Microphone assembly and image capturing device

Abstract

The utility model provides a microphone assembly and an image capturing device, the microphone assembly is arranged on a shell assembly, the microphone assembly comprises a windproof suite and a first microphone, the windproof suite is communicated with the outside of the shell assembly, the windproof suite comprises multiple layers of windproof nets, and the multiple layers of windproof nets are stacked; and the first microphone is communicated with the windproof suite. The windproof suite comprises multiple layers of windproof nets, and the multiple layers of windproof nets are arranged in a stacked mode. Therefore, airflow can be blown to the first microphone only after sequentially passing through the multiple layers of windproof nets, the multiple layers of windproof nets can disperse the airflow step by step, turbulent flow energy is attenuated step by step, impact of the airflow on the first microphone is reduced, and the wind noise suppression effect is improved.

Description

Technical Field

[0001] This application relates to the field of microphone technology, and in particular to a microphone assembly and an image capture device. Background Technology

[0002] With the increasing demand for outdoor acoustic data collection, the dynamic sound pickup performance of electronic devices faces severe challenges. Taking action cameras and wearable devices as examples, when they are moving at high speeds or in strong winds, the wind noise signal will intrude into the acoustic system, significantly reducing speech intelligibility and environmental sound reproduction. Traditional technologies typically use noise reduction structures to reduce environmental wind noise; however, traditional noise reduction structures are not very effective at attenuating wind noise and urgently need improvement. Utility Model Content

[0003] Therefore, it is necessary to provide a microphone assembly and image capture device to address the problem that traditional noise reduction structures are not effective at attenuating wind noise.

[0004] This application provides a microphone assembly disposed on a housing assembly. The microphone assembly includes a windproof kit and a first microphone. The windproof kit is connected to the outside of the housing assembly and includes multiple layers of windproof mesh, which are stacked on top of each other. The first microphone is connected to the windproof kit.

[0005] In the aforementioned microphone assembly, the windproof kit connects to the outside of the housing assembly, and the first microphone is also connected to the windproof kit. That is, the first microphone connects to the outside of the housing assembly via the windproof kit to achieve sound pickup. When airflow blows onto the surface of the windproof mesh, the mesh can block airflow at certain angles, causing some turbulent energy to dissipate along the outer layer of the mesh. Furthermore, the porous structure of the mesh can break down large-scale turbulence into smaller vortices, reducing the direct impact of the airflow on the first microphone. The windproof kit provided in this application includes multiple layers of windproof mesh, which are stacked on top of each other. Therefore, the airflow must pass through multiple layers of windproof mesh sequentially before reaching the first microphone. These multiple layers of mesh can gradually disperse the airflow, achieving gradual attenuation of turbulent energy, reducing the impact of the airflow on the first microphone, and improving wind noise suppression. Attached Figure Description

[0006] Figure 1 This is an isometric schematic diagram of an image capture device provided in an embodiment of this application.

[0007] Figure 2 for Figure 1 The image capture device shown is shown in top view.

[0008] Figure 3 for Figure 2 The image capturing device shown is a cross-sectional view along line AA.

[0009] Figure 4 for Figure 3 A magnified view of point B in the image capture device shown.

[0010] Figure 5 This is a front view of a windproof kit for a microphone assembly provided in one embodiment of this application.

[0011] Figure 6 for Figure 5 An exploded view of the windproof kit shown.

[0012] Figure 7 for Figure 5 The windproof kit shown is a cross-sectional view along line CC.

[0013] Figure 8 for Figure 2 The image capture device shown is a cross-sectional view along line DD.

[0014] Figure 9 This is a cross-sectional schematic diagram of the channel formed in the housing assembly of an image capture device provided in an embodiment of this application.

[0015] Figure 10 This is a simplified schematic diagram showing the distribution of the first microphone, second microphone, sound hole, and channel in the housing assembly according to an embodiment of this application in the first aspect.

[0016] Figure 11 This is a simplified schematic diagram showing the distribution of the first microphone, second microphone, sound hole, and channel in the housing assembly according to an embodiment of this application in the second aspect.

[0017] Figure 12 This is a simplified schematic diagram showing the distribution of the first microphone, second microphone, sound hole, and channel in the housing assembly according to an embodiment of this application in a third aspect.

[0018] Figure 13 This is a simplified schematic diagram showing the distribution of the first microphone, second microphone, sound hole, and channel in the housing assembly according to an embodiment of this application in the fourth aspect.

