 is communicated with the sound receiving channel 23. Referring to Figure 7 , there are gaps between the two ends of each flow guiding rib 222 and the two flow retardation protrusions 221 respectively, and the gaps can allow the airflow entering the second cavity 103 from the first sound receiving port 101 to enter the above flow guiding passage 20.
[0073] Specifically, the widths of the plurality of flow guiding passages 20 can be the same. In this way, the stability of the flow field in the second cavity 103 can be improved, thereby reducing the wind noise.
[0074] In one example, referring to Figure 4 , the extending directions of the plurality of flow guiding ribs 222 are all perpendicular to the first direction (hereinafter referred to as the first structure).
[0075] Among them, the first direction is the connection line direction of the two flow retardation protrusions 221.
[0076] In another example, referring to Figure 5, the extending directions of the plurality of guiding convex strips 222 are all parallel to the first direction (hereinafter referred to as the second structure).
[0077] As Figure 8 shown, the wind noise reduction structure includes four guiding convex strips 222. Two of the four guiding convex strips 222 are arranged at intervals in the first direction, and the extending direction of each guiding convex strip 222 is perpendicular to the first direction. There is a gap between each of the two guiding convex strips 222 and the adjacent flow-slowing convex 221. This gap allows the airflow entering the second cavity 103 from the first sound receiving port 101 to enter the above-mentioned guiding passage 20. The extending lengths of the other two guiding convex strips 222 are less than the extending lengths of the above-mentioned two guiding convex strips 222, and they are distributed at intervals on both sides of the sound receiving channel 23. The connecting direction of the other two guiding convex strips 222 is perpendicular to the above-mentioned first direction.
[0078] Figure 10 This is a simulation experimental result diagram of the wind noise energy weakened by different wind noise reduction structures in a strong wind environment (wind speed 15 m / s) provided by an embodiment of the present disclosure. Refer to Figure 10 , compared with the wind noise reduction structure provided by the related art, in the range of 20 Hz to 18 kHz, the wind noise energy weakened by the first structure (corresponding to Figure 7 ) and the second structure (corresponding to Figure 8 ) provided by the embodiment of the present disclosure is approximately 5 times that of the wind noise reduction structure provided by the related art. It can be seen that the sound receiving device adopting the wind noise reduction structure provided by the embodiment of the present disclosure still has a good sound receiving effect in a strong wind environment with a wind speed of 15 m / s.
[0079] In some possible embodiments, the frame body 2 has a windward wall surface 24.
[0080] As Figure 6 shown, the second wall surface 22 is parallel to the opening direction of the first sound receiving port 101. The frame body 2 has a windward wall surface 24. The windward wall surface 24 is located between the wall surface of the frame body 2 close to the first sound receiving port 101 and the second wall surface 22. The windward wall surface 24 is arranged opposite to the first sound receiving port 101 and there is an included angle between the windward wall surface 24 and the opening direction of the first sound receiving port 101. Both sides of the flow-slowing convex 221 are connected to the windward wall surface 24 and the second wall surface 22 respectively.
[0081] Exemplarily, the windward wall surface 24 can be a plane, and the included angle between the opening directions of the windward wall surface 24 can be in the range of [40°, 50°].
[0082] In this way, after the airflow enters the second cavity 103 through the first sound receiving port 101, since there is an angle between the windward wall surface 24 and the opening direction of the first sound receiving port 101, the flow direction of the airflow will change under the squeezing action of the windward wall surface 24, so as to avoid the airflow directly contacting the flow slowing protrusion 221 in a direction perpendicular to the flow slowing protrusion 221, causing a large amplitude of vibration of the flow slowing protrusion 221, thereby reducing wind noise.
