Sound cavity structure and communication device

Abstract

Acoustic cavity structure, characterized in that the acoustic cavity structure comprises: a support element, wherein the support element comprises a housing and a front housing, wherein the housing is provided internally with a receiving space for receiving the front housing, and a first sound guide channel is arranged continuously on the front housing; a sound receiving element, wherein the sound receiving element is arranged on the housing on the side of the housing facing away from the front housing; a second sound guide channel arranged on the housing, the second sound guide channel being connected at one end to the first sound guide channel and at the other end to the sound receiving element.

Description

Technical FieldThe present application is applied to the technical field of outdoor communication, and more particularly relates to a sound cavity structure and a communication device.Prior ArtWith the increasing demand for outdoor products, good communication experience in harsh environments can further improve market compliance of products. By optimizing the waterproof and wind-noise suppressing functions, communication experience of products such as radio devices and robust communication devices in heavy wind and rain can be effectively improved, and at the same time, the functional elements of the product itself can be effectively protected.In the prior art, however, filler material is added to the body or a front cavity is divided mainly based on the processing of the functional elements themselves, which cannot only solve the problem of sound quality damage caused by excessive wind noise, cannot meet the requirement for the water-proofness of the product, and is still less suitable for outdoor appliances which must be dust- and water-proof and therefore cannot be processed efficiently thereby.Content of the InventionThis present application provides a sound cavity structure to solve the problem of the excessive wind noise.In order to solve the above technical problems, the first aspect of the present application provides a sound cavity structure including: a support member, the support member including a housing and a front housing, the housing being provided with a receiving space inside for receiving the front housing, and a first sound guide channel being continuously disposed on the front housing; a sound receiving member, the sound receiving member being disposed on the housing on the side of the housing opposite to the front housing; a second sound guide channel disposed on the housing, the second sound guide channel being connected at one end to the first sound guide channel and at the other end to the sound receiving member.The second sound guide channel is a curved groove.The sound cavity structure further comprises a wind sound filter arrangement, wherein the wind sound filter arrangement is snapped onto the housing and the wind sound filter arrangement is connected on one side to the first sound guide channel and on the other side to the second sound guide channel.The wind noise filter arrangement comprises a first filter plate and a second filter plate, wherein both the first filter plate and the second filter plate are provided with a plurality of collecting holes, the first filter plate is snapped onto the housing, and a traffic jam protection net is provided between the first filter plate and the second filter plate.A cavity is formed between the wind noise filter assembly and the housing, the housing being provided with a drain groove connected to the cavity, the end of the drain groove extending to the outside of the front housing.In this case, a connecting plate adapted to the edge of the receiving space is arranged on the front housing in order to connect the front housing to the housing. In this case, a stop plate for stopping against the wind noise filter arrangement is arranged on the wind noise filter arrangement, wherein the stop plate is applied to the front housing, the stop plate is provided with a through hole which is connected to the first sound guide channel, and the stop plate is snapped into the connecting plate.The connecting plate is provided with a locking groove adapted to the stop plate, wherein the stop plate is locked in the locking groove.In this case, a mounting element is arranged on the housing on the side of the housing facing away from the front housing, wherein the mounting element is adapted to the edge of the second sound guide channel, and the sound receiving element is attached to the mounting element.In this case, a watertight element adapted to the edge of the second sound guide channel is arranged on the mounting element.In order to solve the above problems, the present application also provides a communication device, comprising: a sound cavity structure, wherein the sound cavity structure is disposed in the communication device, and the sound cavity structure is one of the above sound cavity structures.The advantageous effects of the present application are as follows: Unlike the prior art, the present application can protect the internal elements of the housing and make the screen of the terminal visible inside the housing by attaching the front housing to the housing. By providing the front housing with a first sound guide duct and the second sound guide duct offset from the first sound guide duct is disposed on the housing, the path of the wind noise from the first sound guide duct to the second sound guide duct is wound, and the air flow velocity of the wind noise is attenuated, which realizes initial filtering of the wind noise, whereby it can be effectively prevented that the wind noise directly acts on the sound receiving element.Brief Description of the DrawingsFIG. 