Electronic devices

Abstract

The present application discloses an electronic device, including a microphone, a shell, and a vortex splitting structure. The shell is provided with a sound pickup hole that connects the interior of the shell with the outside world, and the microphone is installed inside the shell and receives external sound waves through the sound pickup hole. The vortex splitting structure protrudes from the surface of the shell and is arranged across the opening of the sound pickup hole. The vortex splitting structure includes a plurality of vortex splitting structures arranged at intervals, and there is a gap between two adjacent vortex splitting structures for the vortex to pass through. The electronic device provided by the present application can split and destroy the large vortex formed near the sound pickup hole when it flows through the vortex splitting structure by arranging the vortex splitting structure across the opening of the sound pickup hole, so that the large vortex becomes a small vortex and then falls off and disappears, so as to weaken the sudden change of pressure pulsation, thereby reducing the audible audio component in the pressure pulsation, and further achieving the purpose of suppressing the vortex noise at the sound pickup hole.

Description

[0001] This application is a divisional application of the Chinese patent application submitted to the State Intellectual Property Office on February 20, 2023, with application number 202310183494.0 and application name “Electronic Device”. Technical Field

[0002] The present application relates to the technical field of electronic devices, and more particularly, to an electronic device with a low wind noise frequency function. Background Art

[0003] Microphones are energy conversion devices that convert sound signals into electrical signals. They are important hardware for electronic devices such as headphones, mobile phones, loudspeakers, and smart watches to realize phone calls, amplification, and human-computer interaction. Microphones are usually installed inside the housing of electronic devices. The housing corresponding to the microphone is provided with a sound pickup hole. External sounds enter the electronic device through the sound pickup hole, and are then received by the microphone and converted into signals.

[0004] When a user uses an electronic device such as headphones in a windy outdoor environment, when the airflow passes over the user's head, due to the viscous friction of air molecules, the airflow with a certain speed interacts with the relatively static gas behind the user's head, forming an airflow with vortices in the downstream area of ​​the user's head. These vortices are constantly formed and shed off and disappear. The pressure at the center of each vortex is lower than the pressure of the surrounding medium. Whenever a vortex sheds off and disappears, the turbulent airflow will experience a pressure jump. These pressure jumps propagate outward through the surrounding medium and act on the headphones. When the pressure pulsation in the turbulent airflow contains audible audio components and the intensity is large enough, it will radiate noise to the headphones. This noise is called vortex noise or turbulent noise.

[0005] Eddy current noise will interfere with the microphone's sound pickup effect through the sound pickup hole, thereby affecting the user's experience when making calls or using human-computer interaction functions. However, the noise reduction design of current electronic devices on the market does not have a good solution to the problem of sound signal interference caused by eddy current noise. Summary of the invention

[0006] The purpose of the present application is to provide an electronic device, which can split and destroy the large vortex formed near the sound pickup hole when flowing through the vortex splitting structure by setting a vortex splitting structure across the mouth of the sound pickup hole, so that the large vortex is transformed into a small vortex and then falls off and disappears, so as to weaken the sudden change of pressure pulsation, thereby reducing the audible audio component in the pressure pulsation, and then achieving the purpose of suppressing the vortex noise at the sound pickup hole, thereby avoiding interfering with the sound receiving effect of the microphone.

[0007] The present application provides an electronic device, including a microphone, a housing, and an eddy current splitting structure.

[0008] The shell is provided with a sound pickup hole which connects the interior of the shell with the outside world. The microphone is installed inside the shell and receives external sound waves through the sound pickup hole.

[0009] The vortex splitting structure protrudes from the surface of the shell and straddles the opening of the sound pickup hole. The vortex splitting structure includes a plurality of structures that are spaced apart, and a gap is provided between two adjacent vortex splitting structures for the vortex to pass through.

[0010] When a user uses the electronic device provided by the present application in a windy outdoor scene, after the airflow is blocked by the user's head, a large vortex with a larger size is formed near the user's ear. When the large vortex has not fallen off and disappeared, and flows through the vortex splitting structure at the sound pickup hole, it will be split into multiple small vortices by the vortex splitting structure and enter the gap, or split by the vortex splitting structure into a small vortex in the gap and a medium vortex outside the gap. In either case, the vortices that eventually fall off and disappear in the gap are all small vortices.

[0011] In the related technology, since it does not have a vortex splitting structure, the vortices formed at the sound pickup hole are all large vortices. Compared with the shedding and disappearance of large vortices, the sudden change of pressure pulsation formed when small vortices shed off and disappear is weaker. Therefore, the pressure pulsation contains fewer audible audio components, which reduces the noise that finally enters the sound pickup hole, thereby reducing the interference to the microphone inside the electronic device.

[0012] In summary, the electronic device provided by the present application can split and destroy the large vortex formed near the sound pickup hole when flowing through the vortex splitting structure by installing a vortex splitting structure across the opening of the sound pickup hole, so that the large vortex is transformed into a small vortex and then falls off and disappears, so as to weaken the sudden change of pressure pulsation, thereby reducing the audible audio component in the pressure pulsation, and further achieving the purpose of suppressing the vortex noise at the sound pickup hole, thereby avoiding the vortex noise from interfering with the sound receiving effect of the microphone, so as to enhance the user experience when using the electronic device to make calls or use human-computer interaction functions in windy scenes.

[0013] Optionally, the electronic device may include headphones, smart watches, smart bracelets, smart phones, personal digital assistant computers, tablet computers, laptop computers, car computers, smart glasses, pedometers, walkie-talkies, loudspeakers and other electronic devices with microphones that require noise reduction design.

[0014] Optionally, the microphone may be connected to the sound pickup hole through a sound guide channel, or the microphone may be connected to the sound pickup hole through a sound guide tube.

[0015] Optionally, the vortex splitting structure is arranged across the opening of the sound pickup hole. There are two implementation modes: one is that the vortex splitting structure can be connected to the shell around the opening of the sound pickup hole; the other is that the vortex splitting structure is connected to the inner wall of the sound pickup hole.

[0016] Optionally, the eddy current splitting structure and the shell can be fixedly connected by adhesive bonding, snap-fitting, bolting, etc.; or, the eddy current splitting structure and the shell are directly integrally formed.

[0017] Specifically, the eddy current splitting structure and the shell can be integrally formed by an injection molding process, or integrally formed by a 3D printing technology.

[0018] Optionally, the plurality of vortex splitting structures are grid-shaped as a whole.

[0019] Optionally, the number of vortex splitting structures may be 2-6.

[0020] Optionally, the vortex splitting structure may be streamlined, or non-streamlined, or a combination of streamlined and non-streamlined.

[0021] Optionally, a breathable barrier may be provided in the sound pickup hole.

[0022] Specifically, the air-permeable barrier may be a mesh cloth, a grid, or the like.

[0023] In a possible design, the plurality of vortex splitting structures are overall in the shape of a straight grid.

[0024] Compared with arc-shaped grids or grids of other shapes, the strip-shaped grid-shaped vortex splitting structure is easy to form and process, and can obtain gaps of relatively consistent width, thereby being able to stably form small vortices and avoid strong sudden pressure pulsations.

