Sound wave acquisition equipment
By using through-hole and windproof structures in the acoustic wave acquisition device, the problem of noise interference in the acoustic wave acquisition device under strong wind conditions was solved, and a high signal-to-noise ratio acoustic wave acquisition effect was achieved.
Patent Information
- Application Number
- CN202511826574.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-05
- Publication Date
- 2026-02-13
AI Technical Summary
Sound wave acquisition devices have difficulty effectively acquiring target sound waves in strong wind environments because the noise generated when the airflow impacts the sensor obscures the target sound waves.
A sound wave acquisition device was designed, which uses through holes on the sound wave transmission component to guide the airflow out instead of directly impacting the sensor. Combined with a windproof cover and gap structure, the impact of airflow on the sensor is reduced, ensuring that the sound waves can be effectively propagated and acquired.
Acquiring target sound waves with a higher signal-to-noise ratio in strong wind environments improves the signal data quality of sound wave acquisition equipment and reduces noise interference.
Smart Images
Figure CN121521256A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of acoustic wave acquisition technology, and in particular to an acoustic wave acquisition device. Background Technology
[0002] In the field of acoustic imaging technology, acoustic acquisition devices are typically used to collect target acoustic waves. However, in these devices, the sensors are easily impacted by airflow. The noise generated when the airflow impacts the sensor can obscure the target acoustic waves that the sensor needs to collect, making it difficult for the acoustic acquisition device to collect target acoustic waves in strong winds. Summary of the Invention
[0003] Therefore, it is necessary to propose a sound wave acquisition device to address the problem that current sound wave acquisition devices are unable to acquire target sound waves in strong wind environments.
[0004] A sound wave acquisition device, comprising:
[0005] A sound wave acquisition circuit includes a circuit board and a sound wave sensor, wherein the sound wave sensor is disposed on the circuit board;
[0006] An acoustic wave transmission device is disposed on the circuit board and located on the side of the circuit board close to the acoustic wave sensor; the acoustic wave transmission device is provided with an acoustic wave transmission hole, which penetrates the acoustic wave transmission device along the arrangement direction of the acoustic wave transmission device and the circuit board, and the acoustic wave sensor is at least partially located in the acoustic wave transmission hole; a through hole is provided on the hole wall of the acoustic wave transmission hole, which penetrates the hole wall of the acoustic wave transmission hole.
[0007] In one embodiment, the acoustic sensor has a pickup hole on the side opposite to the circuit board, and the pickup hole is located inside the acoustic wave transmission hole.
[0008] In one embodiment, the hole wall includes a plurality of sidewalls arranged around the axis of the acoustic wave transmission hole and connected end to end in sequence;
[0009] The through hole is provided on the side wall, and each side wall has at least one through hole.
[0010] In one embodiment, the distances from each sidewall of the acoustic wave transmission hole to the axis of the acoustic wave transmission hole are all equal.
[0011] In one embodiment, the acoustic wave transmission device is provided with a plurality of acoustic wave transmission holes, the plurality of acoustic wave transmission holes are arranged at intervals, and at least a portion of the through holes connect adjacent acoustic wave transmission holes;
[0012] The acoustic wave acquisition circuit includes multiple acoustic wave sensors, and the acoustic wave transmission holes are correspondingly arranged with respect to the acoustic wave sensors.
[0013] In one embodiment, the through-hole is located between the sidewalls of two adjacent acoustic wave transmission holes.
[0014] In one embodiment, at least a portion of the through holes on the wall of the acoustic wave transmission hole extend to the peripheral wall of the acoustic wave transmission element.
[0015] In one embodiment, the acoustic wave sensor includes a plurality of acoustic wave sensors, and the acoustic wave transmission element includes a plurality of acoustic wave transmission elements; the acoustic wave sensor is disposed correspondingly to the acoustic wave transmission element, and the acoustic wave sensor is at least partially located within the acoustic wave transmission hole of the corresponding acoustic wave transmission element.
[0016] In one embodiment, the acoustic wave acquisition device includes a windproof cover, which is disposed on the side of the acoustic wave transmission element away from the circuit board, and the side of the windproof cover near the acoustic wave transmission element has a receiving cavity.
