Sound transmission device and electronic apparatus

Abstract

The utility model discloses a sound transmission device and electronic equipment, and belongs to the technical field of electronics. The sound transmission apparatus includes a microphone device and a carrier. The bearing part comprises a side wall and a sound guide structure, the side wall is provided with a first through hole, and the sound guide structure is provided with a first sound guide channel and a second sound guide channel. Wherein the first sound guide channel is provided with a bend, two ends of the first sound guide channel are respectively communicated with the first through hole and a first end of the second sound guide channel, and a second end of the second sound guide channel deviates from the side wall and extends towards the sound inlet side of the microphone device. According to the technical scheme, the microphone device can be better protected, and the windproof effect is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronics, and particularly relates to a sound receiving device and an electronic device. BACKGROUND

[0002] A microphone is a device for converting sound waves into electrical signals. Many electronic devices such as mobile phones, tablet computers and sound systems are provided with microphones. When sound is transmitted to the microphone through the sound inlet hole of the electronic device, the diaphragm of the microphone can vibrate to generate an electrical signal, thereby realizing functions such as calling, recording and voice recognition.

[0003] However, the windproof effect of the sound inlet hole of the current electronic device is poor. When the electronic device is in a strong wind environment, the airflow entering from the sound inlet hole can easily cause the diaphragm of the microphone to be damaged. CONTENT OF THE UTILITY MODEL

[0004] Therefore, the present application provides a sound receiving device and an electronic device, which can better protect the microphone device and improve the windproof effect.

[0005] In a first aspect, the present application provides a sound receiving device, which comprises a microphone device and a bearing member.

[0006] The bearing member comprises a side wall and a sound guide structure, the side wall has a first through hole, and the sound guide structure has a first sound guide channel and a second sound guide channel.

[0007] The first sound guide channel has a bend, and the two ends of the first sound guide channel are in communication with the first through hole and the first end of the second sound guide channel respectively, and the second end of the second sound guide channel extends away from the side wall and towards the sound inlet side of the microphone device.

[0008] Optionally, the first sound guide channel comprises a first sub-channel and a second sub-channel, and the first sub-channel and the second sub-channel form an L shape.

[0009] The first end of the first sub-channel is in communication with the first through hole, and the second end of the first sub-channel is in communication with the first end of the second sub-channel.

[0010] The second end of the second sub-channel is in communication with the first end of the second sound guide channel.

[0011] Optionally, the side wall further has a second through hole, and the second through hole and the first through hole are arranged at intervals.

[0012] The sound guide structure further has a third sound guide channel, the first sound guide channel and the third sound guide channel are respectively located on two sides of the second sound guide channel, the third sound guide channel has a bend, a first end of the third sound guide channel is in communication with the second through hole, and a second end of the third sound guide channel is in communication with the second end of the first sound guide channel and the second sound guide channel respectively.

[0013] Optionally, the third sound guide channel comprises a third sub-channel and a fourth sub-channel, the third sub-channel and the fourth sub-channel form an L shape.

[0014] A first end of the third sub-channel is in communication with the second through hole, and a second end of the third sub-channel is in communication with a first end of the fourth sub-channel.

[0015] A second end of the fourth sub-channel is in communication with a first end of the second sound guide channel.

[0016] Optionally, the second end of the second sub-channel is arranged opposite to the second end of the fourth sub-channel.

[0017] Optionally, a baffle is arranged between the first sub-channel and the third sub-channel, and the baffle is used to separate the first sub-channel and the third sub-channel.

[0018] Optionally, the first sound guide channel and the third sound guide channel are symmetrical about the second sound guide channel.

[0019] Optionally, an inner diameter of the first sound guide channel and an inner diameter of the third sound guide channel are respectively smaller than an inner diameter of the second sound guide channel.

[0020] Optionally, the second sound guide channel comprises a fifth sub-channel and a sixth sub-channel, the fifth sub-channel and the sixth sub-channel form an L shape.

[0021] A first end of the fifth sub-channel is in communication with the second end of the first sound guide channel and the second end of the third sound guide channel respectively, and a second end of the fifth sub-channel is in communication with a first end of the sixth sub-channel.

[0022] A second end of the sixth sub-channel extends away from the fifth sub-channel, and a port of the second end of the sixth sub-channel is aligned with a sound inlet of the microphone device.

[0023] Optionally, the side wall and the sound guide structure are integrally formed.

