Electronic device and sound pickup apparatus

Abstract

Provided in the present application are an electronic device and a sound pickup apparatus. The electronic device has an exterior surface which is provided with a first sound pickup port and a plurality of second sound pickup ports distributed at intervals, each second sound pickup port being spaced apart from the first sound pickup port. A microphone, a first sound channel and a plurality of second sound channels are provided inside the electronic device, the first sound channel communicating the first sound pickup port with a first chamber of the microphone, the plurality of second sound channels corresponding to and being in communication with the plurality of second sound pickup ports on a one-to-one basis, the second sound channel being in communication with the second chamber of the microphone, and the first chamber of the microphone and the second chamber of the microphone being located on two sides of a diaphragm of the microphone, respectively. A plurality of sound pickup vectors can be formed between the plurality of second sound pickup ports and the first sound pickup port. A vector obtained by adding the plurality of sound pickup vectors is consistent with the direction of sensitivity of the microphone. The microphone of the electronic device can better collect sound in the direction of sensitivity of the microphone, and the microphone can achieve directional sound pickup.

Description

Electronic equipment and sound pickup devices

[0001] This application claims priority to the Chinese patent application with application number 202410208269.2 filed with the State Intellectual Property Office of China on February 22, 2024, and priority to the Chinese patent application with the invention name “Electronic device and sound pickup device”, all contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the technical field of sound-to-electricity conversion of electronic devices, and in particular to an electronic device and a sound pickup device. Background Art

[0003] Currently, directional microphones on the market primarily utilize a single microphone and two pickup ports to achieve directional sound pickup. Directional microphones utilize the pressure gradient generated by sound changes between the two pickup ports, causing the diaphragm to deform in response to the sound pressure to pick up sound. The direction of a directional microphone's sensitivity is determined by the direction of the line connecting the two pickup ports. If structural limitations prevent an electronic device from providing two pickup ports in the target direction, the device will not be able to achieve directional sound pickup in that direction. Summary of the Invention

[0004] The present application provides an electronic device and a sound pickup device. The outer surface of the electronic device is provided with a first sound pickup port and multiple second sound pickup ports spaced apart from the first sound pickup port. The second sound pickup ports are spaced apart from the first sound pickup port. The first sound pickup port is connected to the first chamber of the microphone, and the multiple second sound pickup ports are connected to the second chamber of the microphone. The sensitivity direction of the microphone can be determined by the direction of the connection between the multiple second sound pickup ports and the first sound pickup port through vector superposition. In this way, for electronic devices that cannot have a sound pickup port in the target direction, multiple second sound pickup ports can be opened in other directions on the electronic device to achieve directional sound pickup by the microphone in the target direction.

[0005] In a first aspect, an embodiment of the present application provides an electronic device, which has an exterior surface, the exterior surface having a first sound pickup port and a plurality of second sound pickup ports distributed at intervals, each second sound pickup port being spaced apart from the first sound pickup port; the interior of the electronic device has a microphone, a first sound channel and a plurality of second sound channels, the first sound channel connects the first sound pickup port and the first cavity of the microphone, the plurality of second sound channels correspond one-to-one to and are connected to the plurality of second sound pickup ports, the second sound channel connects the second cavity of the microphone, and the first cavity of the microphone and the second cavity of the microphone are respectively located on both sides of the diaphragm of the microphone.

[0006] The present application provides a first sound pickup port and multiple second sound pickup ports on the exterior surface of the electronic device, and the first sound pickup port is connected to the first chamber of the microphone, and the multiple second sound pickup ports are connected to the second chamber of the microphone, so that multiple sound pickup vectors can be formed between the multiple second sound pickup ports and the first sound pickup port. The vectors after vector addition of the multiple sound pickup vectors are consistent with the sensitivity direction of the microphone. The microphone of the electronic device can better collect the sound from the sensitivity direction of the microphone, that is, the microphone can achieve directional sound pickup, so that the electronic device can achieve directional sound pickup.

[0007] In one possible implementation, multiple second sound pickup ports and the first sound pickup port respectively form multiple sound pickup vectors, the direction of each sound pickup vector is from the corresponding second sound pickup port toward the first sound pickup port, the size of each sound pickup vector is positively correlated with the length of the path from the corresponding second sound pickup port to the first sound pickup port, and the sum of the multiple sound pickup vectors is consistent with the sensitivity direction of the microphone.

[0008] In this implementation, the microphone can adjust the positional relationship between the plurality of second sound pickup ports and the first sound pickup port to adjust the direction of the sound pickup vector, thereby changing the sensitivity direction of the microphone.

[0009] In a possible implementation, the electronic device further comprises a converging channel therein, which connects the plurality of second channels and the second chamber of the microphone; the electronic device further comprises an acoustic resistance mesh, which is arranged on the converging channel.

[0010] In this implementation, by setting a converging channel in the electronic device, multiple second sound channels can be connected to the second chamber of the microphone through the converging channel. The microphone only needs to open one second sound pickup hole to connect multiple second sound channels at the same time, and the way of connecting multiple second sound channels to the second chamber of the microphone is relatively simple and convenient. At the same time, the manufacturing process of the microphone can also be simplified. The acoustic resistance mesh is arranged on the converging channel, which can change the amplitude and phase of the sound pressure of the sound waves entering the converging channel from the multiple second sound pickup ports and acting on the other side of the diaphragm. By adjusting the damping coefficient of the acoustic resistance mesh, the microphone can be adjusted to a cardioid, supercardioid or figure-8 direction, and the adjustment flexibility is relatively high, which can enable the microphone to obtain better directivity, thereby improving the directional sound pickup effect of the microphone.

[0011] In one possible implementation, the electronic device is a pen-type device; the appearance surface includes an end face and a peripheral side surface connected to the periphery of the end face, the end face intersects with the axis of the electronic device, the peripheral side surface is arranged around the axis of the electronic device, the microphone is located on the inner side of the peripheral side surface, the first sound pickup port is located on the end face, and multiple second sound pickup ports are located on the peripheral side surface.

[0012] In this implementation, the multiple sound pickup vectors formed between the multiple second sound pickup ports and the first sound pickup port have components along the axis of the electronic device, and the components of the multiple sound pickup vectors in the direction parallel to the axis of the electronic device can be superimposed on each other, and at least part of the components of the multiple sound pickup vectors in the direction perpendicular to the axis of the electronic device can cancel each other, so that the sum of the multiple sound pickup vectors can be parallel to the axis of the electronic device, or form an acute angle or an obtuse angle with the axis of the electronic device. That is, the sensitivity direction of the microphone can be parallel to the axis of the electronic device, or form an acute angle or an obtuse angle with the axis of the electronic device. In addition, the positions of the first sound pickup port and the multiple second sound pickup ports can be combined with the shape of the pen-type device. When the pen-type device is used to pick up sound, the pen-type device can cooperate with the different holding habits of the user to better collect the user's voice and effectively shield the influence of the surrounding environment noise, which is beneficial to the user experience.

[0013] In a possible implementation, the sensitivity direction of the microphone is parallel to the axis of the electronic device.

[0014] In this implementation, the microphone's sensitivity direction is parallel to the electronic device's axis. This allows the microphone to effectively pick up sound from a direction parallel to the electronic device's axis. In other words, the microphone achieves directional sound pickup. Furthermore, the pen-type device can be adapted to the user's grip, with the microphone's sensitivity directed toward the user's mouth. This allows the pen-type device to effectively pick up the user's voice while effectively shielding it from ambient noise, enhancing the user experience.

[0015] In a possible implementation, the multiple second sound pickup ports are coplanar, and the plane where the multiple second sound pickup ports are located is perpendicular to the axis of the electronic device.

[0016] In this implementation, when the multiple second sound pickup ports are coplanar and the plane where the multiple second sound pickup ports are located is perpendicular to the axis of the electronic device, the multiple second sound pickup ports can be flexibly coordinated with the first sound pickup port by adjusting the position of the first sound pickup port, thereby flexibly adjusting the sensitivity direction of the microphone to be parallel to the axis of the electronic device, or to be at an acute angle or obtuse angle to the axis of the electronic device.

[0017] In a possible implementation, the center of the first sound pickup port is located on the axis of the electronic device, and the plurality of second sound pickup ports are symmetrically distributed relative to the center of the axis of the electronic device.

[0018] In this implementation, the acoustic path lengths between the multiple second sound pickup ports and the first sound pickup port are equal. The multiple sound pickup vectors are symmetrically distributed with respect to the axis of the electronic device and are equal in size. The components of the multiple sound pickup vectors along the axis of the electronic device can be superimposed, and the components of the multiple sound pickup vectors perpendicular to the axis of the electronic device can completely cancel each other out. The superimposed vector of the multiple sound pickup vectors is along the axis of the electronic device. The microphone can achieve directional sound pickup along the axis of the electronic device.

[0019] In one possible implementation, the number of second sound pickup ports is two or three, and the planes where all the second sound pickup ports are located form an acute angle or an obtuse angle with the axis of the electronic device; or, the number of second sound pickup ports is more than three, and at least one second sound pickup port is not coplanar with the other second sound pickup ports.

[0020] In this embodiment, the components of the multiple sound pickup vectors perpendicular to the axis of the electronic device cannot completely cancel each other out. The superimposed vector of the multiple sound pickup vectors forms an acute or obtuse angle with the axis of the electronic device. In other words, the direction of sensitivity of the microphone forms an acute or obtuse angle with the axis of the electronic device, enabling directional sound pickup by the microphone in the direction forming an acute or obtuse angle with the axis of the electronic device, thereby enabling directional sound pickup by the electronic device.

[0021] In one possible implementation, the electronic device includes a first shell, a second shell and a base, and the first shell, the base and the second shell are arranged along the axis of the electronic device; the side surface of the first shell facing away from the second shell forms an end face, and the peripheral side surface of the first shell, the peripheral side surface of the base and the peripheral side surface of the second shell together form at least part of the peripheral side surface; the microphone is located on the inner side of the first shell, the second sound pickup port is located on the peripheral side surface of the base, and the second sound channel is located on the base.

[0022] In this embodiment, the second sound channel and the second sound pickup port of the electronic device can be formed by the base of the electronic device, which has a simple structure and can reduce the number of structural parts, thereby simplifying the manufacturing process of the electronic device and saving costs.

[0023] In one possible implementation, the base body includes a partition and a packaging plate, which is fixedly connected to the partition and is located on the side of the partition away from the first shell; the partition is provided with a through hole and a plurality of first grooves arranged at intervals, the through hole passes through the partition along the axis of the electronic device, the openings of the plurality of first grooves are located on the side surface of the partition facing the packaging plate, one end of the plurality of first grooves is connected to the through hole, and the other end of the plurality of first grooves extends to the peripheral side surface of the partition; the packaging plate covers the first groove, and the inner walls of the packaging plate and the first groove jointly enclose a second sound channel and a second sound pickup port, and the through hole connects the second sound channel with the second chamber of the microphone.

[0024] In this embodiment, a plurality of first grooves are formed in the partition, and the first grooves are covered with a packaging plate, so that the packaging plate and the inner wall of the first groove together form a second sound channel and a second sound pickup port. The second sound channel and the second sound pickup port can be formed by disassembling and processing. The molding process of the second sound channel and the second sound pickup port is relatively simple and easy to process, which is conducive to improving the product yield. In a possible implementation method, the seat partition also includes a second groove, which is arranged on the side of the through hole facing the packaging plate, and connects the through hole with the plurality of first grooves, and the second groove is used to install the sound resistance mesh.

[0025] In this embodiment, the electronic device is provided with a second groove for mounting an acoustic resistance mesh. Furthermore, because the second groove is located at the confluence of multiple second sound channels, the acoustic resistance mesh can also be located at the confluence of multiple second sound channels. This allows the acoustic resistance mesh to simultaneously regulate sound waves from multiple second sound channels, achieving high regulation consistency and excellent regulation effects.

[0026] In a possible implementation, the packaging board is adhesive-backed.

[0027] In this embodiment, the packaging plate can not only cooperate with the partition to form the internal sound channel of the electronic device, but also be used to connect the partition and the second housing. The packaging plate has the effect of "one thing for multiple uses".

[0028] In a possible implementation, the electronic device further includes a circuit board, which is located inside the first shell; the circuit board is provided with a first connecting hole, which passes through the circuit board along the axis of the electronic device, and is part of the first sound channel.

[0029] In this embodiment, a portion of the first sound channel of the electronic device may be formed by a circuit board of the electronic device, which has a simple structure and can reduce the number of structural parts, thereby simplifying the manufacturing process of the electronic device and saving costs.

[0030] In one possible implementation, the first shell includes an end cover and a side wall, the side wall is connected to the periphery of the end cover, and the side wall extends along the axis of the electronic device; the end cover, the circuit board and the microphone are arranged along the axis of the electronic device, and the circuit board connects the end cover and the circuit board of the microphone; the end cover is provided with a second connecting hole, the second connecting hole passes through the end cover along the axis of the electronic device, and the second connecting hole is another part of the first sound channel.

[0031] In this embodiment, a portion of the first sound channel of the electronic device can be formed by the end cover of the electronic device, which has a simple structure and can reduce the number of structural parts, thereby simplifying the manufacturing process of the electronic device and saving costs.

[0032] In one possible implementation, the electronic device is a glasses-type device, which includes temples and frames, wherein the temples are connected to the frames; the microphone, the first sound channel, and the multiple second sound channels are located inside the temples; the end of the temple connected to the frame is provided with a first end face, and the temple is also provided with a side face connected to the first end face, and the side face extends along the extension direction of the temple; the first sound pickup port is located at the first end face, and the multiple second sound pickup ports are located on the side face; or, the end of the temple away from the frame is provided with a second end face, and the temple is also provided with a side face connected to the second end face, and the side face extends along the extension direction of the temple; the first sound pickup port is located at the second end face, and the multiple second sound pickup ports are located on the side face.

[0033] In the present application, the electronic device has a first sound pickup port on a first end surface that is connected to a first chamber of a microphone, and multiple second sound pickup ports on a side surface that are spaced apart and respectively connected to a second chamber of the microphone. Multiple sound pickup vectors can be formed between the multiple second sound pickup ports and the first sound pickup port. The multiple sound pickup vectors can be superimposed using the principle of vector addition to achieve directional sound pickup by the microphone in a target direction, thereby enabling the electronic device to achieve directional sound pickup.

[0034] In addition, the positions of the first sound pickup port and the multiple second sound pickup ports can be combined with the shape of the glasses-type device, so that when the glasses-type device is used to pick up sound, the glasses-type device can adapt to the user's wearing habits, and the sensitivity direction of the microphone can be toward the front or back of the user, so that the pen-type device can better collect the sound from the front or back of the user, and effectively shield the influence of surrounding environmental noise, which is beneficial to the user experience.

[0035] In a possible implementation, the sensitivity direction of the microphone is parallel to the extension direction of the temple.

[0036] In this embodiment, the microphone's sensitivity direction is parallel to the extension direction of the temples. This allows the microphone to effectively pick up sounds originating in the direction parallel to the temples' extension. In other words, the microphone can achieve directional sound pickup. Furthermore, the eyeglass-like device can be tailored to the user's wearing habits, effectively picking up sounds from both the front and back of the user while effectively shielding them from ambient noise, thus enhancing the user experience.

[0037] In one possible implementation, the electronic device is a tablet device, which includes a housing and a display screen, and the display screen is mounted on the housing; the microphone, the first sound channel, and the multiple second sound channels are located inside the housing; the housing includes a first side surface, a second side surface, and a bottom surface connecting the first side surface and the second side surface, the first side surface is connected to the second side surface, and the bottom surface is arranged away from the display screen; the first sound pickup port is located on the first side surface, at least one second sound pickup port is located on the second side surface, and at least one second sound pickup port is located on the first side surface or the bottom surface; or, the first sound pickup port is located on the second side surface, at least one second sound pickup port is located on the first side surface, and at least one second sound pickup port is located on the second side surface or the bottom surface; or, the first sound pickup port is located at the connection between the first side surface and the second side surface, at least one second sound pickup port is located on the first side surface, and at least one second sound pickup port is located on the second side surface or the bottom surface.

[0038] In the present application, multiple sound pickup vectors can be formed between the multiple second sound pickup ports and the first sound pickup port of the electronic device. Multiple sound pickup vectors can be superimposed through the principle of vector addition, and the vector after vector addition of the multiple sound pickup vectors is consistent with the sensitivity direction of the microphone. The microphone can better pick up sounds from the sensitivity direction of the microphone. That is, the microphone can achieve directional sound pickup, so that the electronic device can achieve directional sound pickup. In addition, the positions of the first sound pickup port and the multiple second sound pickup ports can be combined with the shape of the tablet device, so that when the tablet device is used to pick up sound, the tablet device can cooperate with the user's usage habits, and the sensitivity direction of the microphone can be towards the front of the user, so that the tablet device can better pick up the sound in front of the user and effectively shield the influence of the surrounding environment noise, which is beneficial to the user experience.

[0039] In a second aspect, an embodiment of the present application provides a sound pickup device, which is applied to an electronic device. The sound pickup device includes a first tube, a microphone, and multiple second tubes. The first tube is located on one side of the microphone, and the multiple second tubes are located on the other side of the microphone. A first sound channel is formed in the first tube, and the first sound channel is connected to the first cavity of the microphone. A second sound channel is formed in the second tube, and the multiple second sound channels are all connected to the second cavity of the microphone, and the entrances of the multiple second sound channels are staggered.

[0040] In the present application, multiple vectors can be formed between the inlet of the first sound channel and the inlet of the multiple second sound channels. These multiple vectors can be superimposed using the principle of vector addition, and the vector resulting from the vector addition aligns with the microphone's sensitivity direction. The microphone can better pick up sound from the microphone's sensitivity direction. In other words, the microphone can achieve directional sound pickup, and thus the electronic device can achieve directional sound pickup.