[0017] The acoustic wave transmission device is located inside the receiving cavity. There is a first gap between the side of the acoustic wave transmission device away from the circuit board and the bottom wall of the receiving cavity. There is a second gap between the peripheral wall of the acoustic wave transmission device and the peripheral wall of the receiving cavity. The windproof cover is provided with an air inlet on the side away from the acoustic wave transmission device. The air inlet is connected to the receiving cavity.
[0018] In one embodiment, the air inlet extends through the windshield along the axial direction of the sound wave transmission hole;
[0019] The diameter of the air inlet gradually increases from the direction the wind shield points toward the sound wave transmission element.
[0020] In this embodiment, when detecting target sound waves in a strong wind environment, the target sound waves can enter the sound wave transmission hole from the end of the sound wave transmission component away from the circuit board, and then propagate along the axial direction of the sound wave transmission hole towards the sound wave sensor, ultimately being collected by the sound wave sensor. During this process, even if external airflow enters the sound wave transmission hole, it will be guided to the outside of the sound wave transmission component by the through holes on the hole wall, and will not be directly blown towards the sound wave sensor along the axial direction of the sound wave transmission hole. By using through holes to guide the gas entering the sound wave transmission hole to the outside of the sound wave transmission component, the impact of the gas on the sound wave sensor inside the sound wave transmission hole can be reduced, the noise generated by the gas impacting the sound wave sensor inside the sound wave transmission hole can be reduced, and the target sound waves entering the sound wave transmission hole cannot be drowned out by the noise generated by the gas impacting the sound wave sensor inside the sound wave transmission hole. This reduces the noise inside the sound wave transmission hole, allowing the sound wave sensor to complete the acquisition of the target sound waves with a higher signal-to-noise ratio, thus improving the quality of the signal data acquired by the sound wave acquisition device.
[0021] In summary, the acoustic wave acquisition device in this embodiment, through the above-described settings, can acquire target acoustic waves with a high signal-to-noise ratio in strong wind environments. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in the embodiments or exemplary embodiments of this application, the drawings used in the description of the embodiments or exemplary embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0023] Figure 1 This is a schematic diagram of the acoustic wave acquisition device in one embodiment of this application.
[0024] Figure 2 for Figure 1 An exploded view of the acoustic wave acquisition device shown.
[0025] Figure 3 for Figure 1 The image shows a cross-sectional view at point A of the windproof cover of the acoustic wave acquisition device.
[0026] Figure 4 for Figure 3 A partially enlarged schematic diagram of the structure at point B in the sectional view shown.
[0027] Figure 5 for Figure 2 The exploded view shown is a partial cross-sectional view of the sound wave transmission device.
[0028] Figure 6 for Figure 2The exploded view shown is a partial cross-sectional view of the wind shield.
[0029] Figure label:
[0030] Sound wave acquisition device 10;
[0031] Sound wave acquisition circuit 100, circuit board 110, sound wave sensor 120.
[0032] Sound wave transmission component 200, sound wave transmission hole 210, hole wall 211, side wall 211-1, through hole 212, peripheral wall 220;
[0033] Windproof cover 300, receiving cavity 310, first gap 311, second gap 312, air inlet 320. Detailed Implementation
[0034] 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.
[0035] 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.
[0036] 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.
[0037] 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.
[0038] 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.
[0039] 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.
[0040] Please see Figures 1 to 6 , Figure 1 A schematic diagram of the structure of a sound wave acquisition device 10 according to an embodiment of this application is shown. An embodiment of this application provides a sound wave acquisition device 10 comprising: a sound wave acquisition circuit 100 and a sound wave transmission component 200. The sound wave acquisition circuit 100 includes a circuit board 110 and a sound wave sensor 120, the sound wave sensor 120 being disposed on the circuit board 110. The sound wave transmission component 200 is disposed on the circuit board 110 and located on the side of the circuit board 110 close to the sound wave sensor 120; the sound wave transmission component 200 is provided with a sound wave transmission hole 210, which penetrates the sound wave transmission component 200 along the arrangement direction of the sound wave transmission component 200 and the circuit board 110, and the sound wave sensor 120 is at least partially located within the sound wave transmission hole 210; a through hole 212 is provided on the hole wall 211 of the sound wave transmission hole 210, the through hole 212 penetrating the hole wall 211 of the sound wave transmission hole 210.