[0024] In a second aspect, the embodiments of the present application further provide an electronic device, the electronic device comprising the sound collecting device according to any one of the above.

[0025] The sound transmission device provided by the embodiment of the present application comprises a microphone device and a bearing part. Gas can pass through the first through hole on the side wall of the bearing part and the sound guide channel in the sound guide structure in sequence and then reach the microphone device. The sound guide structure comprises a first sound guide channel and a second sound guide channel which are communicated. Since the first sound guide channel is bent, when the gas flow enters the first sound guide channel from the first through hole, the gas flow can rub against the inner wall of the first sound guide channel, so that the energy of the gas flow is gradually attenuated, and then the gas flow is transmitted to the sound inlet side of the microphone device through the second sound guide channel. Since the energy of the gas flow reaching the sound inlet side of the microphone device is low, the damage to the microphone device is reduced, the microphone device can be better protected, and the windproof effect of the bearing part is improved. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0027] Figure 1 is a structural schematic diagram of a sound transmission device provided by the embodiment of the present application;

[0028] Figure 2 is a sectional view schematic diagram of a sound transmission device provided by the embodiment of the present application;

[0029] Figure 3 is a simulation experiment data diagram of the gas flow rate in the sound guide structure of a sound transmission device provided by the embodiment of the present application;

[0030] Figure 4 is a pressure simulation experiment data diagram of the air inlet side of a microphone device in a sound transmission device provided by the embodiment of the present application.

[0031] In the drawings, various marks are respectively:

[0032] 100, microphone device;

[0033] 200, bearing part; 210, side wall; 220, sound guide structure; 230, baffle; 211, first through hole; 212, second through hole; 221, first sound guide channel; 222, second sound guide channel; 223, first sub-channel; 224, second sub-channel; 225, third sound guide channel; 226, third sub-channel; 227, fourth sub-channel; 228, fifth sub-channel; 229, sixth sub-channel.

[0034] The specific embodiments of the present application have been shown by the above drawings, and will be described in more detail hereinafter. These drawings and the written description are not intended to restrict the scope of the present application in any way, but to explain the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative effort belong to the scope of the present application.

[0036] Unless otherwise defined, all technical terms used in the embodiments of the present application have the same meanings as commonly understood by those skilled in the art.

[0037] To make the technical solutions and advantages of the present application clearer, the embodiments of the present application will be described in further detail below with reference to the drawings.

[0038] In combination with Figure 1 and Figure 2 It is shown that the embodiments of the present application provide a sound collecting device, which includes a microphone device 100 and a carrier 200. The carrier 200 includes a side wall 210 and a sound guide structure 220. The side wall 210 has a first through hole 211, and the sound guide structure 220 has a first sound guide channel 221 and a second sound guide channel 222. It should be noted that the carrier 200 in the embodiments of the present application may, for example, be a middle frame or a shell structure in an electronic device.

[0039] The first sound guide channel 221 has a bend, and the two ends of the first sound guide channel 221 are in communication with the first through hole 211 and the first end of the second sound guide channel 222, respectively. The second end of the second sound guide channel 222 extends away from the side wall 210 and towards the sound inlet side of the microphone device 100. In this way, the gas can pass through the first through hole 211 on the side wall 210 of the carrier 200 and the sound guide channel in the sound guide structure 220 in sequence and then reach the microphone device 100. Since the first sound guide channel 221 has a bend, after the airflow enters the first sound guide channel 221 from the first through hole 211, the airflow can rub against the inner wall of the first sound guide channel 221, so that the energy of the airflow gradually attenuates, and then the airflow is transmitted to the sound inlet side of the microphone device 100 through the second sound guide channel 222. Since the energy of the airflow reaching the sound inlet side of the microphone device 100 is low, the damage of the airflow to the microphone device 100 is reduced, so that the microphone device 100 can be better protected, and the windproof effect of the carrier 200 is improved.

[0040] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative effort belong to the scope of the present application.Figures 1 to 4 The various component structures and functions of the sound collecting device provided by the embodiments of the present application are described in more detail.