[0019] Figure label:

[0020] 10. Image capture equipment;

[0021] 100. Microphone assembly; 110. Windproof kit; 111. Windproof net; 112. First windproof net; 1121. First main body; 1121a. First side; 1121b. Second side; 1122. Second main body; 1123. First connecting part; 113. Second windproof net; 1131. Second connecting part; 114. Through hole; 120. First microphone; 130. Foam; 131. Sound hole; 140. Adhesive part; 150. Second microphone;

[0022] 200, Housing assembly; 210, First housing; 211, First receiving groove; 212, First body; 213, First forming part; 220, Second housing; 221, Second receiving groove; 222, Second body; 223, Second forming part; 231, First sound hole; 232, Second sound hole; 233, Third sound hole; 240, Channel; 241, First channel; 242, Second channel; 243, Third channel; 250, Conducting groove; 260, Receiving cavity; 270, First connecting hole; 280, Second connecting hole;

[0023] 300. Lens module;

[0024] S1, first direction; S2, second direction. Detailed Implementation

[0025] 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.

[0026] 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 element 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.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] See Figure 1 , Figure 1 This diagram shows an isometric view of an image capture device 10 according to an embodiment of this application. The image capture device 10 has image capture and audio recording functions. The image capture device 10 can be, but is not limited to, a camera, mobile phone, action camera, tablet computer, laptop computer, and drone.

[0032] Furthermore, the image capture device 10 includes a microphone assembly 100, a housing assembly 200, and a lens module 300, with the microphone assembly 100 and lens module 300 respectively disposed in the housing assembly 200. The microphone assembly 100 has wind noise suppression capabilities, enabling the image capture device 10 to achieve better sound pickup.

[0033] Please see Figure 4 , Figure 5 Combined Figure 2 and Figure 3One embodiment of this application provides a microphone assembly 100, which can be applied to the image capture device 10 as described in various embodiments. The microphone assembly 100 includes a windproof sleeve 110 and a first microphone 120. The windproof sleeve 110 is connected to the outside of the housing assembly 200, and the first microphone 120 is connected to the windproof sleeve 110. The first microphone 120 is connected to the outside of the housing assembly 200 through the windproof sleeve 110 to achieve sound pickup.

[0034] like Figure 4 As shown, the windproof kit 110 includes multiple layers of windproof netting 111, which are stacked together. It is understood that when airflow blows onto the surface of the windproof netting 111, the netting can block airflow at certain angles, causing some turbulent energy to dissipate along the outer layers. Furthermore, the porous structure of the netting breaks down large-scale turbulence into smaller vortices, reducing the direct impact of the airflow on the first microphone 120. The windproof kit 110 provided in this application includes multiple layers of windproof netting 111, which are stacked together. Therefore, airflow must pass through multiple layers of windproof netting 111 sequentially before reaching the first microphone 120. The multiple layers of windproof netting 111 can gradually disperse the airflow, achieving gradual attenuation of turbulent energy, reducing the impact of the airflow on the first microphone 120, and improving wind noise suppression.

[0035] Furthermore, traditional single-layer wind noise attenuation structures can only attenuate wind noise at its inherent frequency. The windproof kit 110 provided in this application includes a multi-layer windproof mesh 111. By configuring each layer of windproof mesh 111 with a combination of different material physical properties (such as dielectric constant, magnetic permeability, and porosity) and structural designs (such as gradient layering and impedance matching), the multi-layer windproof mesh 111 can achieve full-band coverage of wind noise suppression.

[0036] In one embodiment, at least some of the windproof netting 111 is made of different materials. For example, at least some of the multi-layered windproof netting 111 may be configured to be made of materials with different stiffnesses than the other windproof netting 111. Thus, when low-frequency, slowly changing turbulence acts on the windproof kit 110, the relatively flexible windproof netting 111 absorbs energy through slight deformation and slowly dissipates energy through molecular chain friction, reducing the accumulation of low-frequency energy. Conversely, when high-frequency, rapidly changing turbulence acts, the relatively rigid windproof netting 111 blocks the propagation of high-frequency waves through structural reflection and induces turbulence breakup through the edges of the rigid mesh, accelerating energy dissipation. With this configuration, the relatively flexible layer dominates low-frequency energy dissipation, while the relatively rigid layer suppresses high-frequency disturbances. The multi-layered heterogeneous structure naturally switches energy dissipation paths through material properties, achieving wide-band wind noise suppression and adaptive dynamic adjustment of wind speed while ensuring sound transmission within a 20Hz~2000Hz frequency range. Furthermore, the windproof netting 111 can all be made of metal. The outer layer of windproof netting 111, which is closer to the outside of the housing assembly 200, can be configured to use a material with higher rigidity, while the inner layer of windproof netting 111, which is farther away from the outside of the housing assembly 200, can be configured to use a material with relatively lower rigidity. Of course, the windproof netting 111 can also be made of other materials, such as polymer materials.