1 is an exploded schematic illustration of the structure of an embodiment of a sound cavity structure according to the present application; FIG. 2 is a schematic sectional view of the structure of an embodiment of a sound cavity structure according to the present application; FIG. 3 is a schematic illustration of the structure of an embodiment of a sound cavity structure according to the present application in another sectional view; FIG. 4 is a schematic diagram showing the structure of an embodiment according to the present application in which a housing is connected to a drain groove; FIG. 5 is a schematic diagram showing the structure of an embodiment of a communication apparatus according to the present application.Detailed DescriptionHereinafter, the technical solutions in the embodiments of the present application will be clearly and fully described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some, and not all, embodiments of the present application. Based on the embodiments in the present application, all other embodiments acquired by a person skilled in the art without any creative works are included in the scope of the present application.Note that, when there is direction indication (such as up, down, left, right, front, rear... ) in the embodiments of the present application, the direction indication is used only to explain the relative positional relationship, the movements, etc. between the components in a certain posture (as shown in the drawing). If the determined position changes, the direction information also changes accordingly.Moreover, when the terms "first", "second", etc. exist in the present application, the terms "first", "second", etc. are used only for descriptive purposes and cannot be understood to indicate or imply their relative meaning, or implicitly specify the amount of technical features indicated. Thus, the features defined by "first", "second" can explicitly or implicitly specify that the present application comprises at least one such feature. Moreover, the technical solutions in various embodiments may be combined with each other, but only on the basis that those skilled in the art are able to realize them, and if the combination of the technical solutions seems conflicting or unavailable, it should be understood that the combination of such technical solutions does not exist and does not fall within the scope of the present application. Reference is now made to Fig. 1. FIG. 1 is an exploded schematic illustration of the structure of an embodiment of a sound cavity structure provided by the present application.The present application provides a sound cavity structure. As shown in FIGS. 1 and 3, the sound cavity structure of this embodiment includes a support member 10, a sound receiving member 20, a first sound guide channel 501, and a second sound guide channel 502. The support element 10 comprises a housing 101 and a front housing 102, wherein the housing 101 is provided on the inside with a receiving space 103 for receiving the front housing and a first sound guide channel 501 is arranged continuously on the front housing 102. The sound receiving element 20 is arranged on the housing 101 on the side of the housing 101 facing away from the front housing 102. A second sound guide channel 502 is arranged on the housing 101, wherein the second sound guide channel 502 is connected at one end to the first sound guide channel 501 and at the other end to the sound receiving element 20.In an optional embodiment, the housing 101 is provided with a receiving space 103 in the interior, wherein the front housing 102 can be mounted in the receiving space 103 of the housing 101. In this case, the front housing 102 can be adhesively bonded to the housing 101 by means of adhesive bonding, or other fastening methods can be used, which are not particularly restricted here. The front housing may be formed in a terminal with a screen of light transmissive material, so that the screen of the terminal is displayed via the front housing 102. In another embodiment, the front housing in a non-screen terminal may be made of the same material as the housing, which is not limited to the present application. Therefore, by mounting the front housing 102 on the housing 101, the internal structure of the housing 101 can be protected and the screen of the terminal mounted inside the housing 101 can be visualized. Here, the sound receiving element 20 may be a microphone or may be provided as needed, and is not particularly limited here.Furthermore, a first sound guide channel 501 is arranged