[0041] In combination with Figure 1 and Figure 2 As shown in FIG. 2, in some embodiments, the first sound guide channel 221 includes a first sub-channel 223 and a second sub-channel 224, and the first sub-channel 223 and the second sub-channel 224 form an L shape. The first end of the first sub-channel 223 is in communication with the first through hole 211, and the second end of the first sub-channel 223 is in communication with the first end of the second sub-channel 224. The second end of the second sub-channel 224 is in communication with the first end of the second sound guide channel 222. It should be noted that, since the first sub-channel 223 and the second sub-channel 224 form an L shape, the airflow flowing in from the first sub-channel 223 can be prevented from directly blowing towards the air inlet side of the microphone device 100 through the second sound guide channel 222, that is, the air inlet side of the microphone can be prevented from being damaged by the airflow with a large energy, thereby better protecting the microphone device 100. Meanwhile, the first sub-channel 223 and the second sub-channel 224 also increase the flow path of the airflow, so that the energy of the airflow is attenuated, thereby improving the windproof effect.

[0042] In combination with Figure 1 and Figure 2 As shown in FIG. 2, in some embodiments, the side wall 210 further has a second through hole 212, and the second through hole 212 and the first through hole 211 are arranged at intervals. The sound guide structure 220 further has a third sound guide channel 225, and the first sound guide channel 221 and the third sound guide channel 225 are respectively located on both sides of the second sound guide channel 222. The third sound guide channel 225 has a bend, the first end of the third sound guide channel 225 is in communication with the second through hole 212, and the second end is in communication with the second end of the first sound guide channel 221 and the second sound guide channel 222, respectively. In some embodiments, the inner diameter of the first sound guide channel 221 and the inner diameter of the third sound guide channel 225 are respectively smaller than the inner diameter of the second sound guide channel 222. In this way, the airflow can be divided and enter the sound guide structure 220 from the first through hole 211 and the second through hole 212, that is, a part of the airflow enters the second sound guide channel 222 from the first sound guide channel 221, and another part enters the second sound guide channel 222 through the third sound guide channel 225, thereby further reducing the energy of the airflow entering the sound guide structure 220, not only better protecting the microphone device 100, but also further improving the windproof effect. Meanwhile, the bent third sound guide channel 225 can also increase the flow path of the airflow, so that the airflow and the third sound guide channel 225 can generate sufficient friction, so that the energy of the airflow is attenuated.

[0043] In combination with Figure 1 and Figure 2As shown, in some embodiments, the third sound guide channel 225 includes a third sub-channel 226 and a fourth sub-channel 227, and the third sub-channel 226 and the fourth sub-channel 227 form an L shape. A first end of the third sub-channel 226 is in communication with the second through hole 212, and a second end of the third sub-channel 226 is in communication with a first end of the fourth sub-channel 227. A second end of the fourth sub-channel 227 is in communication with a first end of the second sound guide channel 222. It should be noted that, since the third sub-channel 226 and the fourth sub-channel 227 form an L shape, the airflow flowing in from the third sub-channel 226 can be prevented from directly blowing towards the air inlet side of the microphone device 100 through the second sound guide channel 222, that is, the air inlet side of the microphone can be prevented from being damaged by the airflow with a large energy, thereby better protecting the microphone device 100. At the same time, the third sub-channel 226 and the fourth sub-channel 227 also increase the flow path of the airflow, so as to attenuate the energy of the airflow, thereby improving the windproof effect.

[0044] In combination with Figure 1 and Figure 2 As shown, in some embodiments, the second end of the second sub-channel 224 is arranged opposite to the second end of the fourth sub-channel 227. In this way, the airflow flowing in the second sub-channel 224 towards the second sound guide channel 222 can collide with the airflow flowing in the fourth sub-channel 227 towards the second sound guide channel 222, thereby further attenuating the energy of the airflow, so as to make the energy of the airflow reaching the air inlet side of the microphone device 100 lower, thereby better protecting the microphone device 100.

[0045] In combination with Figure 1 and Figure 2 As shown, in some embodiments, a baffle wall 230 is arranged between the first sub-channel 223 and the third sub-channel 226, and the baffle wall 230 is used to separate the first sub-channel 223 and the third sub-channel 226. It can be understood that the baffle wall 230 can ensure that the gas in the first sub-channel 223 and the gas in the third sub-channel 226 do not interfere with each other. It should be noted that, generally, when the sound guide structure 220 is manufactured, the baffle wall 230 can be obtained by the following manner: two first sub-channels 223 and third sub-channels 226 with a spacing are arranged on the side surface of a sound guide block towards the inside of the sound guide block, so that the baffle wall 230 is formed between the first sub-channel 223 and the third sub-channel 226. It should be noted that the second sub-channel 224 and the fourth sub-channel 227 are also arranged along one side of the baffle wall 230.