[0041] In this embodiment, when the sound wave acquisition device 10 detects target sound waves in a strong wind environment, the target sound waves can enter the sound wave transmission hole 210 from the end of the sound wave transmission component 200 away from the circuit board 110, and then propagate along the axial direction of the sound wave transmission hole 210 towards the sound wave sensor 120, and finally be collected by the sound wave sensor 120. During this process, even if external airflow enters the sound wave transmission hole 210 of the sound wave transmission component 200, it will be guided by the through hole 212 on the hole wall 211 of the sound wave transmission hole 210 and flow to the outside of the sound wave transmission component 200, instead of being blown directly towards the sound wave sensor 120 along the axial direction of the sound wave transmission hole 210. By using through-hole 212 to guide the gas entering the sound wave transmission hole 210 to the outside of the sound wave transmission device 200, the impact of the gas on the sound wave sensor 120 in the sound wave transmission hole 210 can be reduced, the noise generated by the gas impacting the sound wave sensor 120 in the sound wave transmission hole 210 can be reduced, and the target sound wave entering the sound wave transmission hole 210 can be prevented from being drowned out by the noise generated by the gas impacting the sound wave sensor 120 in the sound wave transmission hole 210. This reduces the noise in the sound wave transmission hole 210, allowing the sound wave sensor 120 to complete the acquisition of the target sound wave with a higher signal-to-noise ratio, thereby improving the quality of the signal data acquired by the sound wave acquisition device 10.
[0042] In summary, the acoustic wave acquisition device 10 in this embodiment, through the above-described settings, can acquire target acoustic waves with a high signal-to-noise ratio in strong wind environments.
[0043] Please see Figures 1 to 6 In some embodiments, the acoustic sensor 120 has a pickup hole (not shown) on the side opposite to the circuit board 110, and the pickup hole is located inside the acoustic transmission hole 210.
[0044] In this embodiment, a portion of the target sound wave within the sound wave transmission hole 210 of the sound wave acquisition device 10 propagates along the axial direction of the sound wave transmission hole 210 towards the sound wave sensor 120 and enters the pickup hole of the sound wave sensor 120 for acquisition. By setting the pickup hole, the sound reception effect of the sound wave sensor 120 can be improved, thereby enhancing the acquisition quality of the target sound wave by the sound wave sensor 120.
[0045] In some embodiments, the orthographic projection of the pickup hole on the circuit board 110 is located at the center of the orthographic projection of the sound wave transmission hole 210 on the circuit board 110.
[0046] Please see Figures 1 to 6 In some embodiments, the hole wall 211 includes a plurality of sidewalls 211-1, which are arranged around the axis of the acoustic wave transmission hole 210 and connected end to end in sequence. A through hole 212 is provided on the sidewall 211-1, and each sidewall 211-1 is provided with at least one through hole 212.
[0047] In this embodiment, the sound wave acquisition device 10 receives external airflow from the end of the sound wave transmitter 200 away from the circuit board 110. After entering the sound wave transmission hole 210 of the sound wave transmitter 200, the airflow flows out of the sound wave transmitter 200 under the guidance of the through holes 212 on the side walls 211-1 of the hole wall 211 of the sound wave transmission hole 210. Optionally, the hole wall 211 includes six side walls 211-1, and the sound wave transmission hole 210 is constructed as a hexagonal hole. By constructing the sound wave transmission hole 210 as a hexagonal hole, it is possible to prevent external airflow from entering the sound wave transmission hole 210 of the sound wave transmitter 200 away from the end of the sound wave transmitter 200 away from the circuit board 110 and forming a continuous vortex within the sound wave transmission hole 210.
[0048] In some embodiments, the diameter of the through hole 212 is between 3mm and 4mm, and the axis of the through hole 212 on each sidewall 211-1 is perpendicular to the axis of the acoustic wave transmission hole 210.
[0049] In some embodiments, each sidewall 211-1 is provided with at least two through holes 212, and the through holes 212 on each sidewall 211-1 are arranged in a straight line along the axial direction of the acoustic wave transmission hole 210.
[0050] Please see Figures 1 to 6 In some embodiments, the distances from each sidewall 211-1 of the acoustic wave transmission hole 210 to the axis of the acoustic wave transmission hole 210 are all equal.