continuously on the front housing 102, a second sound guide channel 502 is arranged on the housing 101, wherein the second sound guide channel 502 is connected at one end to the first sound guide channel 501 and at the other end to the sound receiving element 20. Here, the axes of the first sound guide duct 501 and the second sound guide duct 502 are not on the same straight line, so that the air flow path of the wind noise changes after the wind noise passes through the first sound guide duct 501, thus the wind noise does not directly enter the inside of the second sound guide duct 502, thereby initially reducing the air flow speed. Therefore, the sound receiving member 20 can receive sound via the first sound guide channel 501 and the second sound guide channel 502. That is, after the wind noise has entered the inside of the sound cavity structure through the first sound guide duct 501, the path of the wind noise is wound due to the displacement of the first sound guide duct 501 to the second sound guide duct 502, whereby the air flow velocity of the wind noise is initially attenuated.In the above embodiment, the internal elements of the housing 101 can be protected and the screen of the terminal inside the housing 101 can be visualized by attaching the front housing 102 to the housing 101. By providing the front housing 102 with a first sound guide duct 501 and arranging the second sound guide duct 502 offset from the first sound guide duct 501 on the housing, the path of the wind noise from the first sound guide duct 501 to the second sound guide duct 502 is wound, and the air flow velocity of the wind noise is attenuated, which realizes initial filtering of the wind noise, whereby it can be effectively prevented that the wind noise directly acts on the sound receiving member 20.In an optional embodiment, the second sound guide channel 502 is a curved groove. In particular, the second sound guide channel 502 can be designed as an inverted L-shaped flow channel structure in order to achieve a filtering of the wind noise. Other structures suitable for reducing the air flow speed may also be used, which is not particularly limited in the present application. That is, when the wind noise enters the second sound guide duct 502 through the first sound guide duct 501, the flow path of the air flow before the wind noise enters the sound receiving element 20 changes because the second sound guide duct 502 is a curved groove, thereby attenuating the air flow speed of the wind noise, and the wind noise can be effectively prevented from directly acting on the sound receiving element 20, thus realizing filtering of the wind noise. It should be noted that the opening of one end of the second sound guide duct 502 near the first sound guide duct 501 is larger than the opening of the first sound guide duct 501 and the opening of the other end of the second sound guide duct 502 is larger than the opening of the end of the second sound guide duct 502 near the first sound guide duct 501, so that after the wind noise enters the interior of the sound cavity structure, the pressure of the air flow also decreases with its flow, thereby reducing the energy of the wind noise.In an optional embodiment, as shown in FIGS. 1 and 2, the sound cavity structure further comprises a wind sound filter assembly 40, wherein the wind sound filter assembly 40 is snapped onto the housing 101 and the wind sound filter assembly 40 is connected on one side to the first sound guide duct 501 and on the other side to the second sound guide duct 502. Consequently, after the wind noise has entered the sound cavity via the first sound guide duct 501 of the front housing 102, the wind noise filter assembly 40 can perform primary processing of the wind noise so that the air flow speed and the pressure of the wind noise are initially reduced, and then secondary processing of the wind noise is performed by the second sound guide duct 502 so that the air flow speed of the wind noise is further attenuated, whereby the wind noise can be effectively prevented from directly acting on the sound receiving member 20, thus realizing filtering of the wind noise.In an optional embodiment, as shown in FIG. 1, the wind noise filter assembly 40 includes a first filter plate 401 and a second filter plate 402, wherein each of the first filter plate 401 and the second filter plate 402 is provided with a plurality of collection holes 404, the first filter plate 401 is snapped onto the housing 101, and a anti-jam net 403 is provided between the first filter plate 401 and the second filter plate 402. Therefore, the anti-jam net 403 is integrated between the first filter plate 401 and the second filter plate 402, so that the collecting holes 404 between the first filter plate 401 and the second filter plate 402 are not directly connected, i.e., rigid multi-pore composite material produced by the integration of the anti-jam net 403 between the two filter plates makes the inner pores of this composite material more complex, whereby the wind noise passing through the wind noise filter assembly 40 can be effectively filtered. In addition, the velocity and pressure of the air flow