[0037] Of course, the embodiments of this application do not limit the windproof nets 111 to be configured with different materials. In other words, in some embodiments, the windproof nets 111 can be configured to use the same material. In this case, the windproof kit 110 can also have a wide-band wind noise suppression effect by adjusting parameters such as the size and porosity of each layer of windproof nets 111. Alternatively, in other embodiments, at least some of the windproof nets 111 can be configured to have the same material and structure. Since the multiple layers of windproof nets 111 are stacked, the windproof nets 111 can also attenuate wind noise energy step by step, achieving a significant reduction in wind noise.

[0038] In one embodiment, the windbreak net 111 has through holes 114, and at least some of the through holes 114 in the windbreak net 111 have different sizes. Relatively large through holes 114 can suppress the generation of low-frequency vortices, making the airflow distribution more uniform and reducing the concentrated formation of low-frequency vortices, thus achieving the effect of suppressing low-frequency wind noise. Relatively small through holes 114 absorb high-frequency energy through turbulent breaking and viscous friction, reducing wind noise energy. Therefore, through the differentiated configuration of through holes 114, it is also easy to achieve wide-band wind noise suppression coverage for both low and high frequencies.

[0039] In one embodiment, at least a portion of the windbreak net 111 can be constructed as a woven mesh, meaning that at least a portion of the windbreak net 111 can be formed by weaving. For example, the windbreak net 111 can be formed into a mesh shape by weaving metal wires. At least a portion of the windbreak net 111 can also be constructed as an etched mesh, meaning that the aforementioned through holes 114 are etched into a substrate using an etching process to form the windbreak net 111. Of course, the windbreak net 111 can also be processed and manufactured using other processes, which will not be elaborated here.

[0040] In one embodiment, since the windproof kit 110 is used to connect the first microphone 120 to the exterior of the housing assembly 200, at least a portion of the windproof mesh 111 may also be configured to have a waterproof coating to improve the waterproofness of the microphone assembly 100. The waterproof coating may be configured as, but is not limited to, plasma chemical vapor deposition (PECVD) nanofilm, fluorine-modified polyester nanocoating, p-xylene chemical vapor deposition (CVD) coating, silicone resin coating, and polyurethane coating.

[0041] Please see Figures 5 to 7 In one embodiment, in the first direction S1, the two outermost windbreak nets 111 are interconnected, so that the other one or more layers of windbreak nets 111 are sandwiched in a relatively intermediate position by the two outermost windbreak nets 111. As a result, the stacked multi-layer windbreak nets 111 can form a structurally and positionally stable whole, reducing the risk of one or more layers of windbreak nets 111 swaying or falling off under the action of turbulence, and improving the stability of wind noise attenuation.

[0042] The first direction S1 can be the stacking direction of the multiple layers of windproof netting 111. For the two outermost windproof netting layers 111, they can be configured to connect to each other in the outer edge region of the second direction S2 to reduce the impact on the internal stacking arrangement of the windproof netting 111. The second direction S2 can intersect with the first direction S1. Further, the second direction S2 can be perpendicular to the first direction S1. As one example, when the windproof netting layers 111 included in the windproof kit 110 have a generally circular cross-section, the first direction S1 can be configured as axial and the second direction S2 can be configured as radial.

[0043] In one embodiment, the two outermost windproof nets 111 can be connected and fixed by an external structure, such as by clamping them on opposite sides of each other using a clamping structure. The two outermost windproof nets 111 can also be directly connected to each other; for example, one of the outermost windproof nets 111 may have a first connecting body (such as a locking block), and the other may have a second connecting body (such as a locking groove), with the first and second connecting bodies engaging to achieve connection. The two outermost windproof nets 111 can also be connected by a connection process, such as by adhesive bonding or welding.

[0044] Furthermore, among the multiple windbreak nets 111, at least some of the adjacent windbreak nets 111 can be interconnected to improve positional stability.

