Earphone

Abstract

The present application discloses an earphone. The earphone comprises an ear hook and a sound production part which are connected to each other; when being worn, the ear hook is arranged hanging between the auricle and the head of a user, and the sound production part is located at the front side of the auricle; the sound production part comprises a core housing; the ear hook comprises an adapter housing and a hook portion; a mounting recess is formed inside the adapter housing; the mounting recess has a first recess wall and a second recess wall which are opposite to each other, and a mounting opening between the first recess wall and the second recess wall; a sound receiving hole is formed in the adapter housing; and a sound outlet end of the sound receiving hole is located at the first recess wall. The earphone further comprises a microphone and a supporting plate; the microphone and the supporting plate are mounted between the first recess wall and the second recess wall through the mounting opening; the supporting plate and the microphone are stacked, and the supporting plate is located between the microphone and the second recess wall, and is configured to press the microphone against the first recess wall; and the microphone collects sound outside the earphone by means of the sound receiving hole. By means of the described method, in the present application, the assembly difficulty of the microphone can be reduced, thereby reducing the assembly difficulty of the earphone and also improving the airtightness between the microphone and the sound receiving hole, thus improving the sound receiving effect of the microphone.

Description

earphone [Technical Field]

[0001] This application relates to the technical field of electronic devices, and in particular to headphones. [Background Technology]

[0002] With the increasing popularity of electronic devices, they have become indispensable social and entertainment tools in people's daily lives, and people's demands for electronic devices are also getting higher and higher. Electronic devices such as headphones and smart glasses are also widely used in people's daily lives. They can be used in conjunction with terminal devices such as mobile phones and computers to provide users with an auditory feast.

[0003] As the application scenarios of headphones become more complex, modern headphones are usually equipped with microphones to collect the user's voice. However, microphones are difficult to fix and install in the headphone shell, and the poor sealing of microphones also increases the difficulty of headphone manufacturing.

[0004] [Summary of the Invention]

[0005] To address the aforementioned technical problems, this application provides a pair of headphones. The headphones include ear hooks and a sound-emitting part connected to each other. In the wearing state, the ear hooks are positioned between the user's ear and head, and the sound-emitting part is located on the front side of the ear. The sound-emitting part includes a core housing, and the ear hooks include a connecting housing and a hook-shaped part. The connecting housing connects the core housing and the hook-shaped part, and has a mounting groove inside. The mounting groove has a first groove wall and a second groove wall opposite to each other, and a mounting opening between the first and second groove walls. The connecting housing has a sound-receiving hole, with the sound-emitting end of the sound-receiving hole located on the first groove wall. The headphones also include a microphone and a support plate. The microphone and support plate are mounted between the first and second groove walls through the mounting opening. The support plate and microphone are stacked, and the support plate is located between the microphone and the second groove wall, used to press the microphone against the first groove wall. The microphone collects external sound through the sound-receiving hole.

[0006] In some embodiments, the earphone includes a flexible circuit board and a main control circuit board. The main control circuit board is disposed in the housing of the mechanism, with the mounting opening facing the main control circuit board. A portion of the flexible circuit board extends into the mounting groove through the mounting opening and electrically connects the microphone to the main control circuit board.

[0007] In some embodiments, the support plate, microphone, and a portion of the flexible circuit board are interference-fitted with the mounting groove along the spacing direction between the first groove wall and the second groove wall.

[0008] In some embodiments, a dustproof mesh assembly is provided in the mounting slot, and the dustproof mesh assembly is located between the first slot wall and the microphone.

[0009] In some embodiments, a portion of the flexible circuit board is located between the microphone and the protective mesh assembly, the sound output end of the sound receiving hole is connected to the sound acquisition area of ​​the microphone, and the protective mesh assembly, the portion of the flexible circuit board, and the microphone are all pressed against the first groove wall by the support plate.

[0010] In some embodiments, the adapter housing includes a spacer for forming a mounting groove, the second groove wall being the side surface of the spacer facing the mounting groove, and the spacer having a groove.

[0011] In some embodiments, the groove opening faces the same direction as the mounting opening, and the length direction of the groove is set along the depth direction of the mounting groove.

[0012] In some embodiments, the support plate is made of metal or rigid plastic.

[0013] In some embodiments, the sound-emitting part has a connecting end for connecting an ear hook and a free end disposed opposite to the connecting end. The sound-emitting part has a length direction, a width direction and a thickness direction that are orthogonal to each other. The depth direction of the mounting groove is inclined relative to the length direction. The length direction is the spacing direction between the connecting end and the free end. The thickness direction is the direction in which the sound-emitting part faces or moves away from the auricle when worn.