[0041] In one possible implementation, the sound pickup device further includes a merging pipe fitting, which is located between the microphone and the plurality of second pipe fittings, and a merging sound channel is formed in the merging pipe fitting, which connects the second sound channel and the second chamber of the microphone; the sound pickup device further includes an acoustic resistance mesh, which is arranged in the merging pipe fitting.

[0042] In this embodiment, the sound pickup device forms a converging sound channel by providing a converging pipe fitting, so that multiple second sound channels can be connected to the second chamber of the microphone through the converging sound channel. The microphone only needs to open one second sound pickup hole to connect multiple second sound channels at the same time, and the way of connecting multiple second sound channels to the second chamber of the microphone is relatively simple and convenient. At the same time, the manufacturing process of the microphone can also be simplified. The acoustic resistance mesh is arranged on the converging sound channel of the converging pipe fitting, which can change the amplitude and phase of the sound pressure of the sound waves entering the converging sound channel from the multiple second sound pickup ports and acting on the other side of the diaphragm of the microphone. By adjusting the damping coefficient of the acoustic resistance mesh, the microphone can be adjusted to a cardioid, supercardioid or figure-8 direction, and the adjustment flexibility is relatively high, so that the microphone can obtain better directivity, thereby improving the directional sound pickup effect of the microphone.

[0043] In a possible implementation, inlets of at least two second sound channels among the plurality of second sound channels face different directions.

[0044] In this embodiment, the entrances of the plurality of second sound channels may be arranged in non-coplanar areas, which is conducive to better arrangement of the positions of the entrances of the plurality of second sound channels and provides greater flexibility in setting the sound pickup device.

[0045] In a possible implementation, the inlets of the plurality of second sound channels are coplanar, and the lengths of the lines connecting the inlets of the plurality of second sound channels and the inlet of the first sound channel are equal.

[0046] In this embodiment, the multiple vectors formed between the inlets of the second sound channel and the inlet of the first sound channel are symmetrically distributed with respect to the axis of the first tube and are of equal magnitude. The components of the multiple vectors parallel to the axis of the first tube can be superimposed, and the components of the multiple vectors perpendicular to the axis of the first tube can completely cancel each other out. The resulting superposition of the multiple vectors then aligns along the axis of the first tube. This means that the microphone's sensitivity is directed along the axis of the first tube, enabling directional sound pickup along the axis of the first tube, thereby enabling the electronic device to achieve directional sound pickup.

[0047] In a third aspect, an embodiment of the present application provides an electronic device, which includes the above-mentioned sound pickup device, and the sound pickup device is located inside the electronic device; the electronic device has an exterior surface, and the exterior surface has a first sound pickup port and multiple second sound pickup ports, the first sound pickup port is arranged to be opposite to and connected to the entrance of the first sound channel of the sound pickup device, and the multiple second sound pickup ports are arranged to be opposite to and connected to the entrances of the multiple second sound channels of the sound pickup device in a one-to-one correspondence.

[0048] In the present application, the electronic device can not only use the sound pickup device to achieve directional sound pickup in the target direction, but also use the sound pickup device to adjust the microphone's cardioid, supercardioid or figure-8 direction.

[0049] In one possible implementation, multiple second sound pickup ports and the first sound pickup port respectively form multiple sound pickup vectors, the direction of each sound pickup vector is from the corresponding second sound pickup port toward the first sound pickup port, the size of each sound pickup vector is positively correlated with the length of the path from the corresponding second sound pickup port to the first sound pickup port, and the sum of the multiple sound pickup vectors is consistent with the sensitivity direction of the microphone.

[0050] In this implementation, the microphone can adjust the positional relationship between the plurality of second sound pickup ports and the first sound pickup port to adjust the direction of the sound pickup vector, thereby changing the sensitivity direction of the microphone. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the background technology, the drawings required for use in the embodiments of the present application or the background technology will be described below.

[0052] FIG1 is a schematic structural diagram of an electronic device according to an embodiment of the present application;

[0053] FIG2 is a schematic structural diagram of an embodiment of the microphone shown in FIG1 ;

[0054] FIG3 is a schematic diagram of a sound pickup path of the electronic device shown in FIG1 ;

[0055] FIG4 is a schematic diagram of a sound pickup vector of the electronic device shown in FIG1 ;

[0056] FIG5A is a schematic diagram showing the superposition principle of sound pickup vectors of the electronic device shown in FIG4 ;

[0057] FIG5B is a schematic diagram of the superposition principle diagram of the sound pickup vectors shown in FIG5A at another angle;

[0058] FIG6A is a schematic structural diagram of extracting the first channel, the second channel, and the merged channel of the microphone of the electronic device shown in FIG1 in one embodiment;

[0059] FIG6B is a schematic diagram showing the structure of the microphone, the first sound channel, the second sound channel, and the merged sound channel shown in FIG6A from another angle;

[0060] FIG7 is a polar coordinate diagram of the directional characteristics of the electronic device including the first channel, the second channel, the merged channel and the microphone shown in FIG6A;

[0061] FIG8A is a schematic structural diagram of a microphone, a first sound channel, a second sound channel, and a merged sound channel of the electronic device shown in FIG1 in another embodiment;

[0062] FIG8B is a schematic diagram of the structure of the microphone, the first sound channel, the second sound channel, and the merged sound channel shown in FIG8A from another angle;

[0063] FIG9A is a schematic structural diagram of a microphone, a first sound channel, a second sound channel, and a merged sound channel of the electronic device shown in FIG1 in another embodiment;

[0064] FIG9B is a schematic structural diagram of a microphone, a first sound channel, a second sound channel, and a merged sound channel of the electronic device shown in FIG1 in another embodiment;

[0065] FIG10 is a schematic structural diagram of a microphone, a first sound channel, a second sound channel, and a merged sound channel of the electronic device shown in FIG1 in another embodiment;

[0066] FIG11 is a schematic diagram of a partial structure of the electronic device shown in FIG1 in another embodiment;

[0067] FIG12 is a polar coordinate diagram of the directional characteristics of the electronic device shown in FIG11 at an operating frequency of 100 Hz;

[0068] FIG13 is a polar coordinate diagram of the directional characteristics of the electronic device shown in FIG11 at an operating frequency of 1000 Hz;

[0069] FIG14 is a polar coordinate diagram of the directional characteristics of the electronic device shown in FIG11 at an operating frequency of 4000 Hz;

[0070] FIG15 is a schematic structural diagram of the electronic device shown in FIG1 in another embodiment;

[0071] FIG16 is a partial exploded view of the electronic device shown in FIG15 ;

[0072] FIG17 is a partial cross-sectional view of the electronic device shown in FIG15 taken at AA;

[0073] FIG18 is a schematic structural diagram of a portion of the electronic device shown in FIG15 at different angles;

[0074] FIG19 is a polar coordinate diagram of the directional characteristics of the electronic device shown in FIG15 at an operating frequency of 1000 Hz;

[0075] FIG20 is a schematic structural diagram of a sound pickup device provided in an embodiment of the present application;

[0076] FIG21 is a schematic structural diagram of an electronic device including the sound pickup device shown in FIG20 in one embodiment;

[0077] FIG22 is a schematic structural diagram of another electronic device provided by the present application in an embodiment;

[0078] FIG23 is a schematic structural diagram of another electronic device provided by the present application in an embodiment;

[0079] FIG24 is a schematic structural diagram of another electronic device provided by the present application in an embodiment;

[0080] FIG25 is a schematic structural diagram of another electronic device provided by the present application in an embodiment;

[0081] FIG26 is a schematic structural diagram of another electronic device provided in the present application in one embodiment. DETAILED DESCRIPTION

[0082] The embodiments of the present application are described below in conjunction with the drawings in the embodiments of the present application.

[0083] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Among them, "fixed connection" means that the two are connected to each other and the relative position relationship remains unchanged after the connection. "Rotational connection" means that the two are connected to each other and can rotate relative to each other after the connection. "Sliding connection" means that the two are connected to each other and can slide relative to each other after the connection. The directional terms mentioned in the embodiments of the present application, such as "upper", "top", "bottom", "side", "inside", "outside", etc., are only reference to the directions of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present application, 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 cannot be understood as a limitation on the embodiments of the present application. "Multiple" means at least two.

[0084] In the embodiments of this application, the terms "first," "second," etc. are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of the features.

[0085] References to "one embodiment" or "some embodiments" in this specification mean that a particular feature, structure, or characteristic described in conjunction with that embodiment is included in one or more embodiments of the present application. Thus, phrases such as "in one embodiment," "in some embodiments," and "in other embodiments" appearing in various places in this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized.

[0086] The terms "include," "comprising," "having," and variations thereof all mean "including but not limited to," unless specifically emphasized otherwise. The term "plurality" refers to at least two.

[0087] Terms such as "parallel" and "perpendicular" are defined based on current technological advancements and are not strictly mathematical definitions. A small amount of deviation is permitted, and terms such as approximately parallel or approximately perpendicular are acceptable. For example, "A and B are parallel" means that A and B are parallel or approximately parallel, and the angle between A and B can be between 0° and 10°. For example, "A and B are perpendicular" means that A and B are perpendicular or approximately perpendicular, and the angle between A and B can be between 80° and 100°.

[0088] It is understood that the specific embodiments described herein are merely illustrative of the relevant embodiments and are not intended to limit the embodiments. It should also be noted that, for ease of description, only portions relevant to the embodiments are shown in the accompanying drawings. It should be noted that, unless there is a conflict, the embodiments and features within the embodiments of this application may be combined with one another.

[0089] The present application will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0090] FIG1 is a schematic structural diagram of an electronic device 1000 provided in an embodiment of the present application.

[0091] As shown in FIG1 , electronic device 1000 may be a pen-type device. It is understood that pen-type devices generally have an elongated cylindrical shape, making them easier for users to hold. For example, a pen-type device may be a smart pen, a reading pen, a laser pointer, or a voice recorder. These devices typically utilize a microphone 200 for directional sound pickup.

[0092] The electronic device 1000 may include a housing 100. The housing 100 may be substantially cylindrical. One end of the housing 100 may be tapered, the other end may be flat, or both ends may be flat. In other embodiments, the housing 100 may also be in the shape of an elliptical column, a square column, a waist-shaped column, or other elongated column.

[0093] The electronic device 1000 has an appearance surface 10. The appearance surface 10 of the electronic device 1000 may be the outer surface of the housing 100. The appearance surface 10 of the electronic device 1000 may include an end surface 101 and a peripheral side surface 102 connected to the periphery of the end surface 101. The end surface 101 intersects with the axis O1 of the electronic device 1000. For example, the end surface 101 may be perpendicular to the axis O1 of the electronic device 1000. The peripheral side surface 102 is arranged around the axis O1 of the electronic device 1000. The peripheral side surface 102 may extend in the direction of the axis O1 of the electronic device 1000. The axis O1 of the electronic device 1000 is illustrated in FIG1 by a dotted line. The axis O1 of the electronic device 1000 is parallel to the longitudinal extension direction of the electronic device 1000.

[0094] In some embodiments, the exterior surface 10 of the electronic device 1000 may have a first sound pickup opening 11 and multiple spaced-apart second sound pickup openings 12. Each second sound pickup opening 12 is spaced apart from the first sound pickup opening 11. For example, the first sound pickup opening 11 may be located on the end surface 101, and the multiple second sound pickup openings 12 may be located on the peripheral side surface 102. The multiple second sound pickup openings 12 may be arranged around the axis O1 of the electronic device 1000.

[0095] For example, the number of first sound pickup ports 11 can be one, and the number of second sound pickup ports 12 can be three. In other embodiments, the number of second sound pickup ports 12 can also be two or more than three. This application does not specifically limit the number of second sound pickup ports 12. The shapes of the first sound pickup ports 11 and the second sound pickup ports 12 can be circular, oval, square, etc. The first sound pickup ports 11 and the second sound pickup ports 12 can also have a micro-slit structure, etc. This application does not specifically limit the shape of the second sound pickup ports 12.

[0096] For example, electronic device 1000 includes a microphone 200, a first sound channel 13, multiple second sound channels 14, and a converging sound channel 15. The first sound channel 13 connects the first sound pickup port 11 with the space on one side of the diaphragm of microphone 200. The multiple second sound channels 14 correspond to and connect with the second sound pickup port 12, and each second sound channel 14 connects to the converging sound channel 15. The converging sound channel 15 also connects to the space on the other side of the diaphragm of microphone 200.

[0097] FIG. 2 is a schematic structural diagram of an embodiment of the microphone 200 shown in FIG. 1 .

[0098] As shown in FIG2 , in some embodiments, the microphone 200 includes a microphone housing 21, a microphone circuit board 22, a micro-electro-mechanical system chip 23 (i.e., a Micro-Electro-Mechanical System, MEMS chip), and a functional integrated circuit chip 24 (i.e., an Application Specific Integrated Circuit, ASIC chip). The microphone housing 21 is fixed to the microphone circuit board 22 and forms a chamber for the microphone 200 with the microphone circuit board 22. The micro-electro-mechanical system chip 23 and the functional integrated circuit chip 24 are fixed to the microphone circuit board 22 at intervals and are both located in the chamber of the microphone 200. The microphone circuit board 22 is used to electrically connect to the terminal circuit board of the electronic device 1000. The functional integrated circuit chip 24 is electrically connected to the micro-electro-mechanical system chip 23. In this embodiment, the electrical connection method between the two can adopt a connection method known in the prior art, and the functional integrated circuit chip 24 can also adopt a functional integrated circuit chip 24 known in the prior art, which will not be described in detail here.

[0099] For example, the MEMS chip 23 may include a diaphragm 231. The inner wall of the MEMS chip 23 and the microphone circuit board 22 together define a first chamber 201 of the microphone 200. The first chamber 201 is located on the side of the diaphragm 231 facing the microphone circuit board 22. The microphone housing 21 and the outer wall of the MEMS chip 23 together define a second chamber 202 of the microphone 200. The second chamber 202 of the microphone 200 may be part of the chamber of the microphone 200. The second chamber 202 of the microphone 200 is located on the side of the diaphragm 231 facing away from the first chamber 201. In other words, the first chamber 201 and the second chamber 202 of the microphone 200 are located on either side of the diaphragm 231, respectively. It is understood that the first chamber 201 and the second chamber 202 of the microphone 200 may have different shapes. The first chamber 201 and the second chamber 202 of the microphone 200 do not need to strictly adhere to a vertical or horizontal orientation. When the diaphragm 231 separates the first chamber 201 from the second chamber 202, it can be understood that the first chamber 201 and the second chamber 202 are located on either side of the diaphragm 231. For example, the first chamber 201 of the microphone 200 may be surrounded or semi-surrounded by the second chamber 202. In this embodiment, the micro-electromechanical system chip 23 can be a micro-electromechanical system chip 23 known in the art. Further details of the micro-electromechanical system chip 23 are not detailed here.

[0100] As shown in FIG2 , the microphone circuit board 22 has a first sound pickup hole 221 located directly opposite the diaphragm 231 of the microphone 200. The first sound pickup hole 221 communicates with the first chamber 201 of the microphone 200. The microphone housing 21 has a second sound pickup hole 211 communicated with the second chamber 202 of the microphone 200. In some embodiments, the second sound pickup hole 211 and the diaphragm 231 of the microphone 200 are positioned opposite each other, or alternatively, the second sound pickup hole 211 and the diaphragm 231 of the microphone 200 may be staggered. In this way, sound waves passing through the first sound pickup hole 221 can enter the first chamber 201 of the microphone 200 and act on one side of the diaphragm 231 of the microphone 200; sound waves passing through the second sound pickup hole 211 can enter the second chamber 202 of the microphone 200 and act on the other side of the diaphragm 231 of the microphone 200. The diaphragm 231 of the microphone 200 will vibrate under the action of the sound pressure formed by the two sound waves, and the micro-electromechanical system chip 23 can convert the vibration signal into an electrical signal for output, thereby enabling the microphone 200 to pick up sound.

[0101] Referring to Figures 1 and 2 , the microphone 200 can be located on the inner side of the peripheral side 102. One side of the microphone 200 can be disposed toward the end surface 101 of the electronic device 1000. For example, the side of the microphone 200 with the first sound pickup hole 221 can be disposed toward the end surface 101 of the electronic device 1000, while the side of the microphone 200 with the second sound pickup hole 211 can be disposed away from the end surface 101 of the electronic device 1000. Exemplarily, the first sound channel 13 can communicate with the first sound pickup hole 221 of the microphone 200, thereby communicating with the first chamber 201 of the microphone 200. It is understood that the first sound pickup port 11 of the electronic device 1000 is connected to the first sound channel 13, so that the first sound pickup port 11 can communicate with the first chamber 201 of the microphone 200 through the first sound channel 13. Exemplarily, the converging sound channel 15 can communicate with the second sound pickup hole 211 of the microphone 200, thereby communicating with the second chamber 202 of the microphone 200. It is understood that each second sound channel 14 is connected to the converging sound channel 15, so that each second sound channel 14 can be connected to the second chamber 202 of the microphone 200 through the converging sound channel 15. The multiple second sound pickup ports 12 of the electronic device 1000 are connected to the multiple second sound channels 14 in a one-to-one correspondence, so that each second sound pickup port 12 can be connected to the second chamber 202 of the microphone 200 through the corresponding second sound channel 14.

[0102] In this embodiment, the converging channel 15 is provided to connect the second sound pickup hole 211 of the microphone 200 and the multiple second sound channels 14, thereby allowing the multiple second sound channels 14 to communicate with the second chamber 202 of the microphone 200 through the converging channel 15. The microphone 200 only needs to have one second sound pickup hole 211 to simultaneously connect multiple second sound channels 14. The communication between the multiple second sound channels 14 and the second chamber 202 of the microphone 200 is relatively simple and convenient. This also simplifies the manufacturing process of the microphone 200. In other embodiments, the electronic device 1000 may not be provided with the converging channel 15. The microphone 200 may have multiple second sound pickup holes 211, and the multiple second sound pickup holes 211 are connected to the multiple second sound channels 14 in a one-to-one correspondence, so that each second sound pickup port 12 can communicate with the second chamber 202 of the microphone 200 through the corresponding second sound channel 14.