through the wind noise filter assembly 40 may be significantly reduced.In particular, the wind noise filter assembly 40 formed by the integration of the anti-jam net 403 between the first filter plate 401 and the second filter plate 402 may be a rigid porous PC plate (polycarbonate plate) formed by the integration of the anti-jam net 403 between two porous PC plates, the wind noise filter assembly may also be made of other rigid multi-porous composite materials, which are not particularly limited here. That is, the first filter plate 401 and the second filter plate 402 are provided with a plurality of collection holes 404, thereby accelerating the propagation and attenuation of the wind noise in the multi-pore structure of the filter plate, and inside the housing 101, the rigid multi-pore composite material is disposed, which is inexpensive to manufacture and filters the contaminant particles and the like carried by the wind noise due to the integration of a filter mesh therebetween, thereby preventing some fine contaminants from entering the sound cavity structure through the wind noise filter assembly 40 and thus adhering to the sound receiving member 20, causing poor reception of the sound receiving member 20.In an optional embodiment, as shown in FIG. 4, a cavity 80 is formed between the wind noise filter assembly 40 and the housing 101, the housing 101 being provided with a drain groove connected to the cavity 80, the end of the drain groove extending to the outside of the front housing. It will be understood that when the user is outdoors, rain and other weather are inevitably caused, and then after water has entered the cavity 80 between the wind noise filter assembly 40 and the housing 101 through the first sound guide duct 501 and after the water has entered the cavity 80 through the wind noise filter assembly 40, due to the connection of the drain groove 30 to the cavity 80, the water accumulated inside the sound cavity structure can be discharged through the drain groove 30 to prevent the water from being trapped inside the housing 101 for a long period of time, whereby the water accumulates in the sound cavity structure, which deteriorates the sound transmission effect. That is, the housing 101 is provided with a drainage groove 30 whose end extends to the outside of the front housing 102 so that water that has entered the inside of the housing 101 can be discharged from the drainage groove 30, thereby achieving the purpose of drainage.In an optional embodiment, as shown in FIG. 3, a connecting plate 60 adapted to the edge of the receiving space 103 is arranged on the front housing 102 in order to connect the front housing 102 to the housing 101. Consequently, by disposing the connection plate 60 between the housing 101 and the front housing 102, on the one hand, the front housing 102 can be adhered to the housing 101 via the connection plate 60, so that the front housing 102 and the housing 101 are firmly connected, which prevents problems such as dropping or sliding of the front housing 102 when being attached to the housing 101. On the other hand, the connecting plate 60 has some elasticity that can prevent the front housing 102 from colliding with the housing 101 when the front housing 102 is attached to the housing 101, and thereby scratch or break the front housing 102. Here, the connection plate 60 may be an adhesive for the front housing 102, etc., which is not particularly limited here. Further, the connecting plate 60 can seal the drainage groove 30 connected to the accommodation space 103, so that the water accumulated inside the acoustic cavity structure can be discharged from the drainage groove 30, thereby achieving the purpose of drainage.In an optional embodiment, as shown in FIG. 1, a stopper plate 70 for abutting the wind noise filter assembly 40 is disposed on the wind noise filter assembly 40, the stopper plate 70 is mounted on the front housing 102, the stopper plate 70 is provided with a through hole 701 connected to the first sound guide channel 501, and the stopper plate 70 is snapped into the connecting plate 60. It will be appreciated that the stop plate 70 mounted on the front housing 102 is disposed on the wind noise filter assembly 40 such that after assembly of the wind noise filter assembly 40, the stop plate 70 is mounted on the second filter plate 402 of the wind noise filter assembly 40, and the stop plate 70 is clamped by the front housing 102 and the wind noise filter assembly 40, such that the front housing 102 can stop the wind noise filter assembly 40 on the housing 101 via the stop plate 70, preventing the wind noise filter assembly 40 from moving inside the housing 101 and thus creating a gap between the wind noise filter assembly 40 and the second sound guide channel 502, thereby allowing the wind noise to enter the second sound guide channel 502 from the gap, resulting in the sound filter assembly 40 not being able to completely filter the wind noise. Here, the stopper plate 70 is provided with a through hole 701 connected to the first sound guide channel 501 of the front housing 102 so that the wind noise may enter the sound cavity structure through the