[0025] In addition, the strip grid-shaped vortex splitting structure can perform the function of a breathable barrier, thereby eliminating the need to design a separate breathable barrier. This makes the vortex splitting structure have a "two-in-one" function, not only reducing vortex noise, but also blocking debris from entering the sound pickup hole.

[0026] In a possible design, the vortex splitting structure includes a windward portion opposite to the airflow flow direction and a leeward portion located at one end away from the windward portion; the windward portion has a windward surface with an arc-shaped curved surface, and the leeward portion has a leeward surface with an arc-shaped curved surface.

[0027] Designing the windward surface of the windward part and the leeward surface of the leeward part as arc-shaped surfaces has two functions: first, the arc-shaped surfaces play a role similar to chamfers, which can prevent the edges and corners of the windward part and the leeward part from scratching the user's hands or damaging clothes; second, it is conducive to reducing the wind resistance of the windward part, avoiding the formation of vortices on the rear side of the windward part, and further enhancing the noise reduction effect.

[0028] In a possible design, the opposite end edges of the windward surface and the leeward surface are smoothly transitioned to the surface of the shell.

[0029] There are no abrupt edges or corners at both ends of the eddy current splitting structure, which improves the user's hand feel and completely avoids scratching the user's hands.

[0030] In a possible design, pointed wind-breaking structures extend from opposite ends of the windward portion and the leeward portion.

[0031] When a large vortex moves toward the sound pickup hole, it will first pass through the wind-breaking structure, which can cut and divert the large vortex, and then split and destroy it by the windward part or the leeward part, making it easier for the vortex splitting structure to split and destroy the large vortex, and the splitting and destruction effect is better.

[0032] In a possible design, the windward portion and the leeward portion extend out from the opening contour line of the sound pickup hole respectively.

[0033] The vortex splitting structure is made to have a sufficiently large coverage area at the pickup hole, and the large vortex is split and destroyed before it approaches the pickup hole, thereby preventing the large vortex from falling off and disappearing at a position closer to the pickup hole and generating pressure pulsations, thereby reducing the impact of vortex noise on the microphone.

[0034] In a possible design, the length of the windward portion extending from the aperture contour line is greater than the length of the leeward portion extending from the aperture contour line.

[0035] In the case of a limited length of the eddy current splitting structure, priority should be given to ensuring that the windward portion has sufficient coverage. Therefore, the extension length of the windward portion is lengthened in a targeted manner, while the extension length of the leeward portion is shortened, so that the eddy current splitting structure can fully function in the face of large eddy current noise, avoiding blindly lengthening the eddy current splitting structure, thereby enabling reasonable use of materials when processing and forming the eddy current splitting structure, thereby reducing material costs.

[0036] In a possible design, in the orthographic projection direction of the sound pickup hole, the coverage rate of the vortex splitting structure on the sound pickup hole is 40-60%.

[0037] It can balance the noise reduction effect of the eddy current split structure and the amount of external sound waves received by the pickup hole, thereby ensuring that the microphone can effectively receive sound under low eddy current noise conditions.

[0038] In a possible design, the height of the vortex splitting structure protruding from the shell surface is 1.5 to 2.5 mm.

[0039] It can balance the splitting and destroying effect of the eddy current splitting structure on large eddies and the hand feel of the user when holding it, and the appearance consistency is relatively good.

[0040] In one possible design, the vortex splitting structure is configured such that when the electronic device is in use (for example, when a user wears the electronic device), the angle between the vortex splitting structure and the horizontal direction is -30 to 30 degrees.

[0041] When the angle between the vortex splitting structure and the airflow flow direction meets the above range, the vortex splitting structure can play the role of splitting and destroying large vortices. This makes the position of the vortex splitting structure on the electronic device have a certain deflection margin, thereby having a certain design optimization space in the structural design stage. For example, the vortex splitting structure can avoid other components when it is deflected.

[0042] In a possible design, the width of the vortex splitting structure is 2 to 3 mm.

[0043] The eddy current splitting structure is within the above width range and can avoid cutting the user's hands.

[0044] In a possible design, the length of the vortex splitting structure is 6-10 mm.

[0045] This can ensure that the eddy current splitting structure has sufficient coverage.

[0046] In a possible design, the width of the gap between two adjacent vortex splitting structures is 1 to 3 mm.

[0047] When the small eddies within the gap width fall off and disappear, the resulting pressure pulsation has a weaker mutation and contains less noise.

[0048] In a possible design, chamfers are provided on both side edges of the windward surface and the leeward surface.

[0049] This makes the surface corners of the eddy current splitting structure smooth, which can further avoid scratching the user's hands or damaging clothes.

[0050] In a possible design, the widths of the gaps between two adjacent vortex splitting structures are equal.

[0051] Gaps of equal width can stably form small vortices and avoid strong and sudden pressure pulsations.

[0052] In one possible design, the electronic device is a wearable electronic device.

[0053] In one possible design, the electronic device is an earphone having an earphone handle for a user to hold, and the sound pickup hole is located on a side surface of the earphone handle away from a cheek of the user.

[0054] In a possible design, the vortex splitting structure is inclined relative to the extension direction of the earphone handle, and the angle between the vortex splitting structure and the extension direction of the earphone handle is 50 to 80 degrees.

[0055] In order to compensate for the tilt of the vortex splitting structure caused by wearing the earphones, the vortex splitting structure is tilted relative to the surface of the earphone handle. In this way, the vortex splitting structure is horizontal as a whole when in use, that is, parallel to the incoming wind direction, and can achieve the best splitting and destroying effect on large vortices.

[0056] In a possible design, the surface of the earphone handle is an arc-shaped surface, so that the user has a better hand feel.

[0057] In a possible design, the electronic device may be headphones, glasses, or a mobile phone.

[0058] When a user uses the mobile phone provided by the present application in a windy outdoor scene, after the airflow is blocked by the user's hand or the shell of the mobile phone, a large vortex with a larger size is formed near the sound pickup hole of the mobile phone. When the large vortex has not yet fallen off and disappeared, and flows through the vortex splitting structure at the sound pickup hole, it will be split into multiple small vortices by the vortex splitting structure and enter the gap. The small vortices fall off and disappear, which can weaken the sudden change of pressure pulsation, thereby reducing the audible audio component in the pressure pulsation, and then achieve the purpose of suppressing the vortex noise at the sound pickup hole, thereby avoiding the vortex noise from interfering with the microphone's sound reception effect, so as to improve the user experience when using the mobile phone to make calls or use human-computer interaction functions in windy scenes. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] Figure 1 is a schematic diagram of a headset in the related art;

[0060] Figure 2 This is a schematic diagram of a user using headphones in a windy scene;

[0061] Figure 3 yes Figure 2 The enlarged view of point A in the middle;

[0062] Figure 4is a schematic diagram of an example of an earphone provided in an embodiment of the present application;

[0063] Figure 5 is a control principle diagram of the earphone provided in an embodiment of the present application;

[0064] Figure 6 is a schematic diagram of a user using the headset provided by an embodiment of the present application in a windy scene;