[0103] Fig. 3 is a schematic diagram of a sound pickup path of the electronic device 1000 shown in Fig. 1. Fig. 4 is a schematic diagram of a sound pickup vector of the electronic device 1000 shown in Fig. 1.

[0104] As shown in Figures 3 and 4, when the sound source is located on the side of the electronic device 1000 provided with the end surface 101, when the electronic device 1000 picks up sound, the first sound pickup port 11 is close to the sound source, and the sound emitted from the sound source first reaches the first sound pickup port 11. After the sound reaches the first sound pickup port 11, it can enter the first chamber 201 of the microphone 200 from the first sound pickup port 11 and act on one side of the diaphragm 231 of the microphone 200. This is the first sound pickup path of the electronic device 1000. It should be understood that the first chamber 201 and the second chamber 202 are schematically distinguished by dotted lines in Figures 3 and 4, and the specific shapes and specific positions of the first chamber 201 and the second chamber 202 are not limited to the shapes and positions shown in Figures 3 and 4. Figure 3 uses dotted arrows to illustrate the first sound pickup path. After reaching the first sound pickup port 11, the sound can also travel from the first sound pickup port 11 around the periphery of the electronic device 1000 to the multiple second sound pickup ports 12. From there, the sound enters the second chamber 202 of the microphone 200 and acts on the other side of the diaphragm 231 of the microphone 200. This is the second sound pickup path of the electronic device 1000. Figure 3 uses solid arrows to illustrate the second sound pickup path.

[0105] It is understandable that when the electronic device 1000 picks up sound, the sound emitted from the sound source can reach the first chamber 201 and the second chamber 202 of the microphone 200 from the first sound pickup path and the second sound pickup path respectively. At this time, multiple sound pickup vectors are formed between the multiple second sound pickup ports 12 and the first sound pickup port 11. For example, three sound pickup vectors are formed between the three second sound pickup ports 12 and the first sound pickup port 11 respectively. The dotted arrows in Figure 4 illustrate each sound pickup vector. The direction of each sound pickup vector is from the corresponding second sound pickup port 12 toward the first sound pickup port 11. The magnitude of the sound pickup vector is positively correlated with the path length L from the first sound pickup port 11 to the corresponding second sound pickup port 12. The path length L from the first sound pickup port 11 to each second sound pickup port 12 is the distance the sound wave propagates between the first sound pickup port 11 and the second sound pickup port 12, and is called the acoustic path length.

[0106] It should be understood that when the sound waves generated by the sound source are transmitted to the electronic device 1000, the sound waves will first reach the first sound pickup port 11 of the electronic device 1000 at a certain sound pressure, and then reach the second sound pickup port 12 of the electronic device 1000 at a different sound pressure. The sound pressure difference between the first sound pickup port 11 and the second sound pickup port 12 will cause fluctuations in the air in the microphone 200 and excite the MEMS chip to achieve directional sound pickup. As the acoustic path length increases, the sound pressure difference between the first sound pickup port 11 and the second sound pickup port 12 increases, and the sensitivity of the microphone 200 increases. At this time, the size of the sound pickup vector corresponding to the second sound pickup port 12 increases. As the acoustic path length shortens, the sound pressure difference between the first sound pickup port 11 and the second sound pickup port 12 decreases, and the sensitivity of the microphone 200 decreases. At this time, the size of the sound pickup vector corresponding to the second sound pickup port 12 decreases. That is, as the path length L from the first sound pickup port 11 to the second sound pickup port 12 increases, the size of the sound pickup vector formed between the first sound pickup port 11 and the corresponding second sound pickup port 12 increases. As the path length L from the first sound pickup port 11 to the second sound pickup port 12 decreases, the size of the sound pickup vector formed between the first sound pickup port 11 and the corresponding second sound pickup port 12 decreases. The size of the sound pickup vector is positively correlated with the path length L from the first sound pickup port 11 to the corresponding second sound pickup port 12.

[0107] FIG5A is a schematic diagram showing the principle of superposition of sound pickup vectors of the electronic device 1000 shown in FIG4. FIG5B is a schematic diagram showing the principle of superposition of sound pickup vectors shown in FIG5A at another angle. For example, FIG5A shows a plurality of sound pickup vectors. The superposition principle diagram at an angle parallel to the axis of the electronic device 1000. FIG5B illustrates multiple sound pickup vectors. Superimposed schematic diagram at an angle perpendicular to the axis of the electronic device 1000.

[0108] As shown in FIG5A and FIG5B, multiple sound pickup vectors can be superimposed by the principle of vector addition, and the sum of the multiple sound pickup vectors is It can be expressed as:

[0109] in, represents the sound pickup vector formed by the Nth second sound pickup port 12 and the first sound pickup port 11; The direction is from the Nth second sound pickup port 12 toward the first sound pickup port 11; The size of is positively correlated with the length L of the path from the first sound pickup port 11 to the Nth second sound pickup port 12 .

[0110] Since the first sound pickup port 11 is located on the end surface 101 of the electronic device 1000 and the plurality of second sound pickup ports 12 are located on the peripheral side surface 102 of the electronic device 1000, the plurality of sound pickup vectors formed between the plurality of second sound pickup ports 12 and the first sound pickup port 11 are It has a component along the axis O1 of the electronic device 1000. The components in the direction parallel to the axis O1 of the electronic device 1000 can be superimposed on each other, and multiple sound pickup vectors At least part of the components in the direction perpendicular to the axis O1 of the electronic device 1000 can cancel each other, so that the multiple sound pickup vectors The added vector The direction of the microphone 200 may be parallel to the axis O1 of the electronic device 1000, or may form an acute or obtuse angle with the axis O1 of the electronic device 1000. In other words, the sensitivity direction of the microphone 200 may be parallel to the axis O1 of the electronic device 1000, or may form an acute or obtuse angle with the axis O1 of the electronic device 1000. The microphone 200 can achieve directional sound pickup in a direction parallel to the axis of the electronic device, or in a direction forming an acute or obtuse angle with the axis O1 of the electronic device 1000.

[0111] For example, three pickup vectors The three sound pickup vectors are symmetrical relative to the axis O1 of the electronic device 1000. The components in the direction parallel to the axis O1 of the electronic device 1000 can be superimposed on each other, and the three sound pickup vectors The components in the direction perpendicular to the axis O1 of the electronic device 1000 can completely cancel each other out, so that the three sound pickup vectors The sum after addition The direction is parallel to the axis O1 of the electronic device 1000.

[0112] The sensitivity direction of the microphone 200 can be understood as the microphone 200 being sensitive to sounds from its sensitivity direction, being able to better collect sounds from its sensitivity direction, and being able to suppress sounds from other directions compared to sounds in the sensitivity direction. In an embodiment of the present application, the sensitivity direction of the microphone 200 can be determined by the sum of multiple sound pickup vectors. The microphone 200 can respond to the sound pressure difference between the first sound pickup port 11 and the second sound pickup port 12, and stimulate the MEMS chip to achieve directional sound pickup. In this way, for an electronic device 1000 that cannot open a sound pickup port in the target direction, directional sound pickup in the target direction can be achieved by opening multiple second sound pickup ports 12 in other directions on the electronic device 1000. For example, when a pen-type device is used to pick up human voices, the user usually holds the electronic device 1000 with one end of the electronic device 1000 along the length direction facing the sound source (for example, the user's mouth). Since it is difficult for a pen-type device to open a sound pickup port at the other end away from the sound source, a first sound pickup port 11 and multiple second sound pickup ports 12 distributed at intervals can be opened on the appearance surface 10 of the electronic device 1000. For example, the first sound pickup port 11 is opened on the end surface 101 of the electronic device 1000, and multiple second sound pickup ports 12 are opened on the peripheral side surface 102 of the electronic device 1000, and the first sound pickup port 11 is connected to the first cavity 201 of the microphone 200, and the multiple second sound pickup ports 12 are connected to the second cavity 202 of the microphone 200, so that multiple sound pickup vectors can be formed between the multiple second sound pickup ports 12 and the first sound pickup port 11. Multiple pickup vectors Vector after vector addition Consistent with the sensitivity direction of the microphone 200. The microphone 200 of the electronic device 1000 can better collect the sound from the sensitivity direction of the microphone 200, that is, the microphone 200 can achieve directional sound pickup, so that the electronic device 1000 can achieve directional sound pickup. For example, the sensitivity direction of the microphone 200 can be parallel to the axis O1 of the electronic device 1000, or form an acute angle or an obtuse angle with the axis O1 of the electronic device 1000. In this way, the microphone 200 of the pen-type device can achieve directional sound pickup along the length extension direction of the electronic device 1000. The direction in which the microphone 200 has the greatest sensitivity is toward the sound source, which can effectively shield the influence of the surrounding environmental noise. In addition, the microphone 200 can adjust the direction of the pickup vector by adjusting the positional relationship between the multiple second sound pickup ports 12 and the first sound pickup port 11, thereby changing the sensitivity direction of the microphone 200.

[0113] It should be understood that in the embodiment of the present application, the sensitivity direction of the microphone 200 being parallel to the axis O1 of the electronic device 1000 includes the situation where the sensitivity direction of the microphone 200 coincides with the axis O1 of the electronic device 1000 .

[0114] Figure 6A is a schematic diagram illustrating the structure of the microphone 200, first sound channel 13, second sound channel 14, and merged sound channel 15 of the electronic device 1000 shown in Figure 1 in one embodiment. Figure 6B is a schematic diagram illustrating the structure of the microphone 200, first sound channel 13, second sound channel 14, and merged sound channel 15 shown in Figure 6A from another angle.

[0115] As shown in Figures 5A to 6A, the center of the first sound pickup port 11 is located on the axis O1 of the electronic device 1000. The multiple second sound pickup ports 12 are coplanar, and the planes where the multiple second sound pickup ports 12 are located are perpendicular to the axis O1 of the electronic device 1000. The multiple second sound pickup ports 12 are symmetrically distributed relative to the center of the axis O1 of the electronic device 1000. The acoustic path lengths between the multiple second sound pickup ports 12 and the first sound pickup port 11 are equal. At this time, the multiple sound pickup vectors The multiple sound pickup vectors are symmetrically distributed with respect to the axis O1 of the electronic device 1000 and are equal in size. The components along the axis O1 of the electronic device 1000 can be superimposed, and multiple sound pickup vectors The components perpendicular to the axis O1 of the electronic device 1000 can completely cancel each other out, so the multiple sound pickup vectors Superimposed vector Along the axis O1 of the electronic device 1000. That is, the microphone 200's sensitivity is along the axis O1 of the electronic device 1000. The microphone 200 can achieve directional sound pickup along the axis O1 of the electronic device 1000, thereby enabling the electronic device 1000 to achieve directional sound pickup. Furthermore, the pen-type device can better accommodate the user's grip, with the microphone 200's sensitivity directed toward the user's mouth. This allows the pen-type device to better pick up the user's voice while effectively shielding it from ambient noise, improving the user experience.

[0116] It should be understood that in the embodiment of the present application, the position of the first sound pickup port 11 is mainly defined by the center of the first sound pickup port 11, and the position of the second sound pickup port 12 is mainly defined by the center of the second sound pickup port 12. The coplanarity of multiple second sound pickup ports 12 means that the centers of the multiple second sound pickup ports 12 are coplanar. The line between the first sound pickup port 11 and the second sound pickup port 12 refers to the line between the center of the first sound pickup port 11 and the center of the second sound pickup port 12. The second sound pickup port 12 facing the first sound pickup port 11 means that the center of the second sound pickup port 12 faces the center of the first sound pickup port 11.

[0117] FIG. 7 is a polar coordinate diagram of the directional characteristics when the electronic device 1000 includes the first sound channel 13 , the second sound channel 14 , the merged sound channel 15 , and the microphone 200 shown in FIG. 6A .

[0118] As shown in Figures 6A and 7, the sensitivity direction of microphone 200 is along the axis O1 of electronic device 1000. The sensitivity direction of microphone 200 may coincide with or nearly coincide with the line connecting the 90° and 270° directions in Figure 7. In this case, microphone 200 can pick up sound from the 90° and 270° directions, while suppressing sound from the 0° and 180° directions. In other words, microphone 200 can pick up sound from the axis O1 of electronic device 1000 and suppress sound from the sides of electronic device 1000, thereby enabling directional sound pickup for electronic device 1000.

[0119] It can be understood that the acoustic path lengths of sound waves in the 90° and 270° directions between the first sound pickup port 11 and the plurality of second sound pickup ports 12 are the longest, resulting in the largest difference in sound pressure between the diaphragm 231 of the microphone 200 for the sound waves in the 90° and 270° directions. Therefore, the microphone 200 is sensitive to sound waves from the 90° and 270° directions, and thus the microphone 200 can pick up sounds from the 90° and 270° directions. The acoustic path lengths of sound waves in the 0° and 180° directions between the first sound pickup port 11 and the plurality of second sound pickup ports 12 are the shortest. Therefore, the difference in sound pressure between the diaphragm 231 of the microphone 200 for the sound waves in the 0° and 180° directions is the smallest, and the microphone 200 is least sensitive to sound waves from the 0° and 180° directions, and thus the microphone 200 can suppress sounds from the 0° and 180° directions. That is, the microphone 200 can collect sounds from the 90° direction and the 270° direction, and suppress sounds from the 0° direction and the 180° direction, so that the electronic device 1000 can achieve directional sound pickup.

[0120] In this embodiment, the electronic device 1000 is provided with a first sound pickup port 11 and a plurality of second sound pickup ports 12, and the first sound pickup port 11 is connected to the first chamber 201 of the microphone 200, and the plurality of second sound pickup ports 12 are connected to the second chamber 202 of the microphone 200, so that the microphone 200 can achieve directional sound pickup through the first sound pickup port 11 and the plurality of second sound pickup ports 12. For example, the microphone 200 of the electronic device 1000 can achieve directional sound pickup along the axis O1 of the electronic device 1000. When using the electronic device 1000 to pick up sound, the user holds the electronic device 1000 and points the first sound pickup port 11 toward the sound source (for example, the user's mouth). At this time, the sound source can be roughly located on the axis O1 of the electronic device 1000. Since the sensitivity direction of the microphone 200 can be along the axis O1 of the electronic device 1000, the microphone 200 can collect sounds from the axis O1 direction of the electronic device 1000, that is, the microphone 200 of the electronic device 1000 can collect sounds from the sound source and suppress sounds around the electronic device 1000, so that the electronic device 1000 can achieve directional sound pickup.

[0121] It should be noted that if the sensitivity direction of the microphone 200 coincides with or is nearly coincident with the line connecting the 0° and 180° directions in FIG7 , the acoustic path lengths of the sound waves in the 0° and 180° directions between the first sound pickup port 11 and the plurality of second sound pickup ports 12 are the longest, thereby enabling the microphone 200 of the electronic device 1000 to pick up sounds from the 0° and 180° directions; and the acoustic path lengths of the sound waves in the 90° and 270° directions between the first sound pickup port 11 and the plurality of second sound pickup ports 12 are the shortest, thereby enabling the microphone 200 to suppress sounds from the 90° and 270° directions. In other words, the microphone 200 can pick up sounds from the 0° and 180° directions and suppress sounds from the 90° and 270° directions, thereby enabling the electronic device 1000 to achieve directional sound pickup.

[0122] Figure 8A is a schematic diagram illustrating the structure of microphone 200, first sound channel 13, second sound channel 14, and merged sound channel 15 of electronic device 1000 shown in Figure 1 in another embodiment. Figure 8B is a schematic diagram illustrating the structure of microphone 200, first sound channel 13, second sound channel 14, and merged sound channel 15 shown in Figure 8A from another angle.

[0123] As shown in Figures 8A and 8B, the center of the first sound pickup port 11 is located on the axis O1 of the electronic device 1000. The plurality of second sound pickup ports 12 are coplanar, and the planes where the plurality of second sound pickup ports 12 are located are perpendicular to the axis O1 of the electronic device 1000. The sound pickup vectors are non-centrally symmetrically distributed relative to the axis O1 of the electronic device 1000. The plurality of sound pickup vectors are non-centrally symmetrically distributed relative to the axis O1 of the electronic device 1000. The components perpendicular to the axis O1 of the electronic device 1000 cannot completely cancel each other out, so the multiple sound pickup vectors The superimposed vector forms an acute angle or an obtuse angle with the axis O1 of the electronic device 1000. That is, the sensitivity direction of the microphone 200 forms an acute angle or an obtuse angle with the axis O1 of the electronic device 1000, thereby enabling directional sound pickup by the microphone 200 in the direction forming an acute angle or an obtuse angle with the axis O1 of the electronic device 1000, thereby enabling directional sound pickup by the electronic device 1000.

[0124] For example, the number of the second sound pickup ports 12 can be three. The three second sound pickup ports 12 and the first sound pickup port 11 respectively form three sound pickup vectors Two of the pickup vectors The sum of the components perpendicular to the axis O1 of the electronic device 1000 is greater than the third pickup vector The components perpendicular to the axis O1 of the electronic device 1000, so the three pickup vectors The components perpendicular to the axis O1 of the electronic device 1000 cannot completely cancel each other out. The three sound pickup vectors The superimposed vector forms an acute angle or an obtuse angle with the axis O1 of the electronic device 1000. At this time, the sensitivity direction of the microphone 200 forms an acute angle or an obtuse angle with the axis O1 of the electronic device 1000. In other embodiments, the number of the second sound pickup ports 12 can also be two or more than three. The present application does not specifically limit the number of the second sound pickup ports 12. The two or more second sound pickup ports 12 can be distributed non-centrally symmetrically relative to the axis O1 of the electronic device 1000. At this time, multiple sound pickup vectors The components perpendicular to the axis O1 of the electronic device 1000 cannot completely cancel each other out, so the multiple sound pickup vectors The superimposed vector forms an acute angle or an obtuse angle with the axis O1 of the electronic device 1000. At this time, the sensitivity direction of the microphone 200 forms an acute angle or an obtuse angle with the axis O1 of the electronic device 1000.