first sound guide channel 501 and the through hole 701.In an optional embodiment, as shown in FIG. 1, the connecting plate 60 is provided with a locking groove 601 fitted to the stopper plate 70, and the stopper plate 70 is locked in the locking groove 601. When the stopper plate 70 is attached, the stopper plate 70 can be prevented from moving up and down inside the housing 101 by the abutment of the front housing 102 with the stopper plate 70. By providing the connecting plate 60 with a locking groove 601 fitted to the stopper plate 70, the stopper plate 70 can be locked in the locking groove 601 of the connecting plate 60, thereby preventing the stopper plate 70 from sliding leftward and rightward inside the housing 101 and thus the wind noise filter assembly 40 abutting the stopper plate 70 slides inside the housing 101 to form a gap between the wind noise filter assembly 40 and the second sound guide duct 502.In an optional embodiment, as shown in FIG. 3, a mounting element 503 is arranged on the housing 101 on the side of the housing 101 facing away from the front housing 102, wherein the mounting element 503 is adapted to the edge of the second sound guide channel 502, and the sound receiving element 20 is attached to the mounting element 503. Therefore, the sound receiving element 20 can be attached to the housing 101 by means of the mounting element 503, so that the sound receiving element 20 is connected to the second sound guiding channel 502 to facilitate sound transmission to the sound receiving element 20 through the second sound guiding channel 502.In an optional exemplary embodiment, as shown in FIG. 2, a watertight membrane 504 adapted to the edge of the second sound guide channel 502 is arranged on the mounting element 503. Thus, by disposing a waterproof membrane 504 at the connection between the mounting member 503 and the second sound guiding channel 502, when water enters the interior of the second sound guiding channel 502, the waterproof membrane 504 may block the water accumulated in the interior of the second sound guiding channel 502 to prevent the water from entering the interior of the housing 101 through the sound receiving member 20 and the second sound guiding channel 502, thereby causing damage to other components inside the housing 101, so that the sound cavity structure may be suitable for IPX8 scenarios.It should be noted that in assembling the acoustic cavity structure, first the first filter plate 401 and the second filter plate 402 are integrated to form the wind noise filter assembly 40 from a rigid multi-pore composite material. After the wind noise filter assembly is formed from a rigid multi-pore composite material, the wind noise filter assembly 40 is attached to the housing 101 and the stop plate 70 is attached to the second filter plate 402 on the wind noise filter assembly 40. Then, the connection plate 60 is bonded to the front housing 102, and the front housing 102 with the connection plate 60 is bonded to the housing 101. Then, the stopper plate 70 is snapped into the snap slot 601 on the connecting plate 60, thereby completing the assembly of the acoustic cavity structure.In this manner, the present application can result in winding the flow path of the wind noise and weakening the air flow speed of the wind noise, thereby achieving the filtering process of the wind noise by accommodating the front housing 102 in the accommodation space 103 of the housing 101 and arranging a first sound guide duct 501 and a second sound guide duct 502 on the front housing 102 and the housing 101, respectively. By configuring the second sound guide channel 502 as a curved groove, the flow path of the wind noise can be further changed, so that the energy of the wind noise is attenuated. By arranging the wind noise filter arrangement 40 on the housing 101, the wind noise enters the wind noise filter arrangement 40 through the first sound guide channel 501. The wind noise filter assembly 40 may perform primary filtering of the wind noise and transmit the filtered wind noise to the sound receiving element 20 through the second sound guide channel 502. By arranging the wind noise filter assembly 40 such that the anti-jam net 403 is integrated between the two multiple collecting hole filter plates 404, the rigid multi-pore composite material thus formed has a complex inner multi-pore structure on the one hand, which can effectively filter noise, and on the other hand, the contaminants brought by the wind noise can be blocked by the filter net, which effectively prevents poor reception of the sound receiving member 20. By providing the housing 101 with a drainage groove 30, the water entering the acoustic cavity structure can be drained from the inside of the housing 101 via the drainage groove 30, whereby the purpose of waterproofing the acoustic cavity structure can be achieved. By mounting the front housing 102 on the housing 101 by means of the connecting plate 60, the front housing 102 can be firmly connected to the housing 101. As a result, on the one hand, the falling or displacement of the front housing 102 can be prevented. On the other hand, the front housing 102 can