[0045] Please continue reading. Figures 5 to 7 In one embodiment, the multi-layered windbreak net 111 includes a first windbreak net 112 and a plurality of second windbreak nets 113, with the first windbreak net 112 disposed outside at least a portion of the second windbreak nets 113. That is, the first windbreak net 112 is located on one side as the outermost layer and is disposed outside at least a portion of the second windbreak nets 113. Thus, the first windbreak net 112 can provide support and protection for at least a portion of the second windbreak nets 113, improving the positional stability of each second windbreak net 113 and further enhancing the stability of wind noise attenuation.

[0046] In one embodiment, the first windproof net 112 described above is located on the outermost layer. The second windproof net 113 connects to the outside of the housing assembly 200 through the first windproof net 112, meaning that the first windproof net 112 is the outermost windproof net 111 in the windproof kit 110 that is closest to the outside of the housing assembly 200. Therefore, the structural strength of the first windproof net 112 can be configured to be greater than that of the second windproof net 113, providing protection for the inner second windproof net 113 and reducing the risk of the second windproof net 113 becoming loose under external airflow disturbances.

[0047] Furthermore, by adjusting the materials and dimensions of the first windproof net 112 and the second windproof net 113, the structural strength of the first windproof net 112 can be made greater than that of the second windproof net 113.

[0048] Please refer to 7, and combine them together. Figure 5 and Figure 6In one embodiment, the first windproof net 112 includes a first body 1121 and a second body 1122. The first body 1121 is disposed outside at least a portion of the second windproof net 113, meaning the first body 1121 is the part of the first windproof net 112 that mainly provides protection. The first body 1121 includes a first side 1121a and a second side 1121b, which are disposed opposite to each other. The first side 1121a communicates with the outside of the housing assembly 200, meaning the first side 1121a is the side of the first body 1121 closer to the outside of the housing assembly 200, while the second side 1121b is the side of the first body 1121 closer to the inside of the housing assembly 200. The second body 1122 is the part of the first windproof net 112 that serves a connecting function, meaning the second body 1122 can be connected to another outermost windproof net 111. The second main body 1122 is connected to the periphery of the second side 1121b, and the second main body 1122 is connected to the second windproof net 113 away from the first side 1121a. In this embodiment, the first windproof net 112 provides protection through its first main body 1121 and acts as a connector through its second main body 1122, so that the windproof kit 110 forms a layout in which the top layer windproof net 111 and the bottom layer windproof net 111 face each other and wrap the remaining multiple layers of windproof net 111, thereby improving the positional stability of each layer of windproof net 111.

[0049] In one embodiment, the aperture of the through-holes 114 of the second windbreak net 113 can be configured to be smaller than the aperture of the through-holes 114 of the first windbreak net 112. The relatively large apertures 114 of the first windbreak net 112 can suppress the generation of low-frequency vortices, making the airflow distribution more uniform and reducing the concentrated formation of low-frequency vortices, thereby achieving the effect of suppressing low-frequency wind noise. The relatively small apertures 114 of the second windbreak net 113 absorb high-frequency energy through turbulent breaking and viscous friction, reducing wind noise energy. Thus, through the differentiated configuration of the through-holes 114, it is easy to achieve wide-band wind noise suppression coverage for both low and high frequencies.

[0050] In one embodiment, the aperture of the through holes 114 of each layer of windproof netting 111 can be configured to decrease sequentially in the first direction S1, so that the aperture of the through holes 114 of each layer of windproof netting 111 is designed in a gradient manner, forming a stepped attenuation channel for turbulent energy, thereby reducing the wind noise received by the first microphone 120.

[0051] As one example, the aperture of the through hole 114 of the first windbreak net 112 is d1, where 0.1mm ≤ d1 ≤ 1mm. Further, the aperture of the through hole 114 of the first windbreak net 112 can be 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, or 1mm.

[0052] As one example, the aperture of the through hole 114 of the second windbreak net 113 is d2, where 0.01mm ≤ d2 ≤ 0.1mm. Further, the aperture of the through hole 114 of the second windbreak net 113 can be 0.01mm, 0.02mm, 0.03mm, 0.04mm, 0.05mm, 0.06mm, 0.07mm, 0.08mm, 0.09mm, or 0.1mm.