[0125] FIG9A is a schematic structural diagram of the microphone 200 , the first sound channel 13 , the second sound channel 14 , and the merged sound channel 15 of the electronic device 1000 shown in FIG1 in another embodiment.

[0126] As shown in FIG9A , the center of the first sound pickup port 11 is located on the axis O1 of the electronic device 1000. The number of the second sound pickup ports 12 can be three. The planes where the three second sound pickup ports 12 are located form an acute angle or an obtuse angle with the axis O1 of the electronic device 1000. In this case, the acoustic path length between one of the second sound pickup ports 12 and the first sound pickup port 11 is smaller than the acoustic path length between the other two second sound pickup ports 12 and the first sound pickup port 11, so that the sound pickup vector corresponding to the second sound pickup port 12 is The magnitude is smaller than the other two pickup vectors The size of the three pickup vectors The components perpendicular to the axis O1 of the electronic device 1000 cannot completely cancel each other out, so the three sound pickup vectors The superimposed vector forms an acute angle with the axis O1 of the electronic device 1000. That is, the sensitivity direction of the microphone 200 forms an acute angle or an obtuse angle with the axis O1 of the electronic device 1000, which enables the microphone 200 to directionally pick up sound in the direction forming an acute angle or an obtuse angle with the axis O1 of the electronic device 1000, thereby enabling the electronic device 1000 to achieve directional sound pickup.

[0127] FIG9B is a schematic structural diagram of the microphone 200 , the first sound channel 13 , the second sound channel 14 , and the merged sound channel 15 of the electronic device 1000 shown in FIG1 in another embodiment.

[0128] As shown in FIG9B , the center of the first sound pickup port 11 is located on the axis O1 of the electronic device 1000. The number of the second sound pickup ports 12 can be two. The plane where the two second sound pickup ports 12 are located forms an acute angle or an obtuse angle with the axis O1 of the electronic device 1000. At this time, the acoustic path length between one of the second sound pickup ports 12 and the first sound pickup port 11 is less than the acoustic path length between the other second sound pickup port 12 and the first sound pickup port 11, so that the sound pickup vector corresponding to the second sound pickup port 12 is The magnitude of another pickup vector is smaller than The size of the two pickup vectors The components perpendicular to the axis O1 of the electronic device 1000 cannot completely cancel each other out, so the two sound pickup vectors The superimposed vector forms an acute angle or an obtuse angle with the axis O1 of the electronic device 1000. That is, the sensitivity direction of the microphone 200 forms an acute angle or an obtuse angle with the axis O1 of the electronic device 1000, which enables the microphone 200 to directionally pick up sound in the direction forming an acute angle or an obtuse angle with the axis O1 of the electronic device 1000, thereby enabling the electronic device 1000 to achieve directional sound pickup.

[0129] FIG10 is a schematic structural diagram of the microphone 200 , the first sound channel 13 , the second sound channel 14 , and the merged sound channel 15 of the electronic device 1000 shown in FIG1 in another embodiment.

[0130] As shown in FIG10 , the center of the first sound pickup port 11 is located on the axis O1 of the electronic device 1000. The number of the second sound pickup ports 12 can be four, and at least one second sound pickup port 12 is not coplanar with the other second sound pickup ports 12. In this case, the acoustic path length between at least one second sound pickup port 12 and the first sound pickup port 11 is smaller than the acoustic path length between the other second sound pickup ports 12 and the first sound pickup port 11, so that the sound pickup vector corresponding to the second sound pickup port 12 is The size is smaller than the other pickup vectors The size of the four pickup vectors The components perpendicular to the axis O1 of the electronic device 1000 cannot completely cancel each other out, so the four sound pickup vectors The superimposed vector forms an acute angle or an obtuse angle with the axis O1 of the electronic device 1000. That is, the sensitivity direction of the microphone 200 forms an acute angle or an obtuse angle with the axis O1 of the electronic device 1000, thereby enabling directional sound pickup by the microphone 200 in the direction forming an acute angle or an obtuse angle with the axis O1 of the electronic device 1000.

[0131] In other embodiments, the number of the second sound pickup ports 12 may be more than four, and this application does not specifically limit the number of the second sound pickup ports 12. The number of the second sound pickup ports 12 is more than four, and at least one second sound pickup port 12 is not coplanar with the other second sound pickup ports 12. In this case, the acoustic path length between at least one second sound pickup port 12 and the first sound pickup port 11 is smaller than the acoustic path length between the other second sound pickup ports 12 and the first sound pickup port 11, so that the sound pickup vector corresponding to the second sound pickup port 12 is The size is smaller than the other pickup vectors The size of multiple pickup vectors The components perpendicular to the axis O1 of the electronic device 1000 cannot completely cancel each other out, so the multiple sound pickup vectors The superimposed vector forms an acute angle or an obtuse angle with the axis O1 of the electronic device 1000. That is, the sensitivity direction of the microphone 200 forms an acute angle or an obtuse angle with the axis O1 of the electronic device 1000, which enables the microphone 200 to directionally pick up sound in the direction forming an acute angle or an obtuse angle with the axis O1 of the electronic device 1000, thereby enabling the electronic device 1000 to achieve directional sound pickup.

[0132] It should be noted that the electronic device 1000 in the above embodiments is described using the example of an example in which the center of the first sound pickup port 11 is located on the axis O1 of the electronic device 1000. In other embodiments, the center of the first sound pickup port 11 can also be staggered from the axis O1 of the electronic device 1000. In this case, by designing the relative positions of the multiple second sound pickup ports 12 and the first sound pickup port 11, the sensitivity direction of the microphone 200 can be parallel to the axis O1 of the electronic device 1000 and staggered from the axis O1 of the electronic device 1000, or the sensitivity direction of the microphone 200 can also intersect with the axis O1 of the electronic device 1000. For example, the multiple second sound pickup ports 12 are coplanar, and the planes in which the multiple second sound pickup ports 12 lie are perpendicular to the axis O1 of the electronic device 1000. In this case, by adjusting the position of the first sound pickup port 11, the multiple second sound pickup ports 12 can be flexibly coordinated with the first sound pickup port 11, thereby flexibly adjusting the sensitivity direction of the microphone to be parallel to the axis of the electronic device, or to form an acute angle or an obtuse angle with the axis of the electronic device. The specific implementation of the design of the relative positions of the first sound pickup port 11 and the plurality of second sound pickup ports 12 can refer to the relative position relationship between the first sound pickup port 11 and the plurality of second sound pickup ports 12 shown in FIG. 6A to FIG. 10 , and will not be elaborated herein.

[0133] The electronic device 1000 provided in the embodiment of the present application can adjust the sensitivity direction of the microphone 200 (for example, adjusting the sensitivity direction of the microphone 200 along the axial direction of the electronic device 1000, or adjusting the sensitivity direction of the microphone 200 to form an acute angle or an obtuse angle with the axis O1 of the electronic device 1000) by adjusting the relative positions of the first sound pickup port 11 and the plurality of second sound pickup ports 12, so as to adapt to different application scenarios of the electronic device 1000 or to adapt to different holding habits of the user for the electronic device 1000. For example, when the electronic device 1000 is used to pick up sound sources on the axis O1 of the electronic device 1000, by adjusting the sensitivity direction of the microphone 200 along the axial direction of the electronic device 1000, the sensitivity of the microphone 200 to the sound source can be maximized, so that the microphone 200 can better pick up sound from the direction of the axis O1 of the electronic device 1000. For another example, when the electronic device 1000 is used to pick up a sound source that is slightly deviated from the axis O1 of the electronic device 1000 (that is, the line between the sound source and the first sound pickup port 11 is at an acute angle or an obtuse angle to the axis O1 of the electronic device 1000), by adjusting the sensitivity direction of the microphone 200 to be at an acute angle or an obtuse angle to the axis O1 of the electronic device 1000, the sensitivity of the microphone 200 to the sound source can be maximized, and the microphone 200 can better pick up sounds from the direction at an acute angle or an obtuse angle to the axis O1 of the electronic device 1000, so that the electronic device 1000 can achieve directional sound pickup.

[0134] FIG11 is a schematic diagram of a partial structure of the electronic device 1000 shown in FIG1 in another embodiment.

[0135] 11 , the electronic device 1000 may further include an acoustic resistance mesh 300 . The acoustic resistance mesh 300 may be disposed in the converging channel 15 so that the sound waves entering from the second sound pickup port 12 pass through the acoustic resistance mesh 300 and act on the other side of the diaphragm 231 of the microphone 200 .

[0136] It is understood that by placing the acoustic resistance mesh 300 in the converging channel 15, the amplitude and phase of the sound pressure acting on the other side of the diaphragm, as sound waves enter the converging channel 15 through the multiple second sound pickup ports 12, can be varied. By adjusting the damping coefficient of the acoustic resistance mesh 300, the microphone 200 can be adjusted to a cardioid, supercardioid, or figure-of-eight pattern with high flexibility, achieving better directivity for the microphone 200 and improving its directional sound pickup performance.

[0137] Exemplarily, by increasing or decreasing the damping coefficient of the acoustic resistance mesh 300, the amplitude of the sound wave entering the second chamber 202 of the microphone 200 can be reduced or increased, thereby adjusting the sound pressure difference between the amplitude of the sound wave in the second chamber 202 of the microphone 200 and the amplitude of the sound wave in the first chamber 201 of the microphone 200 to achieve the cardioid, supercardioid or figure-8 orientation of the microphone 200.

[0138] It can be understood that when the sound wave amplitude value of the first chamber 201 of the microphone 200 is greater than the sound wave amplitude value of the second chamber 202 of the microphone 200, and the sound pressure difference between the sound wave amplitude value of the first chamber 201 and the sound wave amplitude value of the second chamber 202 is large, the microphone 200 is most sensitive to the sound from the side of the first sound pickup port 11, and can better record the sound toward the side of the first sound pickup port 11, and suppress the sound from the peripheral side 102 of the electronic device 1000 and the side away from the first sound pickup port 11, thereby realizing the cardioid direction of the microphone 200.

[0139] When the sound wave amplitude value of the first chamber 201 of the microphone 200 is greater than the sound wave amplitude value of the second chamber 202 of the microphone 200, and the sound pressure difference between the sound wave amplitude value of the first chamber 201 and the sound wave amplitude value of the second chamber 202 is small, the microphone 200 is sensitive to sounds from the side of the first sound pickup port 11 and the side away from the first sound pickup port 11, and is most sensitive to sounds from the side of the first sound pickup port 11. Therefore, the microphone 200 can better record sounds toward the side of the first sound pickup port 11 and sounds away from the side of the first sound pickup port 11, and suppress sounds from the peripheral side 102 of the electronic device 1000 to achieve the supercardioid directivity of the microphone 200.

[0140] When the sound wave amplitude value of the first chamber 201 is equivalent to the sound wave amplitude value of the second chamber 202, the microphone 200 is more sensitive to the sound coming from the side of the first sound pickup port 11 and the side facing away from the first sound pickup port 11, and can better record the sound toward the side of the first sound pickup port 11 and the side facing away from the first sound pickup port 11, and suppress the sound coming from the direction of the surrounding side surface 102 of the electronic device 1000, thereby realizing the figure 8 direction of the microphone 200.

[0141] In this embodiment, the acoustic resistance mesh 300 can be made of materials such as silicon, ceramic, metal, and nylon. The acoustic resistance mesh 300 can utilize an existing acoustic resistance mesh structure. For example, the acoustic resistance mesh 300 can be a silicon wafer with dense through-holes. The damping coefficient of the acoustic resistance mesh 300 can be adjusted by adjusting the number and size of the through-holes in the acoustic resistance mesh 300. The acoustic resistance mesh 300 can also be a silicon wafer with channels, which allow sound waves to pass through and act on the diaphragm 231 of the microphone 200. One end of the channel can be configured as a mesh structure or a through-hole structure; the other end of the channel can be configured as a mesh structure or a through-hole structure. The mesh structure is primarily used to prevent dust from entering the interior of the microphone 200 through the second sound pickup hole 211 and affecting the performance of the microphone 200. The mesh structure can be formed by providing multiple small through-holes at the end of the channel. Alternatively, a dust screen can be used as a mesh structure and applied to the end of the channel by gluing or other means.

[0142] FIG12 is a polar coordinate diagram of the directional characteristics of the electronic device 1000 shown in FIG11 at an operating frequency of 100 Hz. FIG13 is a polar coordinate diagram of the directional characteristics of the electronic device 1000 shown in FIG11 at an operating frequency of 1000 Hz. FIG14 is a polar coordinate diagram of the directional characteristics of the electronic device 1000 shown in FIG11 at an operating frequency of 4000 Hz.

[0143] As shown in Figures 12 to 14, when the operating frequency of the microphone 200 is 100 / 1000 / 4000 Hz, by adjusting the damping coefficient of the acoustic resistance mesh 300, the microphone 200 can achieve cardioid, supercardioid, and figure-of-eight directivity, and the adjustment flexibility is relatively high. It can be understood that by setting the acoustic resistance mesh 300 and adjusting the damping coefficient of the acoustic resistance mesh 300, the microphone 200 can achieve cardioid, supercardioid, and figure-of-eight directivity at different operating frequencies such as low frequency (e.g., 100 Hz), mid-frequency (e.g., 1000 Hz), and high frequency (e.g., 4000 Hz). Figures 12 to 14 use three different line shapes to schematically distinguish between cardioid, supercardioid, and figure-of-eight directivity.

[0144] When the damping coefficient of the acoustic resistance mesh 300 is adjusted to make the acoustic resistance smaller (for example, the acoustic resistance can be 3Pa*s / m), the microphone 200 can achieve an 8-shaped directivity at an operating frequency of 100 / 1000 / 4000 Hz. When the damping coefficient of the acoustic resistance mesh 300 is adjusted to increase the acoustic resistance (for example, the acoustic resistance can be 75Pa*s / m), the microphone 200 can achieve a supercardioid directivity at an operating frequency of 100 / 1000 / 4000 Hz; when the damping coefficient of the acoustic resistance mesh 300 is adjusted to make the acoustic resistance larger (for example, the acoustic resistance can be 118Pa*s / m), the microphone 200 can achieve a cardioid directivity at an operating frequency of 100 / 1000 / 4000 Hz. In another embodiment, the electronic device 1000 may further include a damping member. The damping member may be provided on the path from the first sound pickup port 11 to the first chamber 201 of the microphone 200. Specifically, the damping element can be provided in the first sound channel 13. It is understood that the material and structure of the damping element can be the same as the material and structure of the acoustic resistance mesh 300. By increasing or decreasing the damping coefficient of the damping element, the amplitude of the sound wave entering the first chamber 201 of the microphone 200 can be reduced or increased, thereby adjusting the sound pressure difference between the amplitude of the sound wave in the first chamber 201 of the microphone 200 and the amplitude of the sound wave in the second chamber 202 of the microphone 200, thereby achieving a cardioid, supercardioid, or figure-8 directivity of the microphone 200. In addition, the sound pressure difference between the amplitude of the sound wave in the first chamber 201 of the microphone 200 and the amplitude of the sound wave in the second chamber 202 of the microphone 200 can be adjusted by simultaneously adjusting the damping coefficients of the acoustic resistance mesh 300 and the damping element, thereby adjusting the microphone 200 to the desired cardioid or figure-8 directivity, which provides good adjustment flexibility.

[0145] The above, combined with the relevant drawings, specifically describes the basic structure of electronic device 1000 when it is a pen-type device, as well as the basic principle by which microphone 200 of electronic device 1000 achieves directional sound pickup. The following, combined with the relevant drawings, will further describe the specific structure of electronic device 1000, taking the example of a smart pen as an example.

[0146] Fig. 15 is a schematic diagram of the structure of another embodiment of the electronic device 1000 shown in Fig. 1. Fig. 16 is a partial exploded view of the structure of the electronic device 1000 shown in Fig. 15.

[0147] As shown in Figures 15 and 16 , electronic device 1000 may be a smart pen. Electronic device 1000 includes a first housing 110, a second housing 120, a base 400, a microphone 200, an acoustically resistive mesh 300, and a circuit board 500. The first housing 110, base 400, and second housing 120 may be arranged along axis O1 of electronic device 1000. Base 400 connects first housing 110 and second housing 120, respectively.

[0148] Exemplarily, the outer surfaces of the first shell 110, the second shell 120, and the base 400 can jointly form the appearance surface 10 of the electronic device 1000. Specifically, the appearance surface 10 of the electronic device 1000 may include an end surface 101 and a peripheral side surface 102 connected to the periphery of the end surface 101. The side surface of the first shell 110 facing away from the second shell 120 forms the end surface 101 of the electronic device 1000. The peripheral side surface of the first shell 110, part of the peripheral side surface of the base 400, and the peripheral side surface of the second shell 120 jointly form the peripheral side surface 102 of the electronic device 1000. It can be understood that the electronic device 1000 may include one or more structural members for participating in the formation of the appearance surface 10, and all or part of these structural members including the partial appearance surface 10 can be considered as part of the housing of the electronic device 1000.

[0149] Exemplarily, the second shell 120 may include a main body 121 and a pen head 122, and the pen head 122 is connected to one end of the main body 121 away from the first shell 110. It is understandable that the main body 121 is slender and can extend along the axis O1 of the electronic device 1000 for easy grip. The end of the pen head 122 away from the main body 121 may be conductive and used for clicking the touch screen or writing on the touch screen. It is understandable that the second shell 120 may be an integrally molded structural member. That is, the main body 121 and the pen head 122 can be formed into an integral structure through an integral molding process. Alternatively, the second shell 120 may also be a spliced ​​structural member. For example, the main body 121 and the pen head 122 can be formed into an integral structure through a splicing method (such as mortise and tenon, snap-fit ​​process) or a fixing method (such as welding, bonding, etc.) to form an integral structural member.