[0065] Figure 7 yes Figure 6 The enlarged view of point B in the middle;

[0066] Figure 8 yes Figure 7 Enlarged view of point C in the middle;

[0067] Fig. 9 is a schematic diagram of another example of an earphone provided in an embodiment of the present application;

[0068] Fig.10 is a schematic diagram of another example of an earphone provided in an embodiment of the present application;

[0069] Fig.11 is a schematic diagram of an example of a vortex splitting structure provided in an embodiment of the present application;

[0070] Fig.12 is a schematic diagram of another example of the eddy current splitting structure provided in an embodiment of the present application;

[0071] Fig.13 is a schematic diagram of another example of the eddy current splitting structure provided in an embodiment of the present application;

[0072] Fig.14 is a schematic diagram of another example of an earphone provided in an embodiment of the present application;

[0073] Fig.15 yes Fig.14 The enlarged view of point D in the middle;

[0074] Fig.16 yes Figure 4 A schematic diagram of another perspective of the headphones;

[0075] Fig.17 yes Fig.16 An enlarged view of an example at E in the middle;

[0076] Fig.18 is a cross-sectional view of an earphone provided in an embodiment of the present application;

[0077] Fig.19 yes Fig.18 The enlarged view of F in the middle;

[0078] Fig. 20 yes Fig.16An enlarged view of another example at E in the middle;

[0079] Fig.21 yes Figure 6 A left view of a user using the headset provided by an embodiment of the present application in a windy scene;

[0080] Fig. 22 yes Fig.21 Enlarged view of G in the middle;

[0081] Fig.23 yes Figure 6 A top view of a user using the headset provided by an embodiment of the present application in a windy scene;

[0082] Fig.24 yes Fig.23 Comparison chart of experimental results of eddy current noise experiment of headphones in the figure;

[0083] Fig.25 is a schematic diagram of a mobile phone provided in an embodiment of the present application;

[0084] Fig.26 yes Fig.25 Enlarged view of point I in the middle.

[0085] Reference numerals:

[0086] 10. Shell; 11. Sound pickup hole; 111. Hole opening outline;

[0087] 20. vortex splitting structure; 21. windward part; 211. windward surface; 212. wind-breaking structure; 22. leeward part; 221. leeward surface; 23. chamfer;

[0088] 30, microphone; 40, gap; 50, airflow; 51, vortex; 52, large vortex; 53, medium vortex; 54, small vortex; 60, earphone handle;

[0089] 100. Earphone; 101. Processor; 102. Memory; 103. Wireless communication module; 104. Battery; 105. Sensor module; 106. Speaker; 107. Vibration motor; 200. Mobile phone. DETAILED DESCRIPTION

[0090] The following is an exemplary introduction to the relevant contents that may be involved in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments.

[0091] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0092] In the description of the present application, it should be understood that the terms "upper", "lower", "side", "inside", "outside", "top", "bottom", etc. indicate orientations or positional relationships based on the installation, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0093] It should also be noted that, in the embodiments of the present application, the same figure mark is used to represent the same component or the same part. For the same parts in the embodiments of the present application, the figure may only mark one of the parts or parts as an example. It should be understood that the figure mark also applies to other identical parts or parts.

[0094] In the description of this application, it should be noted that the term "and / or" is merely a description of the association relationship between associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone.

[0095] Microphones are important hardware for electronic devices such as headphones, mobile phones, loudspeakers, smart watches, etc. to realize call, sound amplification and human-computer interaction functions. Figure 1 is a schematic diagram of an earphone 100 in the related art, such as Figure 1 As shown, taking the headset 100 as an example, the microphone 30 ( Figure 1 The microphone 30 is usually installed inside the shell 10 of the headset 100. A sound pickup hole 11 is provided at the portion of the shell 10 corresponding to the microphone 30. External sounds such as the user's call content and voice commands enter the headset 100 through the sound pickup hole 11 and are then received by the microphone 30 for signal conversion.

[0096] Figure 2 is a schematic diagram of a user using the headset 100 in a windy scene. Figure 3 yes Figure 2 The enlarged view of A in the figure. Figure 2 , Figure 3As shown, when the user uses the headset 100 outdoors in a windy scene, the airflow 50 will form one or more vortices 51 near the ear after being blocked by the user's head. Whenever a vortex 51 falls off and disappears, the turbulent airflow will experience a pressure jump. These jumps in pressure propagate outward through the surrounding medium and act on the housing 10 of the headset 100. When the pressure pulsation in the turbulent airflow contains audible audio components and the intensity is large enough, the radiated noise will be transmitted into the sound pickup hole 11, which will interfere with the sound pickup effect of the microphone 30, and thus greatly affect the user's experience when making calls or using human-computer interaction functions.

[0097] In order to solve the above technical problems, the present application provides an electronic device, which, by setting a vortex splitting structure across the opening of the sound pickup hole 11, can split and destroy the large vortex formed near the sound pickup hole 11 when flowing through the vortex splitting structure, so that the large vortex is transformed into a small vortex and then falls off and disappears, so as to weaken the sudden change of pressure pulsation, thereby reducing the audible audio component in the pressure pulsation, and further achieving the purpose of suppressing the vortex noise at the sound pickup hole 11, thereby avoiding interfering with the sound reception effect of the microphone.

[0098] Among them, the electronic device provided in the embodiment of the present application may also be referred to as a mobile device, a terminal device, a mobile terminal or a terminal. The electronic device includes but is not limited to a handheld device, a vehicle-mounted device, a wearable device, a computing device or other processing device connected to a wireless modem. For example, the electronic device may include an earphone 100 (earphone), a smart watch (smart watch), a smart wristband (smart wristband), a smart phone 200 (smartphone), a personal digital assistant (PDA) computer, a tablet computer, a laptop computer (laptop computer), a vehicle-mounted computer, smart glasses (smart glasses), a pedometer (pedometer), a two-way radio (two way radio) and other electronic devices with a microphone 30 and requiring a noise reduction design.

[0099] In order to more conveniently explain the electronic device provided by the embodiment of the present application, as an example rather than a limitation, the following will take the electronic device being a headset 100 as an example to explain in detail the technical solution of the present application.

[0100] Figure 4 It is a schematic diagram of an example of the earphone 100 provided in an embodiment of the present application. Figure 5 1 is a control principle diagram of the earphone 100 provided in an embodiment of the present application.

[0101] like Figure 4 , Figure 5As shown, in the earphone 100 in the embodiment of the present application, the housing 10 (i.e., the inner cavity of the earphone 100) has a processor 101, a memory 102, a wireless communication module 103, a battery 104, a microphone 30, a sensor module 105, and a speaker 106. The processor 101 may include one or more interfaces for electrically connecting with other electronic components of the earphone 100.

[0102] The memory 102 can be used to store program codes, such as program codes for charging the headset 100, wirelessly pairing the headset 100 with other electronic devices (such as the mobile phone 200), or wirelessly communicating with other electronic devices.