[0046] In combination with Figure 1 and Figure 2As shown, in some embodiments, the first sound guide channel 221 and the third sound guide channel 225 are symmetrical about the second sound guide channel 222. It can be understood that the first sound guide channel 221 and the third sound guide channel 225 constitute a U-shaped channel. In this way, the second sub-channel 224 and the fourth sub-channel 227 have the largest opposite area, so as to ensure that the airflow in the second sub-channel 224 and the airflow in the fourth sub-channel 227 are fully impacted at the first end of the second sound guide channel 222, so that the energy of the airflow is fully attenuated.

[0047] In combination Figure 1 and Figure 2 As shown, in some embodiments, the second sound guide channel 222 includes a fifth sub-channel 228 and a sixth sub-channel 229, and the fifth sub-channel 228 and the sixth sub-channel 229 form an L shape. The first end of the fifth sub-channel 228 is in communication with the second end of the first sound guide channel 221 and the second end of the third sound guide channel 225, respectively, and the second end of the fifth sub-channel 228 is in communication with the first end of the sixth sub-channel 229. The second end of the sixth sub-channel 229 extends away from the fifth sub-channel 228, and the port of the second end of the sixth sub-channel 229 is aligned with the sound inlet of the microphone device 100. In this way, when the gas in the first sound guide channel 221 and the third sound guide channel 225 flows into the second sound guide channel 222, respectively, it can flow to the microphone device 100 in turn through the fifth sub-channel 228 and the sixth sub-channel 229, thereby further increasing the flow path of the gas, causing the gas to rub against the inner wall of the fifth sub-channel 228 and the sixth sub-channel 229, and the energy of the airflow is attenuated, further reducing the damage of the airflow to the microphone device 100, thereby better protecting the microphone device 100 and improving the windproof effect of the carrier 200.

[0048] In combination Figure 1 and Figure 2 As shown, in some embodiments, the side wall 210 and the sound guide structure 220 are integrally formed. In this way, the stability of the sound guide structure 220 and the sound guide structure 220 can be improved.

[0049] The effects of the sound transmission device provided in the embodiments of the present application are described below in combination with simulation experiment data obtained by simulation analysis of the sound transmission device provided in the embodiments of the present application.

[0050] Figure 1Fig. 6 shows a simulation experiment data diagram of the gas flow rate in the sound guide structure 220 of the sound collecting device provided by the embodiment of the present application. According to the simulation analysis, the maximum flow rate in the pipeline of the sound collecting device provided by the embodiment of the present application can be 15.28 m / s. Compared with the sound collecting device with only a single sound collecting channel in the prior art, the gas flow rate can be reduced by 14.2%. That is, the sound collecting device provided by the embodiment of the present application can reduce the gas flow rate into the sound guide structure 220, so that the flow rate energy of the air blown to the air inlet side of the microphone device 100 is low, which can better protect the diaphragm of the microphone device 100 to avoid damage to the microphone device 100, thereby achieving a better windproof effect.

[0051] Figure 2 Figure 3 Figure 4 Fig. 7 shows a simulation experiment data diagram of the pressure on the air inlet side of the microphone device 100 in the sound collecting device provided by the embodiment of the present application. According to the simulation analysis, the maximum pressure on the air inlet side of the microphone device 100 in the sound collecting device provided by the embodiment of the present application is 168 Pa. Compared with the sound collecting device with only a single sound collecting channel in the prior art, the pressure on the air inlet side of the microphone device 100 can be reduced by 16.8%. That is, the sound collecting device provided by the embodiment of the present application can reduce the pressure on the air inlet side of the microphone device 100, thereby avoiding damage to the diaphragm of the microphone device 100, better protecting the microphone device 100, prolonging the service life of the microphone device 100, and also prolonging the service life of the sound collecting device.

[0052] It should be noted that the above experimental data are obtained by simulation of the sound collecting device provided by the embodiment of the present application with one size. The sound collecting device provided by the embodiment of the present application with other sizes can also achieve the effect of reducing the gas flow rate and the gas pressure, which will not be enumerated here.

[0053] On the other hand, the embodiment of the present application also provides an electronic device, which comprises the sound collecting device according to any one of the above embodiments of the present application. It should be noted that the composition and function of the sound collecting device in the electronic device are the same as those of the sound collecting device provided by the above embodiments of the present application, and therefore will not be described here. Since the sound collecting device can attenuate the energy of the external gas flowing to the microphone device 100, the damage of the gas flow to the microphone device 100 is reduced, thereby better protecting the microphone device 100 and improving the windproof effect of the carrier 200, so that the electronic device can still have good performance when using the microphone device 100 in a strong wind environment.