[0150] As shown in Figures 15 and 16, the first housing 110 may have a first recess 1101. The first recess 1101 may be formed by a circumferential side surface of the first housing 110 being recessed toward the center of the first housing 110. The base 400 may have a second recess 402. The second recess 402 may be formed by a portion of the circumferential side surface 102 of the base 400 being recessed toward the center of the base 400. The second housing 120 may have a third recess 1202. The third recess 1202 may be formed by a circumferential side surface of the second housing 120 being recessed toward the center of the second housing 120. It will be understood that when the first housing 110, base 400, and second housing 120 are assembled, the first recess 1101, the second recess 402, and the third recess 1202 may be aligned, thereby facilitating the positioning and assembly between the first housing 110, the base 400, and the second housing 120. At the same time, the first concave portion 1101 , the second concave portion 402 and the third concave portion 1202 can together form a long strip-shaped recessed area on the electronic device 1000 , which is convenient for the user to hold.

[0151] FIG17 is a partial cross-sectional view of the electronic device 1000 shown in FIG15 taken along line AA.

[0152] As shown in Figures 16 and 17, the first housing 110 may include an end cap 111 and a side wall 112. The side wall 112 may be connected to the periphery of the end cap 111 and extend along the axis O1 of the electronic device 1000. The end surface of the end cap 111 may form the end surface 101 of the electronic device 1000. The outer surface of the side wall 112 may form a portion of the peripheral side surface 102 of the electronic device 1000.

[0153] Exemplarily, the end cap 111 may include a top 1111 and a connecting portion 1112. The connecting portion 1112 is located on the side of the top 1111 facing the second shell 120 and is connected to the top 1111. FIG17 uses dotted lines to schematically distinguish the top 1111 and the connecting portion 1112. The side wall 112 may be sleeved on the connecting portion 1112 and connected to the connecting portion 1112 and the top 1111. For example, the top 1111 of the end cap 111 may be located on the side of the side wall 112 facing away from the second shell 120, and the connecting portion 1112 of the end cap 111 may be located on the inner side of the side wall 112. The outer surface of the top 1111 may form the end face 101 of the electronic device 1000. It is understandable that the end cap 111 may be an integrally molded structural member. That is, the top 1111 and the connecting portion 1112 may be formed into an integral structure through an integral molding process. Alternatively, the end cap 111 may also be a spliced ​​structural member. For example, the top portion 1111 and the connecting portion 1112 may be joined together (eg, by mortise and tenon joints, or by snap-fitting techniques) or fixed together (eg, by welding, bonding, or other techniques) to form an integral structural member.

[0154] For example, the end cap 111 may be provided with a second communication hole 1113. The second communication hole 1113 extends through the end cap 111 along the axis O1 of the electronic device 1000. That is, the second communication hole 1113 may extend through the top portion 1111 and the connecting portion 1112. The opening at one end of the second communication hole 1113, which is away from the second housing 120, may form the first sound pickup port 11 of the electronic device 1000.

[0155] As shown in Figures 16 and 17 , the microphone 200 and the circuit board 500 are both located inside the first housing 110. The end cap 111 of the first housing 110, the circuit board 500, and the microphone 200 can be arranged along the axis O1 of the electronic device 1000. The circuit board 500 can connect the microphone circuit board 22 and the end cap 111 of the first housing 110.

[0156] For example, a first welding portion 51 may be provided on a surface of the circuit board 500 facing away from the end cap 111. A second welding portion (not shown) may be provided on the microphone circuit board 22. The first welding portion 51 and the second welding portion may be arranged facing each other and fixedly connected by welding, so that the microphone 200 can be fixedly connected and electrically connected to the circuit board 500. The circuit board 500 can be fixedly connected to the end cap 111 by means of adhesive 52, dispensing, threaded connection, etc. The first welding portion 51 of the circuit board 500 can also be connected to an electrical wire, so that the circuit board 500 can be electrically connected to other components of the electronic device 1000 via the electrical wire.

[0157] For example, the circuit board 500 may be provided with a first communication hole 501. The first communication hole 501 may extend through the circuit board 500 along the axis O1 of the electronic device 1000. The first communication hole 501 of the circuit board 500 may communicate with the second communication hole 1113 of the end cap 111. The first communication hole 501 of the circuit board 500 may also communicate with the first sound pickup hole 221 (see FIG. 2 ) of the microphone 200, thereby communicating with the first chamber 201 of the microphone 200. For example, the first sound channel 13 may be formed by a structural member of the electronic device 1000, such as the first housing 110 and the circuit board 500. The first communication hole 501 is a portion of the first sound channel 13, and the second communication hole 1113 is another portion of the first sound channel 13. Adhesive tape 52 may be provided around the second communication hole 1113 to seal the end cap 111 and the circuit board 500, thereby preventing sound from leaking through the gap between the end cap 111 and the circuit board 500. The first communication hole 501 and the second communication hole 1113 can together form the first sound channel 13 of the electronic device 1000. It is understood that due to the relatively small thickness of the adhesive backing 52, the portion of the first sound channel 13 formed by the through-holes in the adhesive backing 52 can be ignored. The first sound pickup port 11 of the electronic device 1000 can be connected to the first chamber 201 of the microphone 200 via the first sound channel 13.

[0158] It is understandable that the first sound channel 13 may be formed by structural components of the electronic device 1000 , for example, by the first housing 110 and the circuit board 500 of the electronic device 1000 .

[0159] As shown in Figures 16 and 17, the base 400 may include a partition 41 and an encapsulation plate 42. The encapsulation plate 42 is fixedly connected to the partition 41 and is located on the side of the partition 41 away from the first shell 110. The encapsulation plate 42 is located between the partition 41 and the second shell 120. The circumferential side surface of the partition 41 may be part of the circumferential side surface of the base 400, and the circumferential side surface of the encapsulation plate 42 may be part of the circumferential side surface 102 of the base 400. In other embodiments, the encapsulation plate 42 may be located on the inner side of the second shell 120, and the circumferential side surface of the encapsulation plate 42 may be located inward of the circumferential side surface of the base 400. It is understood that the base 400 may be an integrally formed structural component. That is, the partition 41 and the encapsulation plate 42 may be formed into a single structure through an integral molding process. Alternatively, the base 400 may be a spliced ​​structural component. For example, the partition 41 and the encapsulation plate 42 may be formed into a single integral structural component through splicing (e.g., mortise and tenon joints, snap-fit ​​joints) or fixing (e.g., welding, bonding, etc.).

[0160] In this embodiment, the packaging plate 42 may be adhesive-backed. Thus, the packaging plate 42 can not only cooperate with the partition 41 to form the internal sound channel of the electronic device 1000, but can also be used to connect the partition 41 to the second housing 120. This provides a "one-item, multiple-purpose" effect.

[0161] Fig. 18 is a schematic diagram of a portion of the electronic device 1000 shown in Fig. 15 at different angles. For example, Fig. 15 illustrates the first housing 110, the partition 41, and the circuit board 500.

[0162] As shown in Figures 17 and 18, the separator 41 may include a through hole 411, a plurality of spaced first grooves 412, and a second groove 413. The through hole 411 extends through the separator 41 along the axis O1 of the electronic device 1000. The plurality of first grooves 412 and second grooves 413 may be arranged on the side of the through hole 411 facing the packaging plate 42. The second groove 413 may connect the through hole 411 with the plurality of first grooves 412. The second groove 413 may be used to mount the acoustically resistive mesh 300.

[0163] For example, the through hole 411 may penetrate the bottom wall of the second groove 413. The first groove 412 may penetrate a portion of the groove sidewall 112 of the second groove 413. One end of the plurality of first grooves 412 may communicate with the second groove 413, one end of the plurality of first grooves 412 may communicate with the through hole 411 through the second groove 413, and the other end of the plurality of first grooves 412 may extend to the peripheral side surface of the separator 41.

[0164] As shown in Figures 17 and 18, the openings of the plurality of first grooves 412 are located on the side surface of the partition 41 facing the packaging plate 42. The packaging plate 42 can cover the first grooves 412. The groove openings of the first grooves 412 located on the peripheral side surface of the partition 41 and the edges of the peripheral side surface of the packaging plate 42 together form the second sound pickup opening 12. The inner walls of the first grooves 412 and a portion of the surface of the packaging plate 42 together form the second sound channel 14. The through hole 411 connects the second sound channel 14 with the second chamber 202 of the microphone 200.

[0165] In this embodiment of the present application, multiple first grooves 412 are formed in the separator 41 and covered with a packaging plate 42, so that the packaging plate 42 and the inner walls of the first grooves 412 together form the second sound channel 14 and the second sound pickup port 12. The second sound channel 14 and the second sound pickup port 12 can be formed by disassembling and machining. The molding process of the second sound channel 14 and the second sound pickup port 12 is relatively simple and easy to manufacture, which helps to improve product yield.

[0166] In the embodiment of the present application, the second sound pickup port 12 is located on the peripheral side surface 102 of the base body 400, and the second sound channel 14 is located inside the base body 400. The molding structure of the second sound pickup port 12 and the second sound channel 14 can be implemented by the above embodiment, or the second sound channel 14 and the second sound pickup port 12 can also be formed separately by the partition 41, with the second sound pickup port 12 located on the peripheral side surface of the partition 41.

[0167] Illustratively, the opening of the second groove 413 is located on a side of the partition 41 facing the packaging plate 42. The packaging plate 42 may also cover the second groove 413. The inner wall of the packaging plate 42, the second groove 413, and the wall of the through hole 411 together form a converging channel 15. The converging channel 15 connects the second chamber 202 of the microphone 200 with the plurality of second sound channels 14.

[0168] Exemplarily, the partition 41 may include a bottom plate portion 4101 and a protrusion 4102. The protrusion 4102 is connected to the bottom plate portion 4101 and is located on the side of the bottom plate portion 4101 facing away from the packaging plate 42. In Figure 17, dotted lines are used to schematically distinguish between the bottom plate portion 4101 and the protrusion 4102. It can be understood that the partition 41 can be an integrally formed structural member. That is, the bottom plate portion 4101 and the protrusion 4102 can be formed into an integral structure through an integral molding process. Alternatively, the partition 41 can also be a spliced ​​structural member. For example, the bottom plate portion 4101 and the protrusion 4102 can be formed into an integral structural member through a splicing method (such as mortise and tenon, snap-fit ​​process) or a fixing method (such as welding, bonding, etc.).

[0169] For example, the bottom plate portion 4101 and the protrusion 4102 can be roughly cylindrical, and the diameter of the protrusion 4102 can be smaller than that of the bottom plate portion 4101. The side wall 112 of the first shell 110 can be sleeved on the protrusion 4102 and connected to the protrusion 4102 and the bottom plate portion 4101. For example, the bottom plate portion 4101 of the partition 41 can be located on the side of the side wall 112 facing away from the first shell 110, and the protrusion 4102 of the partition 41 can be located on the inner side of the side wall 112. The through hole 411, the plurality of first grooves 412, and the second grooves 413 of the partition 41 can be provided in the protrusion 4102. The outer surface of the protrusion 4102 can form part of the circumferential side surface of the base body 400.

[0170] For example, the side surface of the microphone 200 facing away from the circuit board 500 can also be connected to the partition 41 of the base 400 by means of adhesive 43, dispensing, threaded connection, etc. The adhesive 43 can be arranged around the through hole 411 and seal the protrusion 4102 of the partition 41 and the microphone 200 to prevent sound from leaking through the gap between the protrusion 4102 of the partition 41 and the microphone 200. It can be understood that due to the small thickness of the adhesive 43, the portion of the merged channel 15 formed by the through hole on the adhesive 43 can be ignored. The through hole 411 of the partition 41 can be connected to the second sound pickup hole 211 of the microphone 200, thereby connecting to the second chamber 202 of the microphone 200. The partition 41 can also be fixedly connected to the first shell 110 by means of adhesive, dispensing, threaded connection, etc., and press the microphone 200.

[0171] In this embodiment, the electronic device 1000 has a first sound pickup opening 11 on the end surface 101 and multiple second sound pickup openings 12 on the peripheral side surface 102. The first sound pickup opening 11 is in communication with the first chamber 201 of the microphone 200, and the multiple second sound pickup openings 12 are in communication with the second chamber 202 of the microphone 200. This allows multiple sound pickup vectors to be formed between the multiple second sound pickup openings 12 and the first sound pickup opening 11. The vector summed up by adding the multiple sound pickup vectors aligns with the sensitivity direction of the microphone 200. The microphone 200 of the electronic device 1000 can effectively pick up sound from the direction of its sensitivity, meaning that the microphone 200 can achieve directional sound pickup. Furthermore, the microphone 200 can adjust the positional relationship between the multiple second sound pickup openings 12 and the first sound pickup opening 11 to adjust the direction of the sound pickup vectors, thereby changing the sensitivity direction of the microphone 200.

[0172] As shown in Figures 17 and 18, the acoustic resistance mesh 300 can be installed in the second groove 413 and cover the through-hole 411. For example, the acoustic resistance mesh 300 can be fixed to the bottom wall of the second groove 413 using adhesive 31, dispensing glue, or other methods. In this case, the acoustic resistance mesh 300 can be placed in the converging sound channel 15, so that sound waves entering from the second sound pickup port 12 pass through the acoustic resistance mesh 300 and enter the second chamber 202 of the microphone 200, acting on the other side of the diaphragm 231 of the microphone 200. It is understood that since the second groove 413 is located at the confluence of multiple second sound channels 14, the acoustic resistance mesh 300 can also be located at the confluence of multiple second sound channels 14. The acoustic resistance mesh 300 can simultaneously adjust sound waves from multiple second sound channels 14, achieving high consistency and good adjustment effect. The acoustic resistance mesh 300 may also be located at the confluence of multiple second sound channels 14. The acoustic resistance mesh 300 may simultaneously adjust the sound waves from multiple second sound channels 14 with high adjustment consistency and good adjustment effect.

[0173] In this embodiment, by providing an acoustic resistance mesh 300 in the converging channel 15, the amplitude and phase of the sound pressure acting on the other side of the diaphragm by sound waves entering the converging channel 15 from the multiple second sound pickup ports 12 can be changed. By adjusting the damping coefficient of the acoustic resistance mesh 300, the microphone 200 can be adjusted to have a cardioid, supercardioid, or figure-of-eight directivity. This adjustment is highly flexible, allowing the microphone 200 to achieve better directivity, thereby improving the directional sound pickup effect of the microphone 200. For example, by increasing or decreasing the damping coefficient of the acoustic resistance mesh 300, the amplitude of the sound waves entering the second chamber 202 of the microphone 200 can be reduced or increased, thereby adjusting the sound pressure difference between the amplitude of the sound waves in the second chamber 202 of the microphone 200 and the amplitude of the sound waves in the first chamber 201 of the microphone 200, thereby achieving a cardioid, supercardioid, or figure-of-eight directivity of the microphone 200. The principle of achieving the cardioid, supercardioid or figure-8 orientation of the microphone 200 by adjusting the damping coefficient of the acoustic resistance mesh 300 has been described in detail in the above embodiments. Please refer to the relevant description of the above embodiments and will not be elaborated on here.

[0174] In another embodiment, the electronic device 1000 may further include a damping member (not shown). The damping member may be provided on the path from the first sound pickup port 11 to the first chamber 201 of the microphone 200. Specifically, the damping member may be provided on the side of the circuit board 500 facing away from the microphone 200. It is understandable that the material and structure of the damping member may be the same as the material and structure of the acoustic resistance mesh 300. By increasing or decreasing the damping coefficient of the damping member, the amplitude of the sound wave entering the first chamber 201 of the microphone 200 can be reduced or increased, thereby adjusting the sound pressure difference between the amplitude of the sound wave in the first chamber 201 of the microphone 200 and the amplitude of the sound wave in the second chamber 202 of the microphone 200, thereby achieving the cardioid, supercardioid or figure-8 direction of the microphone 200. In addition, the sound pressure difference between the sound wave amplitude value of the first chamber 201 of the microphone 200 and the sound wave amplitude value of the second chamber 202 of the microphone 200 can be adjusted by simultaneously adjusting the damping coefficients of the acoustic resistance mesh 300 and the damping element, so as to adjust the microphone 200 to the desired cardioid or figure-8 direction, with better adjustment flexibility.

[0175] FIG19 is a polar coordinate diagram of the directional characteristics of the electronic device 1000 shown in FIG15 at an operating frequency of 1000 Hz.

[0176] As shown in FIG19 , the sensitivity direction of microphone 200 is along the axis O1 of electronic device 1000. The sensitivity direction of microphone 200 may coincide with the line connecting the 0° and 180° directions in FIG19 . In this case, electronic device 1000 can receive sound from the 0° and 180° directions, while suppressing sound from the 90° and 270° directions. In other words, electronic device 1000 can receive sound from the axis O1 of electronic device 1000 and suppress sound from the side surface 102 of electronic device 1000, thereby enabling directional sound pickup by microphone 200.

[0177] It can be understood that the acoustic path lengths for sound waves in the 0° and 180° directions to reach the first sound pickup port 11 and the second sound pickup port 12 are the longest, and the sound pressure difference between the two sides of the diaphragm 231 of the microphone 200 in the 0° and 180° directions is the largest. Therefore, the microphone 200 is sensitive to sound waves from the 0° and 180° directions, so that the electronic device 1000 can collect sounds from the 0° and 180° directions. The acoustic path lengths for sound waves in the 90° and 270° directions to reach the first sound pickup port 11 and the second sound pickup port 12 are the shortest, and the sound pressure difference between the two sides of the diaphragm 231 of the microphone 200 in the 90° and 270° directions is the smallest. Therefore, the microphone 200 is least sensitive to sound waves from the 90° and 270° directions, so that the electronic device 1000 can suppress sounds from the 90° and 270° directions.