[0103] The processor 101 can be used to execute the above application code and call related modules to implement various functions of the headset 100 in the embodiment of the present application. For example, the charging function, wireless communication function and audio data playback function of the headset 100 are implemented. The processor 101 may include one or more processing units, and different processing units may be independent devices or integrated in one or more processors 101. The processor 101 may specifically be an integrated control chip, or may be composed of a circuit including various active and / or passive components, and the circuit is configured to perform the functions belonging to the processor 101 described in the embodiment of the present application.

[0104] Optionally, the processor 101 may be disposed on a mainboard, which may be a printed circuit board (PCB) or the like, but is not limited thereto.

[0105] The wireless communication module 103 is used to realize wireless communication between the headset 100 and other communication devices (such as mobile phone 200). For example, the headset 100 can communicate with other electronic devices through Bluetooth (BT), wireless fidelity (Wi-Fi) network, global navigation satellite system (GNSS), frequency modulation (FM), near field communication (NFC), infrared (IR), etc., but not limited to this. In some embodiments, the wireless communication module 103 can be a Bluetooth chip. The headset 100 can be paired with the Bluetooth chip of other electronic devices (such as mobile phone 200) through the Bluetooth chip and establish a wireless connection to realize wireless communication between the headset and other electronic devices through the wireless connection.

[0106] The battery 104 is used to store electric energy charged from the outside and to supply power to other power-consuming modules to drive them to work (for example, drive the speaker 106 to make sound). The battery 104 can be any one of a nickel-cadmium battery, a lithium battery, etc., but is not limited thereto.

[0107] The earphone provided in the embodiment of the present application further includes a sensor module 105. The sensor module 105 includes one or more sensors.

[0108] For example, the sensor module 105 also includes a distance sensor or a proximity light sensor for determining whether the headset is worn by the user, a touch sensor for detecting the user's touch operation, a fingerprint sensor for detecting the user's fingerprint to identify the user, an acceleration sensor or a gyroscope for detecting the user's motion state, etc., but is not limited to these.

[0109] The speaker 106 is also called a horn or an audio unit, and is a commonly used electroacoustic transducer. The main working principle of the speaker 106 is to use an energized element to drive the diaphragm to produce mechanical vibrations, and push the surrounding air, so that the air medium produces fluctuations to achieve the "electricity-force-sound" conversion.

[0110] Optionally, the speaker 106 in the embodiment of the present application can be any type of dynamic speaker (or electric speaker), moving iron speaker, dynamic iron hybrid speaker, electromagnetic speaker, inductive speaker, electrostatic speaker, planar speaker, ribbon speaker, planar magnetic speaker and MEMS speaker.

[0111] Optionally, a vibration motor 107 is also disposed in the inner cavity of the earphone 100 .

[0112] The vibration motor 107 can generate vibration prompts. The vibration motor 107 can be used for incoming call vibration prompts, and can also be used for touch vibration feedback. For example, touch operations acting on different applications (such as audio playback, etc.) can correspond to different vibration feedback effects. Different application scenarios (such as time reminders, receiving messages, alarm clocks, etc.) can also correspond to different vibration feedback effects. The touch vibration feedback effect can also support customization.

[0113] Optionally, the vibration motor 107 may be a rotor motor or a linear motor.

[0114] It should be noted that the hardware functional components of the above-mentioned earphones 100 can be changed according to user needs. It can be understood that the specific embodiment introduced above is only a specific implementation method of the present application. Other ways to implement the solution of the present application are also within the scope of protection of the present application and will not be elaborated here.

[0115] like Figure 4As shown, an earphone 100 provided in an embodiment of the present application includes a microphone 30 ( Figure 4 ), the housing 10 and the vortex splitting structure 20.

[0116] The housing 10 is provided with a sound pickup hole 11 connecting the interior of the housing 10 with the outside. The microphone 30 is installed inside the housing 10 and receives external sound waves through the sound pickup hole 11 .

[0117] The vortex splitting structure 20 protrudes from the surface of the housing 10 and straddles the opening of the sound pickup hole 11 . The vortex splitting structure 20 includes a plurality of vortex splitting structures 20 that are spaced apart from each other, and a gap 40 for the vortex to pass through is provided between two adjacent vortex splitting structures 20 .

[0118] Figure 6 This is a schematic diagram of a user using the earphone 100 provided in an embodiment of the present application in a windy scene. Figure 7 yes Figure 6 Enlarged view of point B in the middle. Figure 8 yes Figure 7 Enlarged view of point C in the middle.

[0119] like Figure 6 and Figure 7 As shown, when a user uses the earphone 100 provided by the embodiment of the present application in a windy outdoor scene, the airflow 50 is blocked by the user's head and forms a large vortex 52 of larger size near the user's ear, as shown in FIG. Figure 8 As shown, when the large vortex 52 has not fallen off and disappeared, and flows through the vortex splitting structure 20 at the sound pickup hole 11, it will be split by the vortex splitting structure 20 into multiple small vortices 54 and enter the gap 40, or split by the vortex splitting structure 20 into small vortices 54 located in the gap 40 and medium vortices 53 located outside the gap 40. In either case, the vortices that eventually fall off and disappear in the gap 40 are all small vortices 54.

[0120] In the related art, since it does not have a vortex splitting structure 20, the vortices formed at the sound pickup hole 11 are all large vortices 52. Compared with the shedding and disappearance of the large vortex 52, the sudden change of the pressure pulsation formed when the small vortex 54 shedding and disappearing is weaker, so the pressure pulsation contains less audible audio frequency components, which reduces the noise that finally enters the sound pickup hole 11, thereby reducing the interference with the microphone 30 inside the earphone 100.

[0121] In summary, the earphone 100 provided in the embodiment of the present application, by providing a vortex splitting structure 20 across the orifice of the sound pickup hole 11, can split and destroy the large vortex 52 formed near the sound pickup hole 11 when flowing through the vortex splitting structure 20, so that the large vortex 52 is transformed into a small vortex 54 and then falls off and disappears, so as to weaken the sudden change of pressure pulsation, thereby reducing the audible audio component in the pressure pulsation, and further achieving the purpose of suppressing the vortex noise at the sound pickup hole 11, thereby avoiding the vortex noise from interfering with the sound receiving effect of the microphone 30, so as to improve the user experience when using the earphone 100 to make calls or use the human-computer interaction function in windy scenes.

[0122] Optionally, depending on the transducer principle of the microphone 30, the microphone 30 in the embodiment of the present application can be an electric microphone (dynamic coil, aluminum ribbon) , a condenser microphone, a piezoelectric (crystal, ceramic) microphone, an electromagnetic microphone, a semiconductor microphone, etc., and can also be any type of cardioid microphone, acute cardioid microphone, supercardioid microphone, bidirectional (figure 8) microphone, non-directional (omnidirectional) microphone, micro-electromechanical system microphone, etc.

[0123] Optionally, the microphone 30 is installed inside the shell 10 and receives external sound waves through the sound pickup hole 11. The microphone 30 can be connected to the sound pickup hole 11 through a sound guide channel, or the microphone 30 can be connected to the sound pickup hole 11 through a sound guide tube.