[0051] In this embodiment, the acoustic wave acquisition device 10 ensures that the distances from each sidewall 211-1 of the acoustic wave transmission hole 210 to the axis of the acoustic wave transmission hole 210 are equal. This allows the acoustic wave transmission hole 210 to be constructed as a regular polygonal hole, thereby ensuring that when external airflow enters the acoustic wave transmission hole 210 of the acoustic wave transmission device 200 from the end away from the circuit board 110, the through holes 212 on each sidewall 211-1 of the acoustic wave transmission hole 210 can guide the gas inside the acoustic wave transmission hole 210 to the same extent.
[0052] Please see Figures 1 to 6 In some embodiments, the acoustic wave transmission device 200 is provided with a plurality of acoustic wave transmission holes 210, which are arranged at intervals, and at least a portion of the through holes 212 connect adjacent acoustic wave transmission holes 210. The acoustic wave acquisition circuit 100 includes a plurality of acoustic wave sensors 120, and the acoustic wave transmission holes 210 are correspondingly arranged with the acoustic wave sensors 120.
[0053] In this embodiment, the sound wave acquisition device 10 allows target sound waves to enter multiple sound wave transmission holes 210 from the end of the sound wave transmitter 200 away from the circuit board 110. The sound waves then propagate along the axial direction of each sound wave transmission hole 210 towards each sound wave sensor 120, and are ultimately acquired by the multiple sound wave sensors 120. During this process, external airflow enters the multiple sound wave transmission holes 210 from the end of the sound wave transmitter 200 away from the circuit board 110. At least a portion of the gas in the sound wave transmission holes 210 is guided by the through holes 212 connecting the sound wave transmission hole 210 to adjacent sound wave transmission holes 210 and flows into the sound wave transmission holes 210. By providing multiple sound wave transmission holes 210 and multiple sound wave sensors 120, the sound wave acquisition device 10 can acquire more target sound waves.
[0054] In some embodiments, a number of through holes 210 on the wall 211 of each acoustic wave transmission hole 210 connect to adjacent acoustic wave transmission holes 210, while another number of through holes 210 extend to the peripheral wall 220 of the acoustic wave transmission member 200. Thus, gas within each acoustic wave transmission hole 210 can flow into the adjacent acoustic wave transmission hole 210 under the guidance of the through holes 212 connecting the acoustic wave transmission hole 210 to the adjacent acoustic wave transmission hole 210, and then flow out of the adjacent acoustic wave transmission hole 210 through the through holes 210 on the wall 211 of the adjacent acoustic wave transmission hole 210 that communicate with the outside of the acoustic wave transmission member 200, flowing to the outside of the acoustic wave transmission member 200.
[0055] Please see Figures 1 to 6 In some embodiments, the through hole 212 is located between the sidewalls 211-1 of two adjacent acoustic wave transmission holes 210.
[0056] In this embodiment, the gas in each sound wave transmission hole 210 of the sound wave acquisition device 10 will flow into the adjacent sound wave transmission hole 210 through the through hole 212 between the side wall 211-1 of the sound wave transmission hole 210 and the side wall 211-1 of the adjacent sound wave transmission hole 210.
[0057] Please see Figures 1 to 6 In some embodiments, at least a number of through holes 212 on the hole wall 211 of the acoustic wave transmission hole 210 extend to the peripheral wall 220 of the acoustic wave transmission member 200.
[0058] In this embodiment, the external airflow enters the multiple sound wave transmission holes 210 of the sound wave transmission device 200 from the end of the sound wave transmission device 200 away from the circuit board 110. The gas in each sound wave transmission hole 210 flows out of the sound wave transmission device 200 through at least a portion of the through holes 212 on the hole wall 211 of the sound wave transmission hole 210.
[0059] Optionally, a number of through holes 212 on the hole wall 211 of the acoustic wave transmission hole 210 extend to the peripheral wall 220 of the acoustic wave transmission member 200.
[0060] Please see Figures 1 to 6 In some embodiments, the acoustic wave sensor 120 includes multiple acoustic wave transmission elements 200; the acoustic wave sensor 120 and the acoustic wave transmission element 200 are respectively disposed, and the acoustic wave sensor 120 is at least partially located in the acoustic wave transmission hole 210 of the corresponding acoustic wave transmission element 200.