[0178] In this embodiment, the electronic device 1000 picks up sound by providing a first sound pickup port 11 and a plurality of second sound pickup ports 12, so as to achieve directional sound pickup by the microphone 200 along the axis O1 of the electronic device 1000. When using the electronic device 1000 to pick up sound, the user holds the electronic device 1000 in their hand, and the first sound pickup port 11 faces the sound source (e.g., the user's mouth) along the axis O1 of the electronic device 1000. At this time, the sensitivity direction of the microphone 200 is along the axis O1 of the electronic device 1000. The microphone 200 can achieve directional sound pickup along the axis O1 of the electronic device 1000 and suppress sounds around the electronic device 1000.

[0179] It should be noted that if the sensitivity direction of the microphone 200 coincides with the line connecting the 90° direction and the 270° direction in Figure 18, the acoustic path length of the sound waves in the 90° direction and the 270° direction reaching the first sound pickup port 11 and the second sound pickup port 12 is the largest, so that the electronic device 1000 can collect sounds from the 90° direction and the 270° direction; the sound waves in the 0° direction and the 180° direction will reach the first sound pickup port 11 and the second sound pickup port 12 at the same time, so that the electronic device 1000 can suppress sounds from the 0° direction and the 180° direction.

[0180] It should be noted that the electronic device 1000 in the above embodiment connects the second sound pickup hole 211 of the microphone 200 and the multiple second sound channels 14 by providing a converging channel 15, thereby enabling the multiple second sound channels 14 to communicate with the second chamber 202 of the microphone 200 via the converging channel 15. The microphone 200 only needs to have one second sound pickup hole 211 to simultaneously connect multiple second sound channels 14, making the connection between the multiple second sound channels 14 and the second chamber 202 of the microphone 200 relatively simple and convenient. This also simplifies the manufacturing process of the microphone 200. In other embodiments, the electronic device 1000 may not be provided with the converging channel 15. The microphone 200 may have multiple second sound pickup holes 211, each of which is connected to the multiple second sound channels 14 in a one-to-one correspondence, so that each second sound pickup hole 12 can communicate with the second chamber 202 of the microphone 200 via the corresponding second sound channel 14.

[0181] As shown in Figures 16 to 18, the separator 41 may have a first channel 414. The first channel 414 is spaced apart from the through-hole 411 of the separator 41 and may penetrate the separator 41 along the axial direction of the electronic device 1000. The second housing 120 has a second channel 1203. The second channel 1203 may penetrate the second housing 120 along the axis O1 of the electronic device 1000 and communicate with the first channel 414 of the separator 41.

[0182] In this embodiment, the electronic device 1000 may further include a processor (not shown). The processor may be located inside the second housing 120. The first channel 414 and the second channel 1203 may allow power lines to pass through to electrically connect the circuit board 500 to the processor of the electronic device 1000. In other embodiments, the electronic device 1000 also does not include the circuit board 500, and the microphone circuit board 22 may be electrically connected to the processor of the electronic device 1000.

[0183] It is understood that the second housing 120 may further include a battery (not shown). The battery may be electrically connected to the microphone circuit board 22. The battery may be used to power the microphone 200. The second housing 120 may further include a Bluetooth communication module (not shown). The Bluetooth communication module may be used to enable communication between the electronic device 1000 and other electronic devices 1000.

[0184] In the above embodiments, the first sound channel 13, the second sound channel 14, and the combined sound channel 15 of the electronic device 1000 are primarily obtained by assembling multiple structural components (e.g., the first housing 110, the base 400, the circuit board 500, etc.) within the electronic device 1000 to form a joint space. This simple structure can reduce the number of structural components, thereby simplifying the manufacturing process of the electronic device 1000 and saving costs. In other embodiments of the present application, the above-mentioned sound channels of the electronic device 1000 can also be obtained by providing separate structural components. This will be illustrated below with reference to the relevant figures.

[0185] FIG20 is a schematic structural diagram of a sound pickup device 600 provided in an embodiment of the present application.

[0186] As shown in Figure 20, the sound pickup device 600 may include a first tube 61, multiple second tubes 62, a junction tube 63, and a microphone 200. The first tube 61 is located on one side of the microphone 200. The multiple second tubes 62 are located on the other side of the microphone 200. The junction tube 63 may be located between the microphone 200 and the multiple second tubes 62. The structure of the microphone 200 of this embodiment is similar to that of the microphone 200 of any of the above embodiments. For details about the microphone 200, please refer to the description of the microphone 200 of any of the above embodiments, and will not be elaborated on here.

[0187] Illustratively, a first sound channel 13 may be formed within the first tube 61 of the sound pickup device 600. The first sound channel 13 may communicate with the first chamber 201 of the microphone 200. A second sound channel 14 may be formed within the second tube 62 of the sound pickup device 600. Illustratively, the entrances 141 of the plurality of second sound channels 14 are staggered. A converging sound channel 15 may be formed within the converging sound channel 63 of the sound pickup device 600. The converging sound channel 15 may connect the second sound channels 14 with the second chamber 202 of the microphone 200, thereby allowing the plurality of second sound channels 14 to communicate with the second chamber 202 of the microphone 200 via the converging sound channel 15. The sound pickup device 600 forms the converging sound channel 15 by providing the converging sound channel 63. The converging sound channel 15 connects the second sound pickup hole 211 of the microphone 200 with the plurality of second sound channels 14, thereby allowing the plurality of second sound channels 14 to communicate with the second chamber 202 of the microphone 200 via the converging sound channel 15. The microphone 200 only needs to have one second sound pickup hole 211 to simultaneously connect to multiple second sound channels 14. The connection between the multiple second sound channels 14 and the second chamber 202 of the microphone 200 is relatively simple and convenient. This also simplifies the manufacturing process of the microphone 200. In other embodiments, the electronic device 1000 may not include the junction tube 63. The microphone 200 may have multiple second sound pickup holes 211, each of which is connected to the second sound channels 14 within the multiple second tubes 62 in a one-to-one correspondence. Thus, each second sound pickup port 12 can be connected to the second chamber 202 of the microphone 200 via the corresponding second sound channel 14.

[0188] In this embodiment, multiple vectors can be formed between the entrance of the first sound channel 13 of the sound pickup device 600 and the entrances of the multiple second sound channels 14. The multiple vectors can be superimposed by the principle of vector addition, and the sum of the multiple vectors after vector addition is consistent with the sensitivity direction of the microphone 200. The microphone 200 can better pick up the sound from the sensitivity direction of the microphone 200. That is, the microphone 200 can achieve directional sound pickup, so that the electronic device 1000 can achieve directional sound pickup. In addition, the positions of the first sound pickup port 11 and the multiple second sound pickup ports 12 can be combined with the shape of the pen-type device, so that when the pen-type device is used for sound pickup, the pen-type device can cooperate with the different holding habits of the user to better pick up the user's voice and effectively shield the influence of the surrounding environment noise, which is beneficial to the user experience.

[0189] For example, the inlets 141 of at least two of the plurality of second sound channels 14 face in different directions. It will be understood that the direction of the inlet 141 of the second sound channel 14 refers to a direction toward a side outside the electronic device 1000 in a direction perpendicular to the plane in which the inlet 141 of the second sound channel 14 lies. The inlets of the plurality of second sound channels 14 can be located in non-coplanar regions, which facilitates better arrangement of the positions of the plurality of second sound channels 14 and provides greater flexibility in the configuration of the sound pickup device 600.

[0190] Exemplarily, the center of the inlet 131 of the first sound channel 13 can be located on the axis O2 of the first tube 61. The inlets 141 of the multiple second sound channels 14 are coplanar, and the lengths of the lines connecting the inlets 141 of the multiple second sound channels 14 and the inlet 131 of the first sound channel 13 are equal. In this case, the inlets 141 of the multiple second sound channels 14 are symmetrically distributed relative to the axis O2 of the first tube 61. The multiple vectors formed between the inlets 141 of the multiple second sound channels 14 and the inlet 131 of the first sound channel 13 are symmetrically distributed relative to the axis O2 of the first tube 61 and are equal in size. The components of the multiple vectors parallel to the axis O2 of the first tube 61 can be superimposed, and the components of the multiple vectors perpendicular to the axis O2 of the first tube 61 can completely cancel each other out. Then, the sum of the superimposed multiple vectors is along the axis O2 of the first tube 61. That is, the sensitivity direction of the microphone 200 is along the axis O2 of the first tube 61. The microphone 200 can achieve directional sound pickup along the axis O2 of the first tube 61, thereby enabling the electronic device 1000 to achieve directional sound pickup. It should be understood that in this embodiment of the present application, the position of the inlet 141 of the second sound channel 14 is primarily defined by the center of the inlet 141 of the second sound channel 14. The coplanarity of the multiple inlets 141 of the second sound channel 14 means that the centers of the multiple inlets 141 of the second sound channel 14 are coplanar.

[0191] In some embodiments, the center of the inlet 131 of the first sound channel 13 is located on the axis O2 of the first tube 61. There may be two inlets 141 of the second sound channel 14. The planes of the two inlets 141 of the second sound channel 14 form an acute angle or an obtuse angle with the axis O2 of the first tube 61. In other embodiments, the center of the inlet 131 of the first sound channel 13 is located on the axis O2 passing through the first tube 61. There may be four inlets 141 of the second sound channel 14, and at least one inlet 141 of the second sound channel 14 is not coplanar with the inlets 141 of the other second sound channels 14. It will be appreciated that the sound pickup device 600 can adjust the sound pickup direction of the sound pickup device 600 by adjusting the relative positions of the multiple inlets 141 of the second sound channels 14 and the inlet 131 of the first sound channel 13, so that the sound pickup direction of the sound pickup device 600 forms an acute angle or an obtuse angle with the axis O2 of the first tube 61.

[0192] In other embodiments, the center of the inlet 131 of the first sound channel 13 may also be staggered with respect to the axis O2 of the first tube 61 .

[0193] As shown in FIG20 , the sound pickup device 600 may further include an acoustic resistance mesh 300. The acoustic resistance mesh 300 may be disposed within the converging pipe 63. That is, the acoustic resistance mesh 300 may be disposed within the converging channel 15. It is understood that by disposing the acoustic resistance mesh 300 within the converging channel 15, the amplitude and phase of the sound pressure acting on the other side of the diaphragm of the microphone 200 from the sound waves entering the converging channel 15 from the plurality of second sound pickup ports 12 can be changed. By adjusting the damping coefficient of the acoustic resistance mesh 300, the microphone 200 may be adjusted to a cardioid, supercardioid, or figure-8 orientation with high adjustment flexibility, thereby enabling the microphone 200 to obtain better directivity, thereby improving the directional sound pickup effect of the microphone 200. For example, by increasing or decreasing the damping coefficient of the acoustically resistive mesh 300, the amplitude of the sound waves entering the second chamber 202 of the microphone 200 can be reduced or increased, thereby adjusting the sound pressure difference between the amplitude of the sound waves in the second chamber 202 of the microphone 200 and the amplitude of the sound waves in the first chamber 201 of the microphone 200, thereby achieving a cardioid, supercardioid, or figure-of-eight directivity of the microphone 200. The principle of achieving a cardioid, supercardioid, or figure-of-eight directivity of the microphone 200 by adjusting the damping coefficient of the acoustically resistive mesh 300 has been described in detail in the above embodiments, and reference can be made to the relevant description of the above embodiments, so this will not be elaborated on here.

[0194] In this embodiment, the sound pickup device 600 may further include a damping member (not shown). The damping member may be provided in the first tube 61. That is, the damping member may be provided in the first sound channel 13. It is understandable that the material and structure of the damping member may be the same as the material and structure of the acoustic resistance mesh 300. By increasing or decreasing the damping coefficient of the damping member, the amplitude of the sound wave entering the first chamber 201 of the microphone 200 can be reduced or increased, thereby adjusting the sound pressure difference between the amplitude of the sound wave in the first chamber 201 of the microphone 200 and the amplitude of the sound wave in the second chamber 202 of the microphone 200, thereby achieving the cardioid, supercardioid or figure-8 direction of the microphone 200. In addition, the sound pressure difference between the sound wave amplitude value of the first chamber 201 of the microphone 200 and the sound wave amplitude value of the second chamber 202 of the microphone 200 can be adjusted by simultaneously adjusting the damping coefficients of the acoustic resistance mesh 300 and the damping element, so as to adjust the microphone 200 to the desired cardioid or figure-8 direction, with better adjustment flexibility.

[0195] The sound pickup device 600 in the above embodiment can be applied to an electronic device 1000 that needs to achieve directional sound pickup using a microphone 200. The following describes an electronic device 1000 including the sound pickup device 600 shown in FIG20 , in conjunction with the relevant drawings.

[0196] FIG21 is a schematic structural diagram of an electronic device 1000 including the sound pickup device 600 shown in FIG20 in an embodiment.

[0197] As shown in FIG21 , the electronic device 1000 may have an exterior surface 10 . The exterior surface 10 may have a first sound pickup opening 11 and a plurality of second sound pickup openings 12 . The plurality of second sound pickup openings 12 are spaced apart and spaced apart from the first sound pickup opening 11 .

[0198] The sound pickup device 600 can be located inside the electronic device 1000. The first sound pickup port 11 is disposed opposite and connected to the inlet 131 of the first sound channel 13 of the sound pickup device 600, thereby connecting the first sound pickup port 11 to the first chamber 201 of the microphone 200. Sound waves enter the first chamber 201 of the microphone 200 from the first sound pickup port 11 of the electronic device 1000 and act on one side of the diaphragm 231 of the microphone 200. The plurality of second sound pickup ports 12 are disposed opposite and connected to the inlet 141 of the plurality of second sound channels 14 of the sound pickup device 600 in a one-to-one correspondence, thereby connecting the plurality of second sound pickup ports 12 to the second chamber 202 of the microphone 200. Sound waves enter the second chamber 202 of the microphone 200 from the plurality of second sound pickup ports 12 of the electronic device 1000 and act on the other side of the diaphragm 231 of the microphone 200.

[0199] The multiple second sound pickup ports 12 of the electronic device 1000 and the first sound pickup port 11 each form multiple sound pickup vectors. Each sound pickup vector is oriented from the corresponding second sound pickup port 12 toward the first sound pickup port 11, and the magnitude of each sound pickup vector is positively correlated with the length of the path from the corresponding second sound pickup port 12 to the first sound pickup port 11. The sum of the multiple sound pickup vectors is consistent with the sensitivity direction of the microphone 200. It is understood that the sensitivity direction of the microphone 200 depends on the sum of the multiple sound pickup vectors.

[0200] In this embodiment, the electronic device 1000 is provided with a first sound pickup port 11 and a plurality of second sound pickup ports 12, wherein the first sound pickup port 11 is arranged opposite and connected to the inlet 131 of the first sound channel 13 of the sound pickup device 600, and the plurality of second sound pickup ports 12 are arranged opposite and connected to the inlet 141 of the plurality of second sound channels 14 of the sound pickup device 600 in a one-to-one correspondence. In this way, the electronic device 1000 can use the sound pickup device 600 to achieve directional sound pickup in the target direction. The principle of achieving directional sound pickup by the sound pickup device 600 has been described in detail in the above embodiment. Please refer to the relevant description of the above embodiment and will not be elaborated on here. For example, the electronic device 1000 can use the sound pickup device 600 to achieve directional sound pickup in the direction of the axis O2 of the first tube 61 of the sound pickup device 600, and suppress sound from the axis O2 perpendicular to the first tube 61 of the sound pickup device 600. Furthermore, electronic device 1000 can utilize sound pickup device 600 to adjust microphone 200 to a cardioid, supercardioid, or figure-of-eight pattern. The principle of adjusting the damping coefficient of acoustically resistive mesh 300 to achieve cardioid, supercardioid, or figure-of-eight pattern for microphone 200 has been described in detail in the above embodiments. For details, please refer to the relevant descriptions of the above embodiments and will not be elaborated upon here.

[0201] In some embodiments, by adjusting the installation position of the sound pickup device 600 inside the electronic device 1000, and correspondingly adjusting the positions of the first sound pickup port 11 and multiple second sound pickup ports 12 of the electronic device 1000, the axis O2 of the first tube 61 of the sound pickup device 600 can be parallel to the direction of the electronic device 1000 and the required sound pickup, so as to achieve directional sound pickup of the microphone 200 in the target direction.

[0202] The above, combined with the relevant drawings, mainly introduces how to achieve directional sound pickup by the microphone 200 when the pen-type device is a pen-type device. The following, combined with the relevant drawings, specifically introduces how to achieve directional sound pickup by the microphone 200 when the electronic device 1000 is a glasses-type device.

[0203] FIG22 is a schematic diagram of the structure of another electronic device 1000 provided in this application in one embodiment. For example, the electronic device 1000 may be a glasses-type device, such as augmented reality (AR) glasses, an AR helmet, or virtual reality (VR) glasses.

[0204] As shown in Figure 22, electronic device 1000 may include temples 71, a frame 72, and a microphone 200. There may be two temples 71, each connected to one end of the frame 72. The structure of microphone 200 in this embodiment is similar to that of microphone 200 in any of the above embodiments. For a detailed description of microphone 200, please refer to the description of microphone 200 in any of the above embodiments, and no further details will be given here.

[0205] For example, the end of the temple 71 connected to the frame 72 is provided with a first end surface 713. The end of the temple 71 away from the frame 72 is provided with a second end surface 714. The temple 71 also has a side surface 715 connecting the first end surface 713 and the second end surface 714. It is understood that the side surface 715 of the temple 71 can be a curved surface or formed by multiple interconnected flat surfaces.

[0206] Exemplarily, the side surface 715 of the temple 71 extends along the extension direction of the temple 71. It will be appreciated that the extension direction of the temple 71 may vary depending on the specific shape of the temple 71. For example, the temple 71 may include an extension portion 711 and an ear hook portion 712. The ear hook portion 712 may be bent relative to the extension portion 711. In other words, the ear hook portion 712 and the extension portion 711 are arranged at an angle. The end of the extension portion 711 away from the ear hook portion 712 may be connected to the frame 72. The first end surface 713 is located at the end of the extension portion 711 connected to the frame 72, and the second end surface 714 is located at the end of the temple 71 away from the frame 72. In this case, the extension direction of the temple 71 at the extension portion 711 is along the length direction of the extension portion 711. The extension direction of the temple 71 at the ear hook portion 712 is along the length direction of the ear hook portion 712. The extension direction of the temple 71 at the extension portion 711 intersects with the extension direction of the temple 71 at the ear hook portion 712. The extension direction of the temple 71 may also be the length direction of the temple 71. That is, the extension direction of the temple 71 may be the arrangement direction of the extension portion 711 and the ear hook portion 712.