[0124] Optionally, the vortex splitting structure 20 is arranged across the opening of the sound pickup hole 11. There are two implementation modes: one is that the vortex splitting structure 20 can be connected to the shell 10 around the opening of the sound pickup hole 11; the other is that the vortex splitting structure 20 is connected to the inner wall of the sound pickup hole 11.

[0125] Optionally, the eddy current splitting structure 20 and the shell 10 may be fixedly connected by adhesive bonding, snap-fitting, bolting, etc.; or, the eddy current splitting structure 20 and the shell 10 may be directly integrally formed.

[0126] Specifically, the eddy current splitting structure 20 and the housing 10 are directly integrally formed, and may be integrally formed through an injection molding process, or may be integrally formed through a 3D printing technology.

[0127] Optionally, the material of the vortex splitting structure 20 includes but is not limited to polyvinyl chloride (PVC), polypropylene (PP), polyethylene glycolterephthalate (PET), ethylene-vinyl acetate copolymer (EVA), polybutylene terephthalate (PBT), polycarbonate (PC), paraformaldehyde (POM), and polyurethane (PU).

[0128] Optionally, the plurality of vortex splitting structures 20 are in a grid shape as a whole.

[0129] Fig. 9 is a schematic diagram of another example of the earphone 100 provided in an embodiment of the present application. Fig. 9 As shown, the plurality of vortex splitting structures 20 are in an arc-shaped grid shape as a whole.

[0130] Optionally, the number of the vortex splitting structures 20 may be 2-6.

[0131] Fig.10 is a schematic diagram of another example of the earphone 100 provided in an embodiment of the present application. Fig.10 As shown, the number of vortex splitting structures 20 may be two, and one gap 40 is formed.

[0132] For example, Figure 4 As shown, the number of the vortex splitting structures 20 may be three, and two gaps 40 are formed.

[0133] Optionally, the vortex splitting structure 20 may be streamlined, or non-streamlined, or a combination of streamlined and non-streamlined. For a more detailed description, please refer to the following embodiments.

[0134] Optionally, the cross-sectional shape of the eddy current splitting structure 20 may be a square, a rectangle, a trapezoid, a parallelogram, etc. In other embodiments, the cross-sectional shape of the eddy current splitting structure 20 is generally not set to a shape with sharp edges such as a triangle, so as to avoid the eddy current splitting structure 20 presenting a "knife edge" effect and cutting the user's hand.

[0135] Optionally, a breathable barrier may be provided in the sound pickup hole 11 .

[0136] Specifically, the breathable barrier is mainly used to prevent debris in the environment from entering the sound pickup hole 11 and then falling into the sound guide channel, which can effectively protect the sound guide channel and the microphone 30.

[0137] Alternatively, the breathable barrier may be a mesh, a grille, or the like.

[0138] As mentioned above, the plurality of vortex splitting structures 20 are in a grid shape as a whole. In addition to the aforementioned plurality of vortex splitting structures 20 being in an arc-shaped grid shape as a whole, it can also be as in an embodiment provided in the present application, such as Figure 4 As shown, the plurality of vortex splitting structures 20 are in the shape of a straight grid as a whole.

[0139] It should be noted that the multiple vortex splitting structures 20 are in a straight grid shape as a whole, which means that the multiple vortex splitting structures 20 are arranged in a straight grid shape at the opening of the sound pickup hole 11 with the orthographic projection direction of the sound pickup hole 11 as the viewing direction.

[0140] The specific shape of the vortex splitting structure 20 is further limited in this embodiment. Compared with arc-shaped grids or grids of other shapes, the strip-shaped grid-shaped vortex splitting structure 20 is easy to form and process, and can obtain a gap 40 with a relatively consistent width, thereby being able to stably form small vortices 54 and avoid strong sudden pressure pulsations.

[0141] In addition, as mentioned above, a breathable barrier for preventing debris in the environment from entering the sound pickup hole 11 can also be provided in the sound pickup hole 11, and the breathable barrier can be a mesh cloth, a grille, etc. In this embodiment, the strip-shaped grille-shaped vortex splitting structure 20 can perform the function of a breathable barrier, and thus there is no need to design a separate breathable barrier. This makes the vortex splitting structure 20 in this embodiment have a "one piece, two uses" function, not only reducing the vortex noise, but also preventing debris from entering the sound pickup hole 11.

[0142] Fig.11 It is a schematic diagram of an example of the vortex splitting structure 20 provided in an embodiment of the present application. Fig.12 It is a schematic diagram of another example of the vortex splitting structure 20 provided in an embodiment of the present application.

[0143] The vortex splitting structure 20 includes a windward portion 21 opposite to the flow direction of the airflow 50 and a leeward portion 22 located at an end away from the windward portion 21 .

[0144] As mentioned above, the vortex splitting structure 20 may be non-streamlined, for example, Fig.11 As shown, the windward portion 21 and the leeward portion 22 are both in the shape of right edges and corners.

[0145] like Fig.12As shown, in an embodiment provided in the present application, the windward portion 21 has a windward surface 211 which is an arc-shaped curved surface, and the leeward portion 22 has a leeward surface 221 which is an arc-shaped curved surface.

[0146] In this embodiment, the windward surface 211 of the windward portion 21 and the leeward surface 221 of the leeward portion 22 are designed to be arc-shaped surfaces, which have two functions: first, the arc-shaped surfaces play a role similar to chamfers, which can prevent the edges and corners of the windward portion 21 and the leeward portion 22 from scratching the user's hands or damaging clothes; second, it is beneficial to reduce the wind resistance of the windward portion 21, avoid the formation of vortices on the rear side of the windward portion 21, and further enhance the noise reduction effect.

[0147] In addition, when the user uses the earphones 100 outdoors, the directions of the wind are complex and varied. When the wind blows from the user's back, the leeward portion 22 will be opposite to the flow direction of the airflow 50. Therefore, the leeward surface 221 of the leeward portion 22 needs to be designed as an arc-shaped surface. That is, in this embodiment, the leeward portion 22 also has an arc-shaped leeward surface 221. When the wind blows from the user's back, it is beneficial to reduce the wind resistance of the leeward portion 22 and avoid the formation of vortices.

[0148] Fig.13 It is a schematic diagram of another example of the vortex splitting structure 20 provided in an embodiment of the present application.

[0149] like Fig.13 As shown, in an embodiment provided in the present application, the edges at both ends of the windward surface 211 and the leeward surface 221 facing each other are smoothly transitioned to the surface of the shell 10 .

[0150] In this embodiment, in order to maximize the streamlined effect of the vortex splitting structure 20, the curved windward surface 211 and the leeward surface 221 are smoothly transitioned and connected with the surface of the shell 10, thereby avoiding the appearance of wind-blocking facades at both ends of the vortex splitting structure 20, further reducing wind resistance, and avoiding the formation of vortices. In addition, both ends of the vortex splitting structure 20 are streamlined, which can adapt to complex and diverse outdoor environments, so that the noise reduction effect of the earphone 100 is not limited by the direction of the wind. In addition, there are no abrupt edges and corners at both ends of the vortex splitting structure 20, which improves the user's feel and completely avoids scratching the user's hands.