[0053] Please see Figure 7 In one embodiment, in the first direction S1, the thickness of the first windproof net 112 is H1, and the thickness of the second windproof net 113 is H2, where H1 ≥ H2. In various embodiments, since the first windproof net 112 provides protection and support for the second windproof net 113, the thickness of the first windproof net 112 can be designed according to the protection and support requirements, and is not specifically limited here. The thickness H1 of the second windproof net 113 in the first direction S1 is 0.1mm ≤ H1 ≤ 0.5mm. Further, the thickness of the second windproof net 113 can be 0.1mm, 0.11mm, 0.12mm, 0.13mm, 0.14mm, 0.15mm, 0.16mm, 0.17mm, 0.18mm, 0.19mm, 0.2mm, 0.25mm, 0.3mm, 0.35mm, 0.4mm, 0.45mm, or 0.5mm.

[0054] Please see Figure 7 In one embodiment, the windproof kit 110 also has an adhesive portion 140, through which adjacent windproof nets 111 can be connected.

[0055] Please see Figure 4 In one embodiment, the microphone assembly 100 further includes foam 130 disposed between the first microphone 120 and the windproof cover 110 to further reduce noise. Furthermore, the foam 130 also provides waterproofing and dustproofing for the first microphone 120. It is understood that the foam 130 has a sound passage 131 through which sound waves can be transmitted to the first microphone 120 for sound pickup.

[0056] Please see Figures 1 to 7 The image capture device 10 provided in one embodiment of this application may include the microphone assembly 100 as described in various embodiments, and therefore the image capture device 10 also has all the beneficial effects of the microphone assembly 100.

[0057] Please see Figure 8 and Figure 9In one embodiment, the housing assembly 200 has a sound hole and a channel 240. The sound hole communicates with the outside of the housing assembly 200, and the channel 240 connects the microphone assembly 100 and the sound hole. Further, the microphone assembly 100 also includes a second microphone 150, which can be disposed inside the housing assembly 200 and communicate with the outside of the housing assembly 200 through the channel 240 and the sound hole. That is, the second microphone 150 is relatively isolated within the housing assembly 200. Therefore, even if the external wind speed is high and the turbulence is severe, the airflow cannot directly act on the second microphone 150. Compared to exposed microphones in conventional technology, this design effectively alleviates the problem of wind noise being difficult to suppress due to the microphone facing the wind directly. It should be noted that the first microphone 120 and the second microphone 150 in this application can be used together. When there is no wind noise or the wind noise is low, the first microphone 120 can be used for sound pickup, improving the sound reproduction accuracy. When wind noise is present, a multi-microphone spectrum splicing algorithm can be used to make the spectrum of the first microphone 120 and the second microphone 150 complementary, thereby achieving better sound reception.

[0058] Please see Figure 3 In one embodiment, the windproof kit 110 can be embedded in the housing assembly 200. It should be noted that existing image capture devices, due to portability considerations, typically lack space for wind noise suppression components, which is detrimental to sound recording. Adding external wind noise suppression accessories, on the other hand, can obstruct the lens, hindering shooting. Compared to conventional technologies, in this application, the windproof kit 110 is embedded in the housing assembly 200, while the channel 240 corresponding to the second microphone 150 is directly formed within the housing assembly 200. This provides wind noise suppression for the first microphone 120 and the second microphone 150 without increasing the overall structural volume of the image capture device 10, improving sound recording performance without the risk of obstructing shooting.

[0059] Please refer to it again. Figure 3 and Figure 4In one embodiment, the housing assembly 200 includes a first housing 210 and a second housing 220, with the first housing 210 and the second housing 220 connected. In the first direction S1, the outermost windproof netting 111 on one side includes a first connecting portion 1123, and the outermost windproof netting 111 on the other side includes a second connecting portion 1131, with the first connecting portion 1123 and the second connecting portion 1131 abutting each other. The first connecting portion 1123 can be configured as the second main body 1122 as described above, and the second connecting portion 1131 is correspondingly a portion on the second windproof netting 113 that corresponds to the second main body 1122. The first housing 210 and the second housing 220 clamp the first connecting portion 1123 and the second connecting portion 1131 towards each other, fixing the windproof kit 110 relative to the housing assembly 200. Thus, without the need for other structural assistance, the first housing 210 and the second housing 220 can easily fix the windproof kit 110, allowing the windproof kit 110 to be embedded in the housing assembly 200.

[0060] Furthermore, the first housing 210 and the second housing 220 can clamp and fix the windproof kit 110 along the first direction S1.