[0207] As shown in Figure 22, the microphone 200 can be located inside the temple 71. For example, the microphone 200 can be located on the extension portion 711 of the temple 71. The microphone 200 is positioned closer to the first end surface 713 relative to the second end surface 714. The first end surface 713 of the temple 71 can be provided with a first sound pickup port 11. The side surface 715 of the temple 71 can be provided with a plurality of second sound pickup ports 12 spaced apart. For example, the plurality of second sound pickup ports 12 can be located on the extension portion 711 of the temple 71. The plurality of second sound pickup ports 12 are positioned closer to the first end surface 713 relative to the second end surface 714.

[0208] The electronic device 1000 of this embodiment has a first sound pickup port 11 on the first end surface 713 that is connected to the first chamber 201 of the microphone 200, and multiple second sound pickup ports 12 on the side surface 715 that are spaced apart and respectively connected to the second chamber 202 of the microphone 200. Multiple sound pickup vectors can be formed between the multiple second sound pickup ports 12 and the first sound pickup port 11. The multiple sound pickup vectors can be superimposed using the principle of vector addition, and the vectors resulting from the vector addition of the multiple sound pickup vectors are consistent with the sensitivity direction of the microphone 200. The microphone 200 can better pick up sound from the sensitivity direction of the microphone 200. That is, the microphone 200 can achieve directional sound pickup in the target direction, thereby enabling the electronic device 1000 to achieve directional sound pickup. Furthermore, the positional relationship between the multiple second sound pickup ports 12 and the first sound pickup port 11 can be adjusted to adjust the direction of the sound pickup vectors, thereby changing the sensitivity direction of the microphone 200. For the principle of how the microphone 200 achieves directional sound pickup, please refer to the relevant description of any possible implementation method of the above embodiments, and the details will not be repeated here.

[0209] For example, at least two second sound pickup ports 12 face different directions. It is understood that the orientation of a second sound pickup port 12 refers to a direction perpendicular to the plane in which the second sound pickup port 12 lies, toward the exterior of the electronic device 1000. Multiple second sound pickup ports 12 can be located in non-coplanar regions, which facilitates better arrangement of the positions of the multiple second sound pickup ports 12 and provides greater flexibility in the configuration of the electronic device 1000.

[0210] For example, the interior of the temple 71 includes a first sound channel 13, multiple second sound channels 14, and a converging sound channel 15. It is understood that the first sound channel 13, multiple second sound channels 14, and converging sound channel 15 can be formed by the temple 71. Alternatively, the first sound channel 13, multiple second sound channels 14, and converging sound channel 15 can be formed by separate structural members disposed on the interior side of the temple 71. The first sound channel 13 connects the first sound pickup port 11 with the first chamber 201 of the microphone 200. The multiple second sound channels 14 correspond one-to-one with and connect to the multiple second sound pickup ports 12. The multiple second sound channels 14 also connect to the second chamber 202 of the microphone 200.

[0211] It should be noted that the electronic device 1000 in the above embodiment connects the second sound pickup hole 211 of the microphone 200 and the multiple second sound channels 14 by providing a converging channel 15, thereby enabling the multiple second sound channels 14 to communicate with the second chamber 202 of the microphone 200 via the converging channel 15. The microphone 200 only needs to have one second sound pickup hole 211 to simultaneously connect multiple second sound channels 14, making the connection between the multiple second sound channels 14 and the second chamber 202 of the microphone 200 relatively simple and convenient. This also simplifies the manufacturing process of the microphone 200. In other embodiments, the electronic device 1000 may not be provided with the converging channel 15. The microphone 200 may have multiple second sound pickup holes 211, each of which is connected to the multiple second sound channels 14 in a one-to-one correspondence, so that each second sound pickup hole 12 can communicate with the second chamber 202 of the microphone 200 via the corresponding second sound channel 14.

[0212] As shown in Figure 22, the center of the first sound pickup port 11 can be located at the center of the first end surface 713 of the temple 71, and the plurality of second sound pickup ports 12 can be distributed symmetrically with respect to the extension direction of the temple 71. In this case, the sensitivity direction of the microphone 200 is parallel to the extension direction of the temple 71. The microphone 200 can better pick up sounds from the direction parallel to the extension direction of the temple 71. The microphone 200 can achieve directional sound pickup parallel to the extension direction of the temple 71. For example, the sensitivity direction of the microphone 200 is parallel to the extension direction of the extension portion 711 of the temple 71. The microphone 200 can achieve directional sound pickup parallel to the extension direction of the extension portion 711.

[0213] In other embodiments, the plurality of second sound pickup ports 12 may also be distributed in a non-center-symmetrical manner relative to the extension direction of the temple 71 .

[0214] In other embodiments, the center of the first sound pickup port 11 may also be staggered with the center of the first end surface 713 of the temple 71 .

[0215] As shown in FIG22 , the electronic device 1000 may further include an acoustic resistance mesh 300. The acoustic resistance mesh 300 may be disposed within the converging channel 15. It is understood that by disposing the acoustic resistance mesh 300 within the converging channel 15, the amplitude and phase of the sound pressure acting on the other side of the diaphragm from the sound waves entering the converging channel 15 from the plurality of second sound pickup ports 12 can be changed. By adjusting the damping coefficient of the acoustic resistance mesh 300, the microphone 200 can be adjusted to a cardioid, supercardioid, or figure-8 orientation with high adjustment flexibility, thereby enabling the microphone 200 to obtain better directivity, thereby improving the directional sound pickup effect of the microphone 200. For example, by increasing or decreasing the damping coefficient of the acoustically resistive mesh 300, the amplitude of the sound waves entering the second chamber 202 of the microphone 200 can be reduced or increased, thereby adjusting the sound pressure difference between the amplitude of the sound waves in the second chamber 202 of the microphone 200 and the amplitude of the sound waves in the first chamber 201 of the microphone 200, thereby achieving a cardioid, supercardioid, or figure-of-eight directivity of the microphone 200. The principle of achieving a cardioid, supercardioid, or figure-of-eight directivity of the microphone 200 by adjusting the damping coefficient of the acoustically resistive mesh 300 has been described in detail in the above embodiments, and reference can be made to the relevant description of the above embodiments, so this will not be elaborated on here.

[0216] In some embodiments, the electronic device 1000 may further include a damping member (not shown). The damping member may be provided in the first sound channel 13. It is understood that the material and structure of the damping member may be the same as the material and structure of the acoustic resistance mesh 300. By increasing or decreasing the damping coefficient of the damping member, the amplitude of the sound wave entering the first chamber 201 of the microphone 200 can be reduced or increased, thereby adjusting the sound pressure difference between the amplitude of the sound wave in the first chamber 201 of the microphone 200 and the amplitude of the sound wave in the second chamber 202 of the microphone 200, thereby achieving a cardioid, supercardioid, or figure-8 directivity of the microphone 200. In addition, the sound pressure difference between the amplitude of the sound wave in the first chamber 201 of the microphone 200 and the amplitude of the sound wave in the second chamber 202 of the microphone 200 can be adjusted by simultaneously adjusting the damping coefficients of the acoustic resistance mesh 300 and the damping member, so as to adjust the microphone 200 to the desired cardioid or figure-8 directivity, with better adjustment flexibility.

[0217] FIG23 is a schematic diagram of the structure of another electronic device 1000 provided in this application in one embodiment. For example, the electronic device 1000 may be a glasses-type device, such as augmented reality (AR) glasses, an AR helmet, or virtual reality (VR) glasses.

[0218] As shown in FIG23 , another electronic device 1000 provided by the present application is similar to the glasses-type device in the above-mentioned embodiment, except that the positions of the microphone 200, multiple sound channels, and the first sound pickup port 11 and multiple second sound pickup ports 12 in the electronic device 1000 of this embodiment are different. The following mainly describes the difference. For other structures of the electronic device 1000 of this embodiment and the arrangement of each structure, please refer to the relevant description of any possible implementation of the glasses-type device described above, and the details will not be repeated here. For example, for the structure and arrangement of the temples 71 and the frame 72, please refer to the relevant description of any possible implementation of the glasses-type device described above, and the details will not be repeated here.

[0219] As shown in Figure 23, the microphone 200 can be located inside the temple 71. For example, the microphone 200 can be located on the ear hook portion 712 of the temple 71. The microphone 200 is positioned closer to the second end surface 714 relative to the first end surface 713. The second end surface 714 of the temple 71 can be provided with a first sound pickup port 11. The side surface 715 of the temple 71 can be provided with a plurality of second sound pickup ports 12 spaced apart. For example, the plurality of second sound pickup ports 12 can be located on the ear hook portion 712 of the temple 71. The plurality of second sound pickup ports 12 are positioned closer to the second end surface 714 relative to the first end surface 713.

[0220] The electronic device 1000 of this embodiment is provided with a first sound pickup port 11 connected to the first cavity 201 of the microphone 200 on the second end surface 714, and a plurality of second sound pickup ports 12 spaced apart and respectively connected to the second cavity 202 of the microphone 200 on the side surface 715. A plurality of sound pickup vectors can be formed between the plurality of second sound pickup ports 12 and the first sound pickup port 11. The plurality of sound pickup vectors can be superimposed by the principle of vector addition to achieve directional sound pickup by the microphone 200 in the target direction, so that the electronic device 1000 can achieve directional sound pickup. In addition, the direction of the sound pickup vector can be adjusted by adjusting the positional relationship between the plurality of second sound pickup ports 12 and the first sound pickup port 11, thereby changing the sensitivity direction of the microphone 200. For the principle of how the microphone 200 achieves directional sound pickup, please refer to the relevant description of any possible implementation method of the above embodiment, and the details will not be repeated here.

[0221] For example, the interior of the temple 71 includes a first sound channel 13, multiple second sound channels 14, and a converging sound channel 15. It is understood that the first sound channel 13, multiple second sound channels 14, and converging sound channel 15 can be formed by the temple 71. Alternatively, the first sound channel 13, multiple second sound channels 14, and converging sound channel 15 can be formed by separate structural members disposed on the interior side of the temple 71. The first sound channel 13 connects the first sound pickup port 11 with the first chamber 201 of the microphone 200. The multiple second sound channels 14 correspond one-to-one with and connect to the multiple second sound pickup ports 12. The multiple second sound channels 14 also connect to the second chamber 202 of the microphone 200.

[0222] It should be noted that the electronic device 1000 in the above embodiment connects the second sound pickup hole 211 of the microphone 200 and the multiple second sound channels 14 by providing a converging channel 15, thereby enabling the multiple second sound channels 14 to communicate with the second chamber 202 of the microphone 200 via the converging channel 15. The microphone 200 only needs to have one second sound pickup hole 211 to simultaneously connect multiple second sound channels 14, making the connection between the multiple second sound channels 14 and the second chamber 202 of the microphone 200 relatively simple and convenient. This also simplifies the manufacturing process of the microphone 200. In other embodiments, the electronic device 1000 may not be provided with the converging channel 15. The microphone 200 may have multiple second sound pickup holes 211, each of which is connected to the multiple second sound channels 14 in a one-to-one correspondence, so that each second sound pickup hole 12 can communicate with the second chamber 202 of the microphone 200 via the corresponding second sound channel 14.

[0223] As shown in Figure 23, the center of the first sound pickup port 11 can be located at the center of the second end surface 714 of the temple 71, and the multiple second sound pickup ports 12 can be distributed in a centrally symmetrical manner relative to the extension direction of the temple 71. In this case, the sensitivity direction of the microphone 200 is parallel to the extension direction of the temple 71. The microphone 200 can better pick up sounds from the direction parallel to the extension direction of the temple 71. The microphone 200 can achieve directional sound pickup parallel to the extension direction of the temple 71. For example, the sensitivity direction of the microphone 200 is parallel to the extension direction of the ear hook 712 of the temple 71. The microphone 200 can achieve directional sound pickup parallel to the extension direction of the ear hook 712.

[0224] In other embodiments, the plurality of second sound pickup ports 12 may also be distributed in a non-center-symmetrical manner relative to the extension direction of the temple 71 .

[0225] In other embodiments, the center of the first sound pickup port 11 may also be staggered with the center of the first end surface 713 of the temple 71 .

[0226] The above, combined with the relevant drawings, mainly describes how electronic device 1000 implements directional sound pickup when it is a pen-type device and a glasses-type device. The following, combined with the relevant drawings, specifically describes how microphone 200 implements directional sound pickup when electronic device 1000 is a tablet-type device.

[0227] FIG24 is a schematic diagram of the structure of another electronic device 1000 provided by the present application in one embodiment. For example, the electronic device 1000 may be a tablet, a drawing board, a mobile phone, a smart watch, etc.

[0228] As shown in FIG24 , the electronic device 1000 may include a housing 100, a display screen 800, and a microphone 200. The display screen 800 may be mounted on the housing 100. The microphone 200 may be mounted inside the housing 100.

[0229] Exemplarily, the housing 100 may include a first side surface 103, a second side surface 104, and a bottom surface 105 connecting the first side surface 103 and the second side surface 104. The first side surface 103 is connected to the second side surface 104, and the bottom surface 105 is disposed opposite to the display screen 800.

[0230] For example, the first side surface 103 has a first sound pickup opening 11. The second side surface 104 has at least one second sound pickup opening 12. At least one second sound pickup opening 12 is also present on the first side surface 103 or the bottom surface 105. It will be appreciated that in this embodiment, at least one second sound pickup opening 12 is located on the second side surface 104, and at least one second sound pickup opening 12 is located on the first side surface 103 or the bottom surface 105. Thus, the at least two second sound pickup openings 12 of the electronic device 1000 face different directions.

[0231] For example, the interior of the housing 100 may include a first sound channel 13, multiple second sound channels 14, and a converging sound channel 15. It is understood that the first sound channel 13, multiple second sound channels 14, and converging sound channel 15 may be formed by the housing 100. Alternatively, the first sound channel 13, multiple second sound channels 14, and converging sound channel 15 may be formed by separate structural components disposed on the interior of the housing 100. The first sound channel 13 may connect the first sound pickup port 11 with the first chamber 201 of the microphone 200. Sound waves may enter the second chamber 202 of the microphone 200 from the first sound pickup port 11 through the first sound channel 13 and act on one side of the diaphragm 231 of the microphone 200. The multiple second sound channels 14 correspond one-to-one with and are connected to the multiple second sound pickup ports 12. The converging sound channel 15 may connect the multiple second sound channels 14 with the second chamber 202 of the microphone 200, thereby connecting the multiple second sound pickup ports 12 to the second chamber 202 of the microphone 200. Sound waves can enter the second chamber 202 of the microphone 200 from the plurality of second sound pickup ports 12 of the electronic device 1000 through the second sound channel 14 and the merged sound channel 15 , and act on the other side of the diaphragm 231 of the microphone 200 .

[0232] The multiple second sound pickup ports 12 and the first sound pickup port 11 of the electronic device 1000 respectively form multiple sound pickup vectors. The multiple sound pickup vectors can be superimposed through the principle of vector addition to achieve directional sound pickup by the microphone 200 in the target direction, so that the electronic device 1000 can achieve directional sound pickup. In addition, the direction of the sound pickup vector can be adjusted by adjusting the positional relationship between the multiple second sound pickup ports 12 and the first sound pickup port 11, thereby changing the sensitivity direction of the microphone 200. For the principle of how the microphone 200 achieves directional sound pickup, please refer to the relevant description of any possible implementation method of the above embodiment, and the details will not be repeated here. In addition, the position of the first sound pickup port 11 and the multiple second sound pickup ports 12 can be combined with the shape of the tablet device, so that when the tablet device is used to pick up sound, the tablet device can adapt to the user's usage habits, and the sensitivity direction of the microphone 200 can be towards the front of the user, so that the tablet device can better collect the sound in front of the user and effectively shield the influence of the surrounding noise, which is beneficial to the user experience.

[0233] It should be noted that the electronic device 1000 in the above embodiment connects the second sound pickup hole 211 of the microphone 200 and the multiple second sound channels 14 by providing a converging channel 15, thereby enabling the multiple second sound channels 14 to communicate with the second chamber 202 of the microphone 200 via the converging channel 15. The microphone 200 only needs to have one second sound pickup hole 211 to simultaneously connect multiple second sound channels 14, making the connection between the multiple second sound channels 14 and the second chamber 202 of the microphone 200 relatively simple and convenient. This also simplifies the manufacturing process of the microphone 200. In other embodiments, the electronic device 1000 may not be provided with the converging channel 15. The microphone 200 may have multiple second sound pickup holes 211, each of which is connected to the multiple second sound channels 14 in a one-to-one correspondence, so that each second sound pickup hole 12 can communicate with the second chamber 202 of the microphone 200 via the corresponding second sound channel 14.

[0234] As shown in FIG24 , the electronic device 1000 may further include an acoustic resistance mesh 300. The acoustic resistance mesh 300 may be disposed within the converging channel 15. It is understood that by disposing the acoustic resistance mesh 300 within the converging channel 15, the amplitude and phase of the sound pressure acting on the other side of the diaphragm from the sound waves entering the converging channel 15 from the plurality of second sound pickup ports 12 can be changed. By adjusting the damping coefficient of the acoustic resistance mesh 300, the microphone 200 can be adjusted to a cardioid, supercardioid, or figure-8 orientation with high adjustment flexibility, thereby enabling the microphone 200 to obtain better directivity, thereby improving the directional sound pickup effect of the microphone 200. For example, by increasing or decreasing the damping coefficient of the acoustically resistive mesh 300, the amplitude of the sound waves entering the second chamber 202 of the microphone 200 can be reduced or increased, thereby adjusting the sound pressure difference between the amplitude of the sound waves in the second chamber 202 of the microphone 200 and the amplitude of the sound waves in the first chamber 201 of the microphone 200, thereby achieving a cardioid, supercardioid, or figure-of-eight directivity of the microphone 200. The principle of achieving a cardioid, supercardioid, or figure-of-eight directivity of the microphone 200 by adjusting the damping coefficient of the acoustically resistive mesh 300 has been described in detail in the above embodiments, and reference can be made to the relevant description of the above embodiments, so this will not be elaborated on here.