[0151] Fig.14 is a schematic diagram of another example of the earphone 100 provided in an embodiment of the present application. Fig.15 yes Fig.14 Enlarged view of point D in the middle.

[0152] like Fig.14 and Fig.15 As shown, in one embodiment provided in the present application, pointed wind-breaking structures 212 extend from opposite ends of the windward portion 21 and the leeward portion 22 .

[0153] In the present embodiment, the windward portion 21 and the leeward portion 22 extend out a pointed wind-breaking structure 212. When the large vortex 52 moves toward the sound pickup hole 11, it will first pass through the wind-breaking structure 212. The wind-breaking structure 212 can cut and divert the large vortex 52, and then the windward portion 21 or the leeward portion 22 will split and destroy it. Compared with the vortex splitting structure 20 without the wind-breaking structure 212, the vortex splitting structure 20 in the present embodiment is easier to split and destroy the large vortex 52, and the splitting and destruction effect is better.

[0154] like Fig.14 and Fig.15 As shown, in an embodiment provided in the present application, the windward portion 21 and the leeward portion 22 extend out from the hole outline 111 of the sound pickup hole 11 respectively.

[0155] In this embodiment, the windward portion 21 and the leeward portion 22 extend out from the hole contour line 111 of the sound pickup hole 11 respectively, so that the vortex splitting structure 20 has a sufficiently large coverage area at the sound pickup hole 11, and the large vortex 52 is split and destroyed before it approaches the sound pickup hole 11, thereby avoiding the large vortex 52 from falling off and disappearing at a position closer to the sound pickup hole 11 and generating pressure pulsation, thereby reducing the influence of vortex noise on the microphone 30.

[0156] Optionally, the length d1 of the windward portion 21 extending from the aperture contour line 111 may be greater than or equal to the length d2 of the leeward portion 22 extending from the aperture contour line 111 .

[0157] like Fig.15 As shown, in one embodiment provided in the present application, the length d1 of the windward portion 21 extending from the orifice contour line 111 is greater than the length d2 of the leeward portion 22 extending from the orifice contour line 111 .

[0158] According to the experience of using ordinary headphones, under the same wind speed outdoors, when the user moves against the airflow 50 of the wind, the eddy noise felt is greater, and when the user moves along the airflow 50 of the wind, the eddy noise felt is smaller. This is due to the change in relative speed between the airflow 50 and the user. For example, when the wind speed is V1 and the user's moving speed is V2, when the user moves against the airflow 50 of the wind, the speed of the airflow 50 relative to the user's speed is V1+V2, and the eddy current formed thereby is larger, and the sudden change in pressure pulsation is stronger, and the eddy current noise that appears is greater; and when the user moves along the airflow 50 of the wind, the speed of the airflow 50 relative to the user's speed is V1-V2, and the eddy current formed thereby is smaller, and the sudden change in pressure pulsation is weaker, and the eddy current noise that appears is relatively smaller.

[0159] Therefore, when the length of the vortex splitting structure 20 is limited, priority should be given to ensuring that the windward portion 21 has sufficient coverage. That is, in this embodiment, the length relationship between the windward portion 21 and the leeward portion 22 extending out of the orifice contour line 111 is further limited, that is, d1>d2.

[0160] In the present embodiment, the extension length d1 of the windward portion 21 is lengthened and the extension length d2 of the leeward portion 22 is shortened in a targeted manner, so that the vortex splitting structure 20 can fully function in the face of larger vortex noise, avoiding blindly lengthening the vortex splitting structure 20, so that materials can be reasonably used when processing and forming the vortex splitting structure 20, thereby reducing material costs.

[0161] Fig.16 yes Figure 4 Schematic diagram of another perspective of the earphone 100. Fig.17 yes Fig.16 An enlarged view of an example at E in the middle.

[0162] like Fig.16 and Fig.17 As shown, in one embodiment provided in the present application, in the orthographic projection direction of the sound pickup hole 11 , the coverage rate of the vortex splitting structure 20 for the sound pickup hole 11 is 40-60%.

[0163] by Fig.17 Taking the vortex splitting structure 20 shown in as an example, if the opening area of ​​the sound pickup hole 11 is S, in the direction of the direct projection of the sound pickup hole 11, the opening coverage areas of the three vortex splitting structures 20 on the sound pickup hole 11 are S1, S2 and S3 respectively, then the opening coverage rate of the vortex splitting structure 20 for the sound pickup hole 11 is: (S1+S2+S3) / S×100%=40~60%.

[0164] Since the vortex splitting structure 20 in the present application is arranged across the opening of the sound pickup hole 11, it can destroy the large vortex 52 and form a noise reduction effect. However, such a design will cause the vortex splitting structure 20 to block the sound pickup hole 11. When the vortex splitting structure 20 blocks too much of the opening of the sound pickup hole 11, it will affect the entry of effective sound waves from the outside, forcing the most basic sound receiving function of the microphone 30 to be affected.

[0165] Therefore, in order to solve the above problems, the present embodiment limits the coverage rate of the vortex splitting structure 20 for the sound pickup hole 11. When the coverage rate is 40-60%, it can balance the noise reduction effect of the vortex splitting structure 20 and the amount of external sound waves received by the sound pickup hole 11, thereby ensuring that the microphone 30 can effectively receive sound under low vortex noise conditions.

[0166] In an embodiment provided in the present application, when the eddy current splitting structure 20 has a 50% coverage rate for the sound pickup hole 11, it can not only effectively reduce the eddy current noise, but also allow a sufficient amount of external sound waves to enter the sound pickup hole 11 and be received by the microphone 30, so that the microphone 30 can have the best sound reception effect.

[0167] Fig.18 is a cross-sectional view of the earphone 100 provided in an embodiment of the present application. Fig.19 yes Fig.18 Enlarged view of point F in the middle.

[0168] like Fig.18 and Fig.19 As shown, in one embodiment provided in the present application, the height H of the vortex splitting structure 20 protruding from the surface of the housing 10 is 1.5 to 2.5 mm.

[0169] The protruding height H of the vortex splitting structure 20 is related to the splitting and destroying effect of the vortex 51. If the protruding height H is too small, the vortex splitting structure 20 will not be easy to extend into the interior of the large vortex 52, and thus the large vortex 52 cannot be completely disassembled into small vortices 54. If the protruding height H of the vortex splitting structure 20 is too large, it will affect the appearance consistency of the earphone 100, and a vortex splitting structure 20 that is too protruding will also cause the user to feel abrupt when pinching it, thereby affecting the user's holding feel.

[0170] Therefore, in this embodiment, the height H of the vortex splitting structure 20 protruding from the surface of the shell 10 is limited to 1.5-2.5 mm, which can balance the splitting and destroying effect of the vortex splitting structure 20 on large vortices 52 and the hand feel of the user when holding it, and the appearance consistency is also relatively good.

[0171] Fig. 20 yes Fig.16 An enlarged view of another example at E in the middle.