[0083] The technical solutions provided by the embodiments of the present disclosure at least include the following beneficial effects:
[0084] The embodiments of the present disclosure provide a wind noise reduction structure. In this wind noise reduction structure, the housing 1 has a first sound receiving port 101, the frame 2 is fixed inside the housing 1, and the frame 2 has a flow slowing protrusion 221 arranged opposite to the first sound receiving port 101. In this way, during the sound receiving process of the sound receiving device in a strong wind environment, the airflow enters the inside of the wind noise reduction structure through the first sound receiving port 101. Under the blocking action of the flow slowing protrusion 221, the flow rate of the airflow can be rapidly decreased, achieving wind noise reduction. Thus, when the airflow reaches the first cavity 102 through the sound receiving channel 23 and is received by the microphone, the wind noise is small, and the sound receiving effect of the sound receiving device can be improved.
[0085] The embodiments of the present disclosure provide a sound receiving device, and the sound receiving device includes the above-mentioned wind noise reduction structure.
[0086] The above are only the optional embodiments of the present disclosure, and are not intended to limit the present disclosure. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.
Claims
1. A wind noise reduction structure, characterized in that, The wind noise reduction structure is applied to a sound receiving device, and the wind noise reduction structure includes a housing (1) and a frame body (2); The housing (1) has a first sound receiving port (101); The frame body (2) is located inside the housing (1). The frame body (2) has a first wall surface (21), a second wall surface (22) and a sound receiving channel (23). A first cavity (102) is formed between the first wall surface (21) and the inner wall of the housing (1), and the first cavity (102) is used to accommodate a microphone. A second cavity (103) is formed between the second wall surface (22) and the inner wall of the housing (1). The second cavity (103) is communicated with the first sound receiving port (101). The sound receiving channel (23) is respectively communicated with the first cavity (102) and the second cavity (103). The second wall surface (22) has a flow slowing protrusion (221). The flow slowing protrusion (221) is located between the first sound receiving port (101) and the sound receiving channel (23), and is arranged opposite to the first sound receiving port (101).
2. The wind noise reduction structure according to claim 1, wherein The first sound receiving port (101) is a strip-shaped opening, and the flow slowing protrusion (221) is a strip-shaped protrusion and extends in the same direction as the first sound receiving port (101).
3. The wind noise reduction structure according to claim 1, wherein, The housing (1) has two first sound receiving ports (101), and the two first sound receiving ports (101) are arranged opposite to each other on the outer side of the housing (1); The second wall surface (22) has two flow slowing protrusions (221), and each flow slowing protrusion (221) is correspondingly located between a first sound receiving port (101) and the sound receiving channel (23).
4. The wind noise reduction structure according to claim 3, characterized in that The second wall surface (22) further has a plurality of flow guiding ridges (222). The plurality of flow guiding ridges (222) are arranged at intervals between the two flow slowing protrusions (221). A flow guiding passage (20) is formed between every two adjacent flow guiding ridges (222), and at least one of the flow guiding passages (20) is communicated with the sound receiving channel (23).
5. The wind noise reduction structure according to claim 4, characterized in that, The plurality of flow guiding ridges (222) extend in the same direction.
6. The wind noise reduction structure according to claim 5, characterized in that The extending directions of the plurality of flow guiding ridges (222) are all perpendicular to a first direction, and the first direction is the connecting line direction of the two flow slowing protrusions (221).
7. The wind noise reduction structure according to claim 5, characterized in that, The extending directions of the plurality of flow guiding ridges (222) are all parallel to a first direction, and the first direction is the connecting line direction of the two flow slowing protrusions (221).
8. The wind noise reduction structure according to claim 1, wherein The second wall surface (22) is parallel to the opening direction of the first sound receiving port (101); The frame body (2) further has a windward wall surface (24). The windward wall surface (24) is located between the wall surface of the frame body (2) close to the first sound receiving port (101) and the second wall surface (22). The windward wall surface (24) is arranged opposite to the first sound receiving port (101) and has an included angle with the opening direction. Both sides of the flow slowing protrusion (221) are respectively connected to the windward wall surface (24) and the second wall surface (22).
9. The wind noise reduction structure according to any one of claims 1 to 8, characterized in that, The frame body (2) is snap-connected to the housing (1).
10. A radio device, characterized in that, The sound receiving device includes the wind noise reduction structure according to any one of claims 1 to 9.