[0061] Please see Figure 4 Combined Figure 10 In one embodiment, the housing assembly 200 has a receiving cavity 260, and the windproof kit 110 is disposed within the receiving cavity 260. The sound hole includes a first sound hole 231, which is formed in the first housing 210 and communicates with the outside of the housing assembly 200. Simultaneously, the first sound hole 231 also communicates with the receiving cavity 260, allowing the windproof kit 110 to communicate with the first sound hole 231. The windproof kit 110 communicates with the outside of the housing assembly 200 through the first sound hole 231, allowing the first microphone 120 to receive sound through the windproof kit 110.

[0062] The first housing 210 has a recessed first receiving groove 211 on the side facing the second housing 220, and the second housing 220 has a recessed second receiving groove 221 on the first side facing the first housing 210. The first receiving groove 211 and the second receiving groove 221 are aligned and joined together to form the aforementioned receiving cavity 260. The first sound hole 231 can communicate with the first receiving groove 211 to be connected to the receiving cavity 260.

[0063] Please see Figure 4 and Figure 8 In one embodiment, the first microphone 120 may be disposed inside the second housing 220. The second housing 220 also has a first connecting hole 270, which corresponds to the placement position of the first microphone 120. The first connecting hole 270 connects the receiving cavity 260 and the interior of the second housing 220 so that the first microphone 120 can pick up sound.

[0064] Please see Figure 8 Combined Figure 10 In one embodiment, the second microphone 150 is disposed in one of the first housing 210 and the second housing 220, and is shielded by the other, thus isolating the second microphone 150 from the outside. Since the housing assembly 200 includes the first housing 210 and the second housing 220, one of the first housing 210 and the second housing 220 can be conveniently configured to provide mounting support for the second microphone 150, while the other provides shielding, reducing the probability of airflow directly impacting the second microphone 150. The channel 240 includes a first channel 241, which connects the second microphone 150 to the sound hole. Further, the sound hole includes a second sound hole 232, which is formed in one of the first housing 210 and the second housing 220 to provide shielding. The first channel 241 connects the second microphone 150 to the second sound hole 232, allowing the second microphone 150 to communicate with the outside of the housing assembly 200 for sound reception.

[0065] Please continue reading. Figure 8 In one embodiment, the second microphone 150 may be disposed within the second housing 220, and the second sound hole 232 may be opened in the first housing 210. Further, the second housing 220 may also have a second connecting hole 280, which is connected to the first channel 241, and the second microphone 150 receives sound sequentially through the second connecting hole 280, the first channel 241 and the second sound hole 232.

[0066] Furthermore, foam 130 may also be provided between the second microphone 150 and the wall of the second housing 220, and the second connecting hole 280 is connected to the second microphone 150 through the foam 130.

[0067] Please see Figure 3 and Figure 8 In one embodiment, the second housing 220 can be configured as the mid-frame of the image capture device 10, while the first housing 210 can be configured as a cover-like component. Alternatively, the first housing 210 and the second housing 220 can be the front and rear housings of the image capture device 10, respectively.

[0068] Please see Figure 8In one embodiment, the channel 240 can be constructed as an elongated structure, for example, the ratio of the length to the equivalent diameter of each channel 240 is between 5:1 and 25:1. It is understood that, on the one hand, the elongated channel 240 has a better effect of blocking external airflow from directly impacting the second microphone 150. On the other hand, for the elongated channel 240, when the equivalent diameter of the channel 240 is close to or smaller than the wavelength of the sound wave, high-frequency sound waves are difficult to propagate effectively in the form of plane waves, resulting in large energy attenuation, which can suppress high-frequency wind noise. Furthermore, for low-frequency wind, the airflow angle is dispersed, so airflow at certain angles cannot enter the elongated channel 240, thus the elongated channel 240 can also directly suppress low-frequency wind noise. Regarding the aforementioned equivalent diameter, when the channel 240 has a circular cross-section, the equivalent diameter is the diameter of the channel 240. When the channel 240 has a non-circular cross-section, the non-circular channel 240 can be converted into a circular channel 240 model for analysis and calculation through equivalent diameter conversion. For detailed calculation methods of equivalent diameter, please refer to the formula for equivalent diameter in relevant technologies, which will not be repeated here.

[0069] In this application, for example, the ratio of the length to the equivalent diameter of the first channel 241 can be configured to be between 5:1 and 25:1, making the first channel 241 elongated. Further, the ratio of the length to the equivalent diameter of the first channel 241 can be 5:1, 6:1, 7:1, 8:1, 9:1, 10:1, 11:1, 13:1, 15:1, 17:1, 19:1, 20:1, 23:1, and 25:1, etc.