[0172] like Fig. 20 As shown, in one embodiment provided in the present application, the vortex splitting structure 20 is configured as follows: when the earphone 100 is in use (for example, when the user wears the earphone 100), the angle ∠P between the vortex splitting structure 20 and the horizontal direction a is -30 to 30°.

[0173] Taking the use state of the earphone 100 as an example, after being worn on the ear of the user, the vortex splitting structure 20 and the horizontal direction a may be parallel, that is, the angle ∠P between the vortex splitting structure 20 and the horizontal direction a is 0°; or Fig. 20As shown, the vortex splitting structure 20 is rotated counterclockwise so that the angle ∠P of the vortex splitting structure 20 relative to the horizontal direction a is 0 to 30°; alternatively, the vortex splitting structure 20 is rotated clockwise so that the angle ∠P of the vortex splitting structure 20 relative to the horizontal direction a is -30 to 0°.

[0174] In this embodiment, the angle ∠P between the vortex splitting structure 20 and the horizontal direction a is limited. When ∠P is -30° to 30°, the vortex splitting structure 20 can play the role of splitting and destroying large vortices 52. This makes the position of the vortex splitting structure 20 on the earphone 100 have a certain deflection margin, thereby having a certain design optimization space in the structural design stage. For example, the vortex splitting structure 20 can avoid other components when it is deflected.

[0175] like Fig.17 As shown, in one embodiment provided in the present application, the width L1 of the vortex splitting structure 20 is 2 to 3 mm.

[0176] In order to improve safety, it is not advisable to design the eddy current splitting structure 20 to be thinner, so as to avoid the eddy current splitting structure 20 cutting the user's hand. Therefore, in this embodiment, the width L1 of the eddy current splitting structure 20 is limited to 2-3 mm.

[0177] like Fig.17 As shown, in one embodiment provided in the present application, the length L2 of the vortex splitting structure 20 is 6-10 mm.

[0178] In this embodiment, the length L2 of the vortex splitting structure 20 is limited to 6-10 mm, which can ensure that the vortex splitting structure 20 has a sufficient coverage area.

[0179] like Fig.17 As shown, in one embodiment provided in the present application, the width L3 of the gap 40 between two adjacent vortex splitting structures 20 is 1 to 3 mm.

[0180] In this embodiment, the width L3 of the gap 40 is limited, and the size of the small vortex 54 within the gap width is also limited accordingly, with a diameter of approximately 1 to 2.8 mm. When the small vortex 54 of this diameter falls off and disappears, the resulting pressure pulsation has a weaker mutation and contains less noise.

[0181] In an embodiment provided in the present application, chamfers 23 are provided on both side edges of the windward surface 211 and the leeward surface 221 .

[0182] In this embodiment, chamfers 23 are provided on both side edges of the windward surface 211 and the leeward surface 221, that is, the surface corners of the vortex splitting structure 20 are smooth, which can further avoid scratching the user's hands or damaging clothes.

[0183] In an embodiment provided in the present application, the widths of the gaps 40 between two adjacent vortex splitting structures 20 are equal.

[0184] When there are a plurality of gaps 40 , the gaps 40 with equal widths can stably form small vortices 54 , thus avoiding strong and sudden pressure pulsations.

[0185] Fig.21 yes Figure 5 The figure is a left view of a user using the headset 100 provided in an embodiment of the present application in a windy scene. Fig. 22 yes Fig.21 Enlarged view of point G in the middle.

[0186] In an embodiment provided in the present application, the earphone 100 has an earphone handle 60 for the user to hold, and the sound pickup hole 11 is located on a side surface of the earphone handle 60 away from the user's cheek.

[0187] Furthermore, if Fig. 22 As shown, in one embodiment provided in the present application, the vortex splitting structure 20 is inclined relative to the extension direction b of the earphone handle 60, and the angle ∠Q between the vortex splitting structure 20 and the extension direction b of the earphone handle 60 is 50 to 80°.

[0188] like Fig. 22 As shown, when the user wears the earphone 100, the earphone handle 60 of the earphone 100 is tilted as a whole toward the user's cheek, and the vortex splitting structure 20 is horizontal as a whole, so that the best splitting and destroying effect on the large vortex 52 can be achieved. Therefore, in order to compensate for the tilt of the vortex splitting structure 20 caused by wearing the earphone 100, the vortex splitting structure 20 is tilted relative to the extension direction b of the earphone handle 60, so that when the earphone 100 is worn, the vortex splitting structure 20 can be horizontal as a whole.

[0189] In an embodiment provided in the present application, the surface of the earphone handle 60 is an arc-shaped curved surface, so that the user has a better hand feel.

[0190] Fig.23 yes Figure 5 FIG. 1 is a top view of a user using the headset 100 provided in an embodiment of the present application in a windy scene.

[0191] Fig.24 yes Fig.23 The experimental results of the eddy current noise experiment of the earphone 100 are compared in FIG. Fig.24 The horizontal axis is frequency (Frequency), the vertical axis is sound pressure level (SPL), and 0°-ini means Fig.23The frequency response curve of the eddy current noise generated by the wind from the 0° direction for the earphone 100 without the eddy current splitting structure 20, 0°-opt refers to Fig.23 The frequency response curve of the eddy current noise generated by the earphone 100 with the eddy current splitting structure 20 for the wind coming from the 0° direction, 45°-ini refers to Fig.23 The frequency response curve of the eddy current noise generated by the wind at 45° for the earphone 100 without the eddy current splitting structure 20, 45°-opt refers to Fig.23 The frequency response curve of the eddy current noise generated by the earphone 100 with the eddy current splitting structure 20 for the wind coming from the 45° direction is 90°-ini. Fig.23 The frequency response curve of the eddy current noise generated by the wind at 90° for the earphone 100 without the eddy current splitting structure 20, 90°-opt refers to Fig.23 Frequency response curve of the eddy current noise generated by the earphone 100 using the eddy current splitting structure 20 when the wind comes from the 90° direction.

[0192] from Fig.24 It can be seen from the comparison chart of the experimental results of the eddy current noise experiment in that the earphone 100 using the eddy current splitting structure 20 in the embodiment of the present application has the best noise reduction effect on the eddy current noise formed by the incoming airflow 50 in the 0° direction, and the eddy current noise in the range of 200 to 4000 Hz can be reduced by 1 to 5 dB, especially around 1400-1600 Hz, the noise reduction can reach more than 5 dB. For the eddy current noise formed by the incoming airflow 50 in the 45° direction, the earphone 100 using the eddy current splitting structure 20 in the embodiment of the present application can also achieve a good noise reduction effect, and the eddy current noise in the range of 600 to 4000 Hz can be reduced by 1 to 2 dB. For the eddy current noise formed by the incoming airflow 50 in the 90° direction, the noise reduction effect is not obvious.

[0193] In summary, the earphone 100 using the vortex splitting structure 20 in the embodiment of the present application has a good noise suppression capability for the vortex noise formed by the incoming air flow 50 in the direction of 0 to 45 degrees.

[0194] Fig.25 It is a schematic diagram of a mobile phone provided in an embodiment of the present application. Fig.26 yes Fig.25 Enlarged view of point I in the middle.