[0061] In this embodiment, when the sound wave acquisition device 10 detects target sound waves in a strong wind environment, the target sound waves can enter the sound wave transmission holes 210 from the ends of each sound wave transmission element 200 away from the circuit board 110, and then propagate along the axial direction of each sound wave transmission hole 210 towards the sound wave sensors 120 inside each sound wave transmission hole 210, and finally be collected by multiple sound wave sensors 120. During this process, the gas entering the sound wave transmission holes 210 of each sound wave transmission element 200 will flow out of the sound wave transmission element 200 under the guidance of the through holes 212 on the hole wall 211 of the sound wave transmission hole 210. By setting multiple sound wave transmission elements 200 and multiple sound wave sensors 120, the sound wave acquisition device 10 can collect more target sound waves.
[0062] Optionally, multiple acoustic wave transmission elements 200 are arranged at intervals, with a gap between each acoustic wave transmission element 200 and its adjacent acoustic wave transmission element 200.
[0063] Please see Figures 1 to 6 In some embodiments, the acoustic wave acquisition device 10 includes a windproof cover 300, which is disposed on the side of the acoustic wave transmitter 200 away from the circuit board 110. A receiving cavity 310 is provided on the side of the windproof cover 300 near the acoustic wave transmitter 200. The acoustic wave transmitter 200 is located within the receiving cavity 310. A first gap 311 exists between the side of the acoustic wave transmitter 200 away from the circuit board 110 and the bottom wall of the receiving cavity 310. A second gap 312 exists between the peripheral wall 220 of the acoustic wave transmitter 200 and the peripheral wall of the receiving cavity 310. An air inlet 320 is provided on the side of the windproof cover 300 away from the acoustic wave transmitter 200, and the air inlet 320 communicates with the receiving cavity 310.
[0064] In this embodiment, when the sound wave acquisition device 10 detects target sound waves in a strong wind environment, when external gas flows into the receiving cavity 310 through the air inlet 320, part of the gas will enter the second gap 312 through the first gap 311 and then flow out of the receiving cavity 310 through the second gap 312. Another part of the gas will enter the sound wave transmission hole 210 from the end of the sound wave transmission device 200 away from the circuit board 110 through the first gap 311. Then, guided by the through hole 212 on the hole wall 211 of the sound wave transmission hole 210, it will flow to the outside of the sound wave transmission device 200, enter the second gap 312, and finally flow out of the receiving cavity 310 through the second gap 312.
[0065] A first gap 311 exists between the side of the acoustic wave transmitter 200 facing away from the circuit board 110 and the bottom wall of the receiving cavity 310, and a second gap 312 exists between the peripheral wall 220 of the acoustic wave transmitter 200 and the peripheral wall of the receiving cavity 310. This connection between the first gap 311 and the second gap 312 allows for gas diversion within the first gap 311, ensuring that only a portion of the gas flows into the acoustic wave transmission hole 210, thus reducing the amount of gas entering the acoustic wave transmission hole 210 and consequently reducing the impact of the gas on the acoustic wave sensor 120. Furthermore, the gas within the acoustic wave transmission hole 210 is guided to the second gap 312 through a through-hole 212 on the hole wall 211, further reducing the impact of the gas on the acoustic wave sensor 120 within the acoustic wave transmission hole 210.
[0066] In summary, the acoustic wave acquisition device 10 in this embodiment, through the above-described settings, can acquire target acoustic waves with a high signal-to-noise ratio in strong wind environments.
[0067] It should be further noted that, along the stacking direction of the circuit board 110 and the acoustic wave transmission device 200, the orthographic projection of the acoustic wave transmission device 200 overlaps with the orthographic projection of the circuit board 110, or the acoustic wave transmission device 200 covers the orthographic projection of the circuit board 110.
[0068] Optionally, along the stacking direction of the circuit board 110 and the acoustic wave transmission device 200, the size of the first gap 311 is between 8mm and 10mm. Since the size of the first gap 311 along the stacking direction of the circuit board 110 and the acoustic wave transmission device 200 is small, it is difficult for gas to enter the first gap 311. In addition, when gas enters the first gap 311, the gas will flow into the second gap 312 under the compression of the first gap 311.
[0069] Please see Figures 1 to 6 In some embodiments, the air inlet 320 extends through the wind shield 300 along the axial direction of the sound wave transmission hole 210. The diameter of the air inlet 320 gradually increases from the direction of the wind shield 300 toward the sound wave transmission element 200.