[0070] It should be noted that in this application, the first microphone 120 is connected to the outside through the windproof kit 110 for sound pickup. The windproof kit 110 has a good suppression effect on both low-frequency and high-frequency wind noise. Therefore, the first microphone 120 has high sound reproduction and higher sound transmission when picking up sound through the windproof kit 110. The second microphone 150 is connected to the outside through the narrow first channel 241. Airflow cannot directly act on the second microphone 150. Therefore, the second microphone 150 has a good sound pickup effect in relatively harsh environments.

[0071] Therefore, the image capture device 10 provided in this application can use the first microphone 120 and the second microphone 150 to collect sound. When the external wind noise is too strong and the windproof kit 110 cannot effectively suppress it, the second microphone 150 can be configured to use the narrow first channel 241 for sound collection. The narrow first channel 241 makes the second microphone 150 less affected by strong airflow. However, the narrow first channel 241 can significantly attenuate high-frequency energy, but it also poses a risk of high-frequency sound distortion. At this time, the first microphone 120 can be used to collect sound through the windproof kit 110 to compensate for the high-frequency band and reduce the high-frequency distortion problem when the second microphone 150 collects sound. In this application, the first microphone 120 and the second microphone 150 complement each other, which can not only cope with the complex wind direction in harsh environments, but also reduce the risk of high-frequency distortion, comprehensively improving the sound collection effect and taking into account both windproof performance and voice signal integrity.

[0072] In some embodiments, the first microphone 120 may also be configured to communicate with the outside via the channel 240 structure. That is, there may be multiple channels 240, so that the first microphone 120 and the second microphone 150 can communicate with the outside of the housing assembly 200 respectively.

[0073] Please see Figure 8 In one embodiment, each channel 240 can be formed by the first housing 210 and the second housing 220, so there is no need to add other components for forming the channel 240, simplifying the overall structure and size of the image capture device 10. Furthermore, some sound holes (such as the second sound hole 232) can also be formed by the first housing 210 and the second housing 220.

[0074] Please see Figure 8 In one embodiment, at least one of the first housing 210 and the second housing 220 is provided with a conductive groove 250, which is closed by the other to form channels 240.

[0075] Of course, each channel 240 is not limited to being formed by a closed groove structure. For example, please refer to... Figure 9 In one embodiment, the first housing 210 includes a first body 212 and a first forming portion 213, the first forming portion 213 protruding from the first body 212. The second housing 220 includes a second body 222 and a second forming portion 223, the second forming portion 223 protruding from the second body 222. The first forming portion 213 and the second forming portion 223 are spaced apart, and the first body 212, the first forming portion 213, the second body 222, and the second forming portion 223 together form each channel 240.

[0076] Please see Figure 11In one embodiment, channel 240 further includes a second channel 242, which connects the first microphone 120 and the second sound hole 232. That is, in this embodiment, the first microphone 120 not only receives sound relatively directly through the windproof kit 110 and the first sound hole 231, but also receives sound through the elongated second channel 242 and the second sound hole 232. Similar to the second microphone 150, the elongated second channel 242 reduces the impact of external airflow on the first microphone 120. Therefore, when the external environment is harsh, with strong wind noise and high wind speed, the first microphone 120 can receive sound through the second channel 242 and the second sound hole 232.

[0077] Please see Figure 12 In one embodiment, the windproof kit 110 is connected to the first sound hole 231, and the first channel 241 connects the second microphone 150 to the first sound hole 231. That is, in this embodiment, the first microphone 120 and the second microphone 150 share the same first sound hole 231 for sound reception, simplifying the structure of the housing assembly 200 and facilitating manufacturing.

[0078] Please see Figure 13 In one embodiment, the sound hole includes a third sound hole 233, and the channel 240 includes a third channel 243, which connects the third sound hole 233 and the first sound hole 231. In this case, the first microphone 120 can communicate with the outside world not only through the first sound hole 231, but also through the third channel 243 and the third sound hole 233, thus achieving a balance against airflow impact.

[0079] For the second microphone 150, when the first channel 241 also connects the second microphone 150 and the first sound hole 231, the second microphone 150 not only connects to the outside through the first channel 241 and the first sound hole 231 for sound pickup, but also connects through the first channel 241, the third channel 243, and the third sound hole 233 for sound pickup. Using the latter sound pickup path results in a longer path and the second microphone 150 is less affected by external airflow. When the first channel 241 connects the second microphone 150 and the second sound hole 232, then the first microphone 120 and the second microphone 150 do not have a connection relationship on channel 240.