[0195] like Fig.25 and Fig.26 As shown, in one embodiment provided in the present application, the electronic device may also be a mobile phone 200 , which includes a microphone 30 , a housing 10 , and an eddy current splitting structure 20 .

[0196] The housing 10 of the mobile phone 200 is provided with a sound pickup hole 11 connecting the interior of the housing 10 with the outside. The microphone 30 is installed inside the housing 10 and receives external sound waves through the sound pickup hole 11 .

[0197] The vortex splitting structure 20 protrudes from the surface of the housing 10 and straddles the opening of the sound pickup hole 11 . The vortex splitting structure 20 includes a plurality of vortex splitting structures 20 that are spaced apart from each other, and a gap 40 for the vortex to pass through is provided between two adjacent vortex splitting structures 20 .

[0198] When a user uses the mobile phone 200 provided by the embodiment of the present application in a windy outdoor scene, the airflow 50 is blocked by the user's hand or the housing 10 of the mobile phone 200, and a large vortex 52 with a relatively large size is formed near the sound pickup hole 11 of the mobile phone 200. When the large vortex 52 has not fallen off and disappeared, and flows through the vortex splitting structure 20 at the sound pickup hole 11, it will be split by the vortex splitting structure 20 into multiple small vortices 54 and enter the gap 40, or split by the vortex splitting structure 20 into small vortices 54 located in the gap 40 and medium vortices 53 located outside the gap 40. In either case, the vortices that eventually fall off and disappear in the gap 40 are all small vortices 54.

[0199] In the related art, since it does not have a vortex splitting structure 20, the vortices formed at the sound pickup hole 11 are all large vortices 52. Compared with the shedding and disappearance of the large vortex 52, the sudden change of the pressure pulsation formed when the small vortex 54 shedding and disappearing is weaker, so the pressure pulsation contains less audible audio frequency components, which reduces the noise that finally enters the sound pickup hole 11, thereby reducing the interference with the microphone 30 inside the mobile phone 200.

[0200] In summary, the mobile phone 200 provided in the embodiment of the present application, by providing a vortex splitting structure 20 across the orifice of the sound pickup hole 11, can split and destroy the large vortex 52 formed near the sound pickup hole 11 when flowing through the vortex splitting structure 20, so that the large vortex 52 is transformed into a small vortex 54 and then falls off and disappears, so as to weaken the sudden change of pressure pulsation, thereby reducing the audible audio component in the pressure pulsation, and further achieving the purpose of suppressing the vortex noise at the sound pickup hole 11, thereby avoiding the vortex noise from interfering with the sound receiving effect of the microphone 30, so as to improve the user experience when using the mobile phone 200 to make calls or use human-computer interaction functions in windy scenes.

[0201] Finally, it should be noted that the above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. An electronic device, characterized in that: include: Microphone (30); The shell (10) is provided with a sound pickup hole (11) for connecting the interior of the shell (10) with the outside world, and the microphone (30) is installed inside the shell (10) and receives external sound waves through the sound pickup hole (11); A vortex splitting structure (20) protrudes in whole or in part from the surface of the shell (10) and is located above the sound pickup hole (11); wherein the two ends of the vortex splitting structure (20) are respectively connected to the shell (10) at the periphery of the sound pickup hole (11), or the two ends of the vortex splitting structure (20) are respectively connected to the hole wall of the sound pickup hole (11); the number of the vortex splitting structures (20) is multiple, the multiple vortex splitting structures (20) are arranged at intervals, and there is a gap (40) between two adjacent vortex splitting structures (20) for the vortex to pass through.

2. The electronic device according to claim 1, characterized in that: The plurality of vortex splitting structures (20) are in the shape of a straight grid as a whole.

3. The electronic device according to claim 1 or 2, characterized in that: The vortex splitting structure (20) comprises a windward portion (21) opposite to the flow direction of the airflow (50) and a leeward portion (22) located at one end away from the windward portion (21); the windward portion (21) has a windward surface (211) in the form of an arc-shaped curved surface, and the leeward portion (22) has a leeward surface (221) in the form of an arc-shaped curved surface.

4. The electronic device according to claim 3, characterized in that: The edges of the windward surface (211) and the leeward surface (221) at both ends facing each other are smoothly transitioned to the surface of the shell (10).

5. The electronic device according to claim 3, characterized in that: Pointed wind-breaking structures (212) extend from opposite ends of the windward portion (21) and the leeward portion (22).

6. The electronic device according to claim 4 or 5, characterized in that: The windward portion (21) and the leeward portion (22) respectively extend out from an opening contour line (111) of the sound pickup hole (11).

7. The electronic device according to claim 6, characterized in that: The length of the windward portion (21) extending from the orifice contour line (111) is greater than the length of the leeward portion (22) extending from the orifice contour line (111).

8. The electronic device according to any one of claims 1-2, 4-5, and 7, characterized in that: In the orthographic projection direction of the sound pickup hole (11), the coverage rate of the vortex splitting structure (20) for the sound pickup hole (11) is 40-60%.

9. The electronic device according to any one of claims 1-2, 4-5, and 7, characterized in that: The height of the eddy current splitting structure (20) protruding from the surface of the shell (10) is 1.5 to 2.5 mm.

10. The electronic device according to any one of claims 1-2, 4-5, and 7, characterized in that: The vortex splitting structure (20) is configured such that when a user wears the electronic device, the angle between the vortex splitting structure (20) and the horizontal direction is -30 to 30 degrees.

11. The electronic device according to any one of claims 1-2, 4-5, and 7, characterized in that: The width of the eddy current splitting structure (20) is 2 to 3 mm.

12. The electronic device according to any one of claims 1-2, 4-5, and 7, characterized in that: The length of the vortex splitting structure (20) is 6 to 10 mm.

13. The electronic device according to any one of claims 1-2, 4-5, and 7, characterized in that: The width of the gap (40) between two adjacent eddy current splitting structures (20) is 1 to 3 mm.

14. The electronic device according to claim 6, characterized in that: Chamfers (23) are provided on both side edges of the windward surface (211) and the leeward surface (221).

15. The electronic device according to any one of claims 1-2, 4-5, 7, and 14, characterized in that: The widths of the gaps (40) between two adjacent vortex splitting structures (20) are equal.

16. The electronic device according to any one of claims 1-2, 4-5, 7, and 14, characterized in that: The electronic device is a wearable electronic device.

17. The electronic device according to any one of claims 1-2, 4-5, 7, and 14, characterized in that: The electronic device is an earphone (100), the earphone (100) having an earphone handle (60) for a user to hold, and the sound pickup hole (11) is located on a side surface of the earphone handle (60) away from the cheek of the user.

18. The electronic device according to claim 17, characterized in that: The vortex splitting structure (20) is arranged to be inclined relative to the extension direction of the earphone handle (60), and the included angle between the vortex splitting structure (20) and the extension direction of the earphone handle (60) is 50 to 80 degrees.

19. The electronic device according to claim 17, characterized in that: The surface of the earphone handle (60) is an arc-shaped curved surface.

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