[0054] In the present application, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance. The term "a plurality of" refers to two or more, unless otherwise explicitly limited.

[0055] Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. It is intended that the specification and examples be considered as exemplary only, with a true scope of the application being indicated by the following claims.

[0056] It is to be understood that the application is not limited to the precise construction herein disclosed and shown in the drawings, and that various changes in shape, size and arrangements of parts can be made without departing from the scope of the application as recited in the claims. The scope of the application is only limited by the appended claims.

Claims

1. A sound transmission device, characterized by comprising: The sound collecting device comprises a microphone device (100) and a carrier (200); The carrier (200) comprises a side wall (210) and a sound guide structure (220), the side wall (210) has a first through hole (211), and the sound guide structure (220) has a first sound guide channel (221) and a second sound guide channel (222); The first sound guide channel (221) has a bend, and two ends of the first sound guide channel (221) are in communication with the first through hole (211) and a first end of the second sound guide channel (222) respectively, and a second end of the second sound guide channel (222) extends away from the side wall (210) and towards a sound inlet side of the microphone device (100).

2. The sound receiving device according to claim 1, wherein The first sound guide channel (221) comprises a first sub-channel (223) and a second sub-channel (224), and the first sub-channel (223) and the second sub-channel (224) form an L shape; A first end of the first sub-channel (223) is in communication with the first through hole (211), and a second end of the first sub-channel (223) is in communication with a first end of the second sub-channel (224); A second end of the second sub-channel (224) is in communication with a first end of the second sound guide channel (222).

3. The sound receiving device according to claim 2, wherein The side wall (210) further has a second through hole (212), and the second through hole (212) and the first through hole (211) are arranged at intervals; The sound guide structure (220) further has a third sound guide channel (225), the first sound guide channel (221) and the third sound guide channel (225) are respectively located on two sides of the second sound guide channel (222), the third sound guide channel (225) has a bend, a first end of the third sound guide channel (225) is in communication with the second through hole (212), and a second end thereof is in communication with the second end of the first sound guide channel (221) and the second sound guide channel (222) respectively.

4. The sound receiving device according to claim 3, wherein The third sound guide channel (225) comprises a third sub-channel (226) and a fourth sub-channel (227), and the third sub-channel (226) and the fourth sub-channel (227) form an L shape; A first end of the third sub-channel (226) is in communication with the second through hole (212), and a second end of the third sub-channel (226) is in communication with a first end of the fourth sub-channel (227); A second end of the fourth sub-channel (227) is in communication with a first end of the second sound guide channel (222).

5. The sound receiving device according to claim 4, wherein The second end of the second sub-channel (224) is arranged opposite to the second end of the fourth sub-channel (227).

6. The sound receiving device according to claim 4, wherein The first sub-channel (223) and the third sub-channel (226) have a baffle (230) therebetween, and the baffle (230) is used for separating the first sub-channel (223) and the third sub-channel (226).

7. The sound receiving device according to claim 3, wherein The first sound guide channel (221) and the third sound guide channel (225) are symmetrical about the second sound guide channel (222).

8. The sound receiving device according to claim 3, wherein An inner diameter of the first sound guide channel (221) and an inner diameter of the third sound guide channel (225) are respectively smaller than an inner diameter of the second sound guide channel (222).

9. The sound receiving device according to claim 3, wherein The second sound guide channel (222) comprises a fifth sub-channel (228) and a sixth sub-channel (229), and the fifth sub-channel (228) and the sixth sub-channel (229) form an L shape. A first end of the fifth sub-channel (228) is in communication with a second end of the first sound guide channel (221) and a second end of the third sound guide channel (225) respectively, and a second end of the fifth sub-channel (228) is in communication with a first end of the sixth sub-channel (229). A second end of the sixth sub-channel (229) extends away from the fifth sub-channel (228), and a port of the second end of the sixth sub-channel (229) is aligned with a sound inlet hole of the microphone device (100).

10. The sound receiving device according to claim 1, wherein The side wall (210) and the sound guide structure (220) are integrally formed.

11. An electronic device, comprising: The electronic device comprises the sound receiving device as claimed in any one of claims 1 to 10.

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