[0080] It should be noted that, without contradiction, the channel 240 connection methods provided in each embodiment can be arbitrarily combined to meet the sound reception requirements, and will not be described in detail here.

[0081] 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.

[0082] 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. A microphone assembly, characterized in that, The microphone assembly is disposed on the housing assembly, and the microphone assembly includes: A windproof kit, which is connected to the outside of the housing assembly, includes multiple layers of windproof mesh, which are stacked together. A first microphone is connected to the windproof kit.

2. The microphone assembly according to claim 1, characterized in that, In the first direction, the two outermost windproof nets are connected to each other; And / or, the multi-layered windbreak netting includes a first windbreak netting and a plurality of second windbreak nettings, wherein the first windbreak netting is disposed outside at least a portion of the second windbreak nettings.

3. The microphone assembly according to claim 2, characterized in that, The first windproof net includes a first main body and a second main body. The first main body is disposed outside at least a portion of the second windproof net. The first main body includes a first side and a second side disposed opposite to each other. The first side communicates with the outside of the housing assembly. The second main body is connected to the periphery of the second side. The second main body is connected to the second windproof net away from the first side. And / or, the first windproof net is located on the outermost layer, the second windproof net is connected to the outside of the shell assembly through the first windproof net, and the structural strength of the first windproof net is greater than the structural strength of the second windproof net.

4. The microphone assembly according to any one of claims 1 to 3, characterized in that, The windbreak net has through holes, and at least a portion of the through holes in the windbreak net have different sizes; and / or At least some of the windbreak nets are made of different materials; and / or Some of the windbreak netting is constructed as etched mesh; and / or Some of the windbreak nets described are constructed as woven mesh; and / or At least part of the windproof netting has a waterproof coating.

5. An image capture device, characterized in that, The image capture device includes: Housing assembly; A microphone assembly, disposed on the housing assembly, includes: A windproof kit, which is connected to the outside of the housing assembly, includes multiple layers of windproof mesh, which are stacked together. A first microphone is connected to the windproof kit.

6. The image capture device according to claim 5, characterized in that, In a first direction, the outermost windproof net on one side includes a first connecting portion, and the outermost windproof net on the other side includes a second connecting portion, wherein the first connecting portion and the second connecting portion are fitted together. The housing assembly includes a first housing and a second housing, the first housing being connected to the second housing, and the first housing and the second housing clamping the first connecting portion and the second connecting portion towards each other.

7. The image capture device according to claim 6, characterized in that, The housing assembly has a sound hole and a channel, the sound hole communicating with the outside of the housing assembly, and the channel communicating with the microphone assembly and the sound hole; The microphone assembly further includes a second microphone, which is disposed in one of the first housing and the second housing and is blocked by the other. The channel includes a first channel that connects the second microphone and the sound hole.

8. The image capture device according to claim 7, characterized in that, The sound hole includes a first sound hole and a second sound hole, the windproof kit is connected to the first sound hole, and the first channel is connected to the second microphone and the second sound hole; And / or, the channel further includes a second channel, the second channel connecting the first microphone and the second sound hole; And / or, the windproof kit is connected to the first sound hole, and the first channel connects the second microphone to the first sound hole; And / or, the tone hole includes a third tone hole, the channel includes a third channel, and the third channel connects the third tone hole and the first tone hole.

9. The image capture device according to claim 7 or 8, characterized in that, The housing assembly includes a first housing and a second housing; At least one of the first housing and the second housing is provided with a conductive groove, and the conductive groove is closed by the other housing to form each of the channels; or The first housing includes a first body and a first forming portion, the first forming portion protruding from the first body. The second housing includes a second body and a second forming portion, the second forming portion protruding from the second body. The first forming portion and the second forming portion are spaced apart. The first body, the first forming portion, the second body, and the second forming portion together form each of the channels. And / or, the ratio of the length to the equivalent diameter of each of the channels is between 5:1 and 25:

1.

10. The image capture device according to claim 5, characterized in that, The windbreak net has through holes, and at least a portion of the through holes in the windbreak net have different sizes; and / or At least some of the windbreak nets are made of different materials; and / or Some of the windbreak netting is constructed as etched mesh; and / or Some of the windbreak nets described are constructed as woven mesh; and / or At least part of the windproof netting has a waterproof coating.

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