be prevented from being scratched or broken. By having a stop plate 70 disposed on the wind noise filter assembly 40, it can abut on the wind noise filter plate, preventing the wind noise filter assembly 40 from moving up and down. By providing the connection plate 60 with a locking groove 601 in which the stopper plate 70 is locked, the stopper plate 70 can be positioned so that the stopper plate 70 can prevent the wind noise filter assembly 40 from sliding horizontally. By arranging a mounting element 503 at one end of the second sound guiding channel 502, the sound receiving element 20 can be attached to the housing 101. By disposing a waterproof membrane 504 at the joint between the mounting member 503 and the second sound guide channel 502, the water accumulated inside the sound cavity structure can be effectively prevented from entering the inside of the housing, thereby causing damage to components.The present application further provides a communication device. As shown in FIG. 5, the communication device 90 includes: a sound cavity structure, wherein the sound cavity structure is disposed in the communication device 90, and the sound cavity structure is a sound cavity structure of any of the above embodiments.The above only represents the embodiments of the present application and does not limit the scope of the present application. Any equivalent structure or process conversion obtained using the contents of the specification and the accompanying drawings of the present application, or the direct or indirect uses in other related technical fields, are all similarly included in the scope of the present application.

Claims

A sound cavity structure, characterized in that the sound cavity structure comprises: a support member, the support member comprising a housing and a front housing, the housing being provided in the interior with a receiving space for receiving the front housing, and a first sound guide channel being continuously arranged on the front housing; a sound receiving member, the sound receiving member being arranged on the housing on the side of the housing facing away from the front housing; a second sound guide channel being arranged on the housing, the second sound guide channel being connected at one end to the first sound guide channel and at the other end to the sound receiving member.Sound cavity structure according to claim 1, characterized in that the second sound guide channel is a curved groove.Sound cavity structure according to claim 1 or 2, characterized in that the sound cavity structure further comprises a wind sound filter arrangement, wherein the wind sound filter arrangement is snapped onto the housing and the wind sound filter arrangement is connected on one side to the first sound guide channel and on the other side to the second sound guide channel.The acoustic cavity structure according to claim 3, characterized in that the wind noise filter assembly comprises a first filter plate and a second filter plate, wherein both the first filter plate and the second filter plate are provided with a plurality of collecting holes, the first filter plate is snapped onto the housing, and a anti-jam net is provided between the first filter plate and the second filter plate.The sound cavity structure according to claim 3, characterized in that a cavity is formed between the wind noise filter assembly and the housing, the housing being provided with a drain groove connected to the cavity, the end of the drain groove extending to the outside of the front housing.Sound cavity structure according to claim 3, characterised in that a connecting plate adapted to the edge of the receiving space is arranged on the front housing in order to connect the front housing to the housing.The acoustic cavity structure according to claim 6, characterized in that a stopper plate for abutting the acoustic wind filter assembly is disposed on the acoustic wind filter assembly, the stopper plate is mounted on the front housing, the stopper plate is provided with a through hole connected to the first acoustic duct, and the stopper plate is snapped in the connecting plate.Sound cavity structure according to claim 7, characterized in that the connecting plate is provided with a locking groove adapted to the stop plate, wherein the stop plate is locked in the locking groove.Sound cavity structure according to claim 3, characterized in that a mounting element is arranged on the housing on the side of the housing facing away from the front housing, wherein the mounting element is adapted to the edge of the second sound guiding channel, and the sound receiving element is attached to the mounting element.Sound cavity structure according to claim 9, characterised in that a watertight membrane adapted to the edge of the second sound guide channel is arranged on the mounting element.A communication device, characterized in that the communication device comprises: a sound cavity structure, wherein the sound cavity structure is arranged in the communication device, and the sound cavity structure is a sound cavity structure according to any one of claims 1-10.

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