[0070] In this embodiment, the acoustic wave acquisition device 10 has an enlarging air inlet 320 as the wind shield 300 points towards the acoustic wave transmission element 200. As the gas flows from the air inlet 320 towards the acoustic wave transmission element 200, it is guided by the wall of the air inlet 320 into the first gap 311, then flows towards the periphery of the receiving cavity 310, and most of it flows into the second gap 312, before exiting the receiving cavity 310 through the second gap 312. By setting the air inlet 320 to gradually increase in diameter as the wind shield 300 points towards the acoustic wave transmission element 200, most of the gas flowing through the air inlet 320 can be guided to the second gap 312, reducing the amount of gas entering the acoustic wave transmission hole 210 through the first gap 311.
[0071] Optionally, the minimum diameter of the air inlet 320 is between 6mm and 10mm, in the direction from the wind shield 300 to the sound wave transmission component 200.
[0072] 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.
[0073] 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 sound wave acquisition device, characterized in that, The acoustic wave acquisition device includes: A sound wave acquisition circuit includes a circuit board and a sound wave sensor, wherein the sound wave sensor is disposed on the circuit board; An acoustic wave transmission device is disposed on the circuit board and located on the side of the circuit board close to the acoustic wave sensor; the acoustic wave transmission device is provided with an acoustic wave transmission hole, which penetrates the acoustic wave transmission device along the arrangement direction of the acoustic wave transmission device and the circuit board, and the acoustic wave sensor is at least partially located in the acoustic wave transmission hole; a through hole is provided on the hole wall of the acoustic wave transmission hole, which penetrates the hole wall of the acoustic wave transmission hole.
2. The acoustic wave acquisition device according to claim 1, characterized in that, The acoustic sensor has a pickup hole on the side opposite to the circuit board, and the pickup hole is located inside the acoustic wave transmission hole.
3. The acoustic wave acquisition device according to claim 1 or 2, characterized in that, The hole wall includes multiple sidewalls, which are arranged around the axis of the acoustic wave transmission hole and connected end to end in sequence; The through hole is provided on the side wall, and each side wall has at least one through hole.
4. The acoustic wave acquisition device according to claim 3, characterized in that, The distances from each sidewall of the acoustic wave transmission hole to the axis of the acoustic wave transmission hole are all equal.
5. The acoustic wave acquisition device according to claim 3, characterized in that, The acoustic wave transmission device is provided with a plurality of acoustic wave transmission holes, which are arranged at intervals, and at least a portion of the through holes connect adjacent acoustic wave transmission holes. The acoustic wave acquisition circuit includes multiple acoustic wave sensors, and the acoustic wave transmission holes are correspondingly arranged with respect to the acoustic wave sensors.
6. The acoustic wave acquisition device according to claim 5, characterized in that, The through hole is located between the sidewalls of two adjacent acoustic wave transmission holes.
7. The acoustic wave acquisition device according to claim 6, characterized in that, At least a portion of the through holes on the wall of the acoustic wave transmission hole extend to the peripheral wall of the acoustic wave transmission element.
8. The acoustic wave acquisition device according to claim 1, characterized in that, The acoustic wave sensor includes multiple components, and the acoustic wave transmission element includes multiple components; the acoustic wave sensor is correspondingly disposed with the acoustic wave transmission element, and the acoustic wave sensor is at least partially located within the acoustic wave transmission hole of the corresponding acoustic wave transmission element.
9. The acoustic wave acquisition device according to claim 1, characterized in that, The acoustic wave acquisition device includes a windproof cover, which is located on the side of the acoustic wave transmission component away from the circuit board, and the side of the windproof cover near the acoustic wave transmission component has a receiving cavity. The acoustic wave transmission device is located inside the receiving cavity. There is a first gap between the side of the acoustic wave transmission device away from the circuit board and the bottom wall of the receiving cavity. There is a second gap between the peripheral wall of the acoustic wave transmission device and the peripheral wall of the receiving cavity. The windproof cover is provided with an air inlet on the side away from the acoustic wave transmission device. The air inlet is connected to the receiving cavity.
10. The acoustic wave acquisition device according to claim 9, characterized in that, Along the axial direction of the sound wave transmission hole, the air inlet penetrates the windproof cover; The diameter of the air inlet gradually increases from the direction the wind shield points toward the sound wave transmission element.