[0235] In some embodiments, the electronic device 1000 may further include a damping member (not shown). The damping member may be provided in the first sound channel 13. It is understood that the material and structure of the damping member may be the same as the material and structure of the acoustic resistance mesh 300. By increasing or decreasing the damping coefficient of the damping member, the amplitude of the sound wave entering the first chamber 201 of the microphone 200 can be reduced or increased, thereby adjusting the sound pressure difference between the amplitude of the sound wave in the first chamber 201 of the microphone 200 and the amplitude of the sound wave in the second chamber 202 of the microphone 200, thereby achieving a cardioid, supercardioid, or figure-8 directivity of the microphone 200. In addition, the sound pressure difference between the amplitude of the sound wave in the first chamber 201 of the microphone 200 and the amplitude of the sound wave in the second chamber 202 of the microphone 200 can be adjusted by simultaneously adjusting the damping coefficients of the acoustic resistance mesh 300 and the damping member, so as to adjust the microphone 200 to the desired cardioid or figure-8 directivity, with better adjustment flexibility.

[0236] FIG25 is a schematic diagram of the structure of another electronic device 1000 provided by the present application in one embodiment. For example, the electronic device 1000 may be a tablet, a drawing board, a mobile phone, a smart watch, etc.

[0237] As shown in Figure 25, another electronic device 1000 provided by this application is similar to the tablet device in the above embodiment, except that the position of the first sound pickup port 11 in the electronic device 1000 of this embodiment is different. The following mainly describes the difference here. For other structures of the electronic device 1000 of this embodiment and the arrangement of each structure, please refer to the relevant description of any possible implementation of the above tablet device, and the details will not be repeated here. For example, for the structure of the housing 100 and the arrangement of the housing 100 and the display screen 800, please refer to the relevant description of any possible implementation of the above tablet device, and the details will not be repeated here.

[0238] In this embodiment, the second side surface 104 has a first sound pickup opening 11. The first side surface 103 has at least one second sound pickup opening 12. The second side surface 104 or the bottom surface 105 has at least one second sound pickup opening 12. It will be appreciated that in this embodiment, at least one second sound pickup opening 12 is located on the first side surface 103, and at least one second sound pickup opening 12 is located on the second side surface 104 or the bottom surface 105. Thus, the at least two second sound pickup openings 12 of the electronic device 1000 face different directions.

[0239] The multiple second sound pickup ports 12 and the first sound pickup port 11 of the electronic device 1000 respectively form multiple sound pickup vectors. The multiple sound pickup vectors can be superimposed through the principle of vector addition to achieve directional sound pickup by the microphone 200 in the target direction, so that the electronic device 1000 can achieve directional sound pickup. In addition, the direction of the sound pickup vector can be adjusted by adjusting the positional relationship between the multiple second sound pickup ports 12 and the first sound pickup port 11, thereby changing the sensitivity direction of the microphone 200. For the principle of how the microphone 200 achieves directional sound pickup, please refer to the relevant description of any possible implementation method of the above embodiment, and the details will not be repeated here. In addition, the position of the first sound pickup port 11 and the multiple second sound pickup ports 12 can be combined with the shape of the tablet device, so that when the tablet device is used to pick up sound, the tablet device can adapt to the user's usage habits, and the sensitivity direction of the microphone 200 can be towards the front of the user, so that the tablet device can better collect the sound in front of the user and effectively shield the influence of the surrounding noise, which is beneficial to the user experience.

[0240] FIG26 is a schematic diagram of the structure of another electronic device 1000 provided by the present application in one embodiment. For example, the electronic device 1000 may be a tablet, a drawing board, a mobile phone, a smart watch, etc.

[0241] As shown in FIG26 , another electronic device 1000 provided by the present application is similar to the tablet device in the above embodiment, except that the position of the first sound pickup port 11 in the electronic device 1000 of this embodiment is different. The following mainly describes the difference here. For other structures of the electronic device 1000 of this embodiment and the arrangement of each structure, please refer to the relevant description of any possible implementation of the above tablet device, and the details will not be repeated here. For example, for the structure of the housing 100 and the arrangement of the housing 100 and the display screen 800, please refer to the relevant description of any possible implementation of the above tablet device, and the details will not be repeated here.

[0242] In this embodiment, a first sound pickup opening 11 is formed at the junction of the first side surface 103 and the second side surface 104. The first side surface 103 has at least one second sound pickup opening 12. The second side surface 104 or the bottom surface 105 also has at least one second sound pickup opening 12. It will be appreciated that in this embodiment, at least one second sound pickup opening 12 is located on the first side surface 103, and at least one second sound pickup opening 12 is located on the second side surface 104 or the bottom surface 105. Thus, the at least two second sound pickup openings 12 of the electronic device 1000 face different directions.

[0243] The multiple second sound pickup ports 12 and the first sound pickup port 11 of the electronic device 1000 respectively form multiple sound pickup vectors. The multiple sound pickup vectors can be superimposed through the principle of vector addition to achieve directional sound pickup by the microphone 200 in the target direction, so that the electronic device 1000 can achieve directional sound pickup. In addition, the direction of the sound pickup vector can be adjusted by adjusting the positional relationship between the multiple second sound pickup ports 12 and the first sound pickup port 11, thereby changing the sensitivity direction of the microphone 200. For the principle of how the microphone 200 achieves directional sound pickup, please refer to the relevant description of any possible implementation method of the above embodiment, and the details will not be repeated here. In addition, the position of the first sound pickup port 11 and the multiple second sound pickup ports 12 can be combined with the shape of the tablet device, so that when the tablet device is used to pick up sound, the tablet device can adapt to the user's usage habits, and the sensitivity direction of the microphone 200 can be towards the front of the user, so that the tablet device can better collect the sound in front of the user and effectively shield the influence of the surrounding noise, which is beneficial to the user experience.

[0244] In some embodiments, the display screen 800 may also have a third sound pickup port. The interior of the housing 100 may also have a third sound channel. The third sound channel may be formed by the housing 100 or by a separate structural member disposed on the interior of the housing 100. The third sound channel connects the third sound pickup port with the converging sound channel 15, thereby connecting the third sound pickup port to the second chamber 202 of the microphone 200. Sound waves can enter the second chamber 202 of the microphone 200 from the multiple third sound pickup ports of the electronic device 1000 through the third sound channel and the converging sound channel 15, and act on the other side of the diaphragm 231 of the microphone 200. It is understood that the function of the third sound pickup port is similar to that of the second sound pickup port 12, and a sound pickup vector can also be formed between the third sound pickup port and the first sound pickup port 11. The sound pickup vector formed between the third sound pickup port and the first sound pickup port 11, and the sound pickup vector formed between the second sound pickup port and the first sound pickup port 11, when added together, align with the sensitivity direction of the microphone 200. The microphone 200 of the electronic device 1000 can effectively pick up sound from the direction of its sensitivity, that is, the microphone 200 can achieve directional sound pickup, thereby enabling the electronic device 1000 to achieve directional sound pickup. Furthermore, the direction of the sound pickup vector can be adjusted by adjusting the positional relationship between the second sound pickup openings 12, the third sound pickup openings, and the first sound pickup opening 11, thereby changing the direction of the sensitivity of the microphone 200.

[0245] It should be noted that all the above drawings are for illustrative purposes only and do not represent the actual size of the product. Furthermore, the dimensional ratios between the components in the drawings are not intended to limit the actual product of the present application.

[0246] The above are only some of the embodiments of this application, and the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. An electronic device (1000), characterized in that The electronic device (1000) has an exterior surface (10), the exterior surface (10) having a first sound pickup port (11) and a plurality of second sound pickup ports (12) distributed at intervals, each second sound pickup port (12) being spaced apart from the first sound pickup port (11); The electronic device (1000) has a microphone (200), a first sound channel (13), and a plurality of second sound channels (14) inside. The first sound channel (13) is connected to the first sound pickup port (11) and the first chamber (201) of the microphone (200). The plurality of second sound channels (14) correspond to and are connected to the plurality of second sound pickup ports (12) one by one. The second sound channels (14) are connected to the second chamber (202) of the microphone (200). The first chamber (201) of the microphone (200) and the second chamber (202) of the microphone (200) are respectively located on both sides of the diaphragm (231) of the microphone (200).

2. The electronic device (1000) according to claim 1, characterized in that The electronic device (1000) further comprises a converging sound channel (15) inside, wherein the converging sound channel (15) connects the plurality of second sound channels (14) with the second chamber (202) of the microphone (200); The electronic device (1000) further comprises an acoustic resistance mesh (300), wherein the acoustic resistance mesh (300) is provided on the converging sound channel (15).

3. The electronic device (1000) according to claim 1, characterized in that The electronic device (1000) is a pen-type device; The exterior surface (10) includes an end surface (101) and a peripheral side surface (102) connected to the periphery of the end surface (101); the end surface (101) intersects with the axis (O1) of the electronic device (1000); the peripheral side surface (102) is arranged around the axis (O1) of the electronic device (1000); the microphone (200) is located on the inner side of the peripheral side surface (102); the first sound pickup port (11) is located on the end surface (101); and the plurality of second sound pickup ports (12) are located on the peripheral side surface (102).

4. The electronic device (1000) according to claim 3, characterized in that The sensitivity direction of the microphone (200) is parallel to the axis (O1) of the electronic device (1000).

5. The electronic device (1000) according to claim 4, characterized in that The plurality of second sound pickup ports (12) are coplanar, and the plane where the plurality of second sound pickup ports (12) are located is perpendicular to the axis (O1) of the electronic device (1000).

6. The electronic device (1000) according to claim 5, characterized in that The center of the first sound pickup port (11) is located on the axis (O1) of the electronic device (1000), and the plurality of second sound pickup ports (12) are symmetrically distributed relative to the center of the axis (O1) of the electronic device (1000).

7. The electronic device (1000) according to claim 4, characterized in that The number of the second sound pickup ports (12) is two or three, and the planes where all the second sound pickup ports (12) are located form an acute angle or an obtuse angle with the axis (O1) of the electronic device (1000); or, The number of the second sound pickup ports (12) is greater than three, and at least one of the second sound pickup ports (12) is not coplanar with the other second sound pickup ports (12).

8. The electronic device (1000) according to any one of claims 3 to 7, characterized in that The electronic device (1000) comprises a first shell (110), a second shell (120) and a base (400), wherein the first shell (110), the base (400) and the second shell (120) are arranged along an axis (O1) of the electronic device (1000); The surface of the first shell (110) on one side facing away from the second shell (120) forms the end surface (101), and the peripheral side surface of the first shell (110), the peripheral side surface of the base (400), and the peripheral side surface of the second shell (120) together form at least a portion of the peripheral side surface (102); The microphone (200) is located on the inner side of the first shell (110), the second sound pickup port (12) is located on the peripheral side (102) of the seat (400), and the second sound channel (14) is located on the seat (400).

9. The electronic device (1000) according to claim 8, characterized in that The seat (400) comprises a partition (41) and a packaging plate (42), wherein the packaging plate (42) is fixedly connected to the partition (41) and is located on a side of the partition (41) away from the first shell (110); The separator (41) is provided with a through hole (411) and a plurality of first grooves (412) arranged at intervals, the through hole (411) passes through the separator (41) along the axis (O1) of the electronic device (1000), the openings of the plurality of first grooves (412) are located on a side surface of the separator (41) facing the packaging board (42), one end of the plurality of first grooves (412) is communicated with the through hole (411), and the other end of the plurality of first grooves (412) extends to the peripheral side surface (102) of the separator (41); The packaging plate (42) covers the first groove (412), the packaging plate (42) and the inner wall of the first groove (412) together enclose the second sound channel (14) and the second sound pickup port (12), and the through hole (411) connects the second sound channel (14) and the second chamber (202) of the microphone (200).

10. The electronic device (1000) according to claim 9, characterized in that The seat body (400) partition (41) further includes a second groove (413), which is arranged on a side of the through hole (411) facing the packaging plate (42) and connects the through hole (411) with a plurality of the first grooves (412), and is used for installing the acoustic resistance mesh (300).

11. The electronic device (1000) according to claim 8, characterized in that The electronic device (1000) further comprises a circuit board (500), wherein the circuit board (500) is located inside the first housing (110); The circuit board (500) is provided with a first communication hole (501), the first communication hole (501) passes through the circuit board (500) along the axis (O1) of the electronic device (1000), and the first communication hole (501) is a part of the first sound channel (13).

12. The electronic device (1000) according to claim 11, characterized in that The first housing (110) comprises an end cover (111) and a side wall (112), wherein the side wall (112) is connected to the periphery of the end cover (111), and the side wall (112) extends along the axis (O1) of the electronic device (1000); The end cover (111), the circuit board (500) and the microphone (200) are arranged along an axis (O1) of the electronic device (1000), and the circuit board (500) connects the end cover (111) and the circuit board (22) of the microphone (200); The end cover (111) is provided with a second communicating hole (1113), the second communicating hole (1113) passing through the end cover (111) along the axis (O1) of the electronic device (1000), and the second communicating hole (1113) is another part of the first sound channel (13).

13. The electronic device (1000) according to claim 1 or 2, characterized in that The electronic device (1000) is a glasses-type device, comprising a temple (71) and a frame (72), wherein the temple (71) is connected to the frame (72); the microphone (200), the first sound channel (13), and the plurality of second sound channels (14) are located inside the temple (71); The end of the temple (71) connected to the frame (72) is provided with a first end surface (713), and the temple (71) is further provided with a side surface (715) connected to the first end surface (713), and the side surface (715) extends along the extension direction of the temple (71); the first sound pickup port (11) is located on the first end surface (713), and the plurality of second sound pickup ports (12) are located on the side surface (715); or, The end of the temple (71) away from the frame (72) is provided with a second end surface (714), and the temple (71) is also provided with a side surface (715) connected to the second end surface (714), and the side surface (715) extends along the extension direction of the temple (71); the first sound pickup port (11) is located on the second end surface (714), and the plurality of second sound pickup ports (12) are located on the side surface (715).

14. The electronic device (1000) according to claim 13, characterized in that The sensitivity direction of the microphone (200) is parallel to the extension direction of the temple (71).

15. The electronic device (1000) according to claim 1 or 2, characterized in that The electronic device (1000) is a tablet device, comprising a housing (100) and a display screen (800), wherein the display screen (800) is mounted on the housing (100); the microphone (200), the first sound channel (13), and the plurality of second sound channels (14) are located inside the housing (100); The housing (100) comprises a first side surface (103), a second side surface (104), and a bottom surface (105) connecting the first side surface (103) and the second side surface (104), wherein the first side surface (103) is connected to the second side surface (104), and the bottom surface (105) is arranged opposite to the display screen (800); The first sound pickup port (11) is located on the first side surface (103), at least one of the second sound pickup ports (12) is located on the second side surface (104), and at least one of the second sound pickup ports (12) is located on the first side surface (103) or the bottom surface (105); or, The first sound pickup port (11) is located on the second side surface (104), at least one of the second sound pickup ports (12) is located on the first side surface (103), and at least one of the second sound pickup ports (12) is located on the second side surface (104) or the bottom surface (105); or, The first sound pickup port (11) is located at the connection between the first side surface (103) and the second side surface (104), at least one of the second sound pickup ports (12) is located on the first side surface (103), and at least one of the second sound pickup ports (12) is located on the second side surface (104) or the bottom surface (105).

16. A sound pickup device (600), applied to an electronic device (1000), characterized in that: The sound pickup device (600) comprises a first tube (61), a microphone (200), and a plurality of second tubes (62), wherein the first tube (61) is located on one side of the microphone (200), and the plurality of second tubes (62) are located on the other side of the microphone (200); A first sound channel (13) is formed in the first tube (61), and the first sound channel (13) is connected to the first chamber (201) of the microphone (200); A second sound channel (14) is formed in the second tube (62), and a plurality of the second sound channels (14) are all connected to the second chamber (202) of the microphone (200), and the entrances (141) of the plurality of the second sound channels (14) are staggered.

17. The sound pickup device (600) according to claim 16, characterized in that The sound pickup device (600) further comprises a merging pipe (63), the merging pipe (63) being located between the microphone (200) and the plurality of second pipes (62), a merging sound channel (15) being formed in the merging pipe (63), the merging sound channel (15) being in communication with the second sound channel (14) and the second chamber (202) of the microphone (200); The sound pickup device (600) further comprises a sound-resistance mesh (300), and the sound-resistance mesh (300) is arranged in the converging pipe (63).

18. The sound pickup device (600) according to claim 16, characterized in that The inlets (141) of at least two of the plurality of second sound channels (14) face different directions.

19. The sound pickup device (600) according to claim 18, characterized in that The inlets (141) of the plurality of second sound channels (14) are coplanar, and the lengths of the lines connecting the inlets (141) of the plurality of second sound channels (14) and the inlet (131) of the first sound channel (13) are equal.

20. An electronic device (1000), characterized in that The sound pickup device (600) comprises any one of claims 16 to 19, wherein the sound pickup device (600) is located inside the electronic device (1000); The electronic device (1000) has an exterior surface (10), and the exterior surface (10) has a first sound pickup port (11) and a plurality of second sound pickup ports (12). The first sound pickup port (11) is arranged opposite to and communicates with an inlet (131) of a first sound channel (13) of the sound pickup device (600), and the plurality of second sound pickup ports (12) are arranged opposite to and communicates with an inlet (141) of a plurality of second sound channels (14) of the sound pickup device (600) in a one-to-one correspondence.

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