[0014] In some embodiments, at least a portion of the microphone hole is inclined relative to the vertical direction of the first groove wall. In the wearing state, the adapter housing is disposed adjacent to the user's upper ear root. In the length direction, the sound inlet end of the microphone hole is closer to the free end than the sound outlet end of the microphone hole. In the width direction, the sound inlet end of the microphone hole is farther away from the upper ear root than the sound outlet end of the microphone hole.

[0015] In some embodiments, the angle of inclination of the extension direction of at least a portion of the sound hole relative to the vertical direction of the first groove wall is between 0° and 20°.

[0016] In some embodiments, the ear hook includes a soft cover that wraps around the adapter housing, and the microphone hole extends into and through the soft cover.

[0017] The beneficial effects of this application are as follows: Unlike the prior art, this application provides a mounting groove on the adapter housing of the earphone. A microphone is located on a second groove wall opposite to the first groove wall in the mounting groove. The earphone also includes a microphone and a support plate. The microphone and support plate are installed between the first and second groove walls of the mounting groove. The support plate presses the microphone against the second groove wall within the mounting groove, thereby fixing the microphone to the adapter housing and allowing the microphone to directly align with the microphone hole on the first groove wall. This design utilizes only a simple structure and components to press and fix the microphone to the adapter housing, reducing the assembly difficulty of installing the microphone in the earphone and simplifying the overall earphone assembly. Furthermore, pressing the microphone against the first groove wall minimizes communication between the microphone hole and the internal space of the earphone, improving the airtightness between the microphone and the microphone hole, thus enhancing the microphone's sound pickup performance. [Attached Image Description]

[0018] Figure 1 is a schematic diagram of the front outline of the user's ear as described in this application;

[0019] Figure 2 is a side-view three-dimensional structural diagram of an embodiment of the earphone provided in this application;

[0020] Figure 3 is a schematic diagram of the earphone embodiment shown in Figure 2 in the wearing state;

[0021] Figure 4 is a side-view three-dimensional structural diagram of the sound-generating part in the earphone embodiment shown in Figure 2;

[0022] Figure 5 is a schematic diagram of the cross-sectional structure of the sound-generating part shown in Figure 4 along section line AA;

[0023] Figure 6 is a schematic diagram of the cross-sectional structure of the sound-generating part shown in Figure 4 along section line BB;

[0024] Figure 7 is an enlarged schematic diagram of a local area O of the sound-producing part shown in Figure 6;

[0025] Figure 8 is a schematic diagram of the exploded structure of the sound-generating part shown in Figure 4;

[0026] Figure 9 is an enlarged schematic diagram of a local area P of the sound-producing part shown in Figure 7;

[0027] Figure 10 is a side view structural diagram of the ear hook in the sound-producing part shown in Figure 4;

[0028] Figure 11 is a schematic diagram of the ear hook in the sound-producing part shown in Figure 4 from another side.

Detailed Implementation Methods

[0029] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0030] The reference to "embodiment" in this application means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments.

[0031] The following is an exemplary description of the headphones in the example embodiment.

[0032] Referring to Figure 1, the user's ear 100 may include physiological parts such as the external auditory canal 101, the concha 102, and the auricle 103. While the external auditory canal 101 has a certain depth and extends to the tympanic membrane of the ear 100, for ease of description, unless otherwise specified, the external auditory canal 101 specifically refers to its entrance (i.e., ear canal) away from the tympanic membrane. Furthermore, the concha 102 has a certain volume and depth, and is directly connected to the external auditory canal 101; that is, the aforementioned ear canal can be simply considered as being located at the bottom of the concha 102.

[0033] Headphone 1 is an audio converter capable of receiving electrical signals from a media player or receiver and converting them into sound waves that can be heard by the user. In some embodiments, headphone 1 can be an open-back headphone, such as an ear-hook headphone, a behind-the-ear headphone, or a clip-on headphone.

[0034] As shown in Figure 2 or Figure 3, the earphone 1 can be an ear-hook type earphone. In some embodiments, when worn, at least a portion of the earphone 1 can be inserted into the concha 102 of the user to improve wearing stability. In some embodiments, the sound-emitting part 20 of the earphone 1 can at least partially cover the auricle 103 of the user's ear, such as the antihelix, cymba concha, or triangular fossa (not shown in the figure), but does not block the external auditory canal 101 of the user's ear or visually obscure the external auditory canal 101 of the user's ear. In some embodiments, the sound-emitting part 20 of the earphone 1 can also fit against or rest against the facial area in front of the user's ear, with the side of the sound-emitting part 20 facing the user's ear or the user's external auditory canal 101.

[0035] Furthermore, individual differences may exist among different users, resulting in variations in the shape, size, and other dimensions of the earpiece 100. To facilitate description and reduce (or even eliminate) these individual differences, a simulator containing a head and its (left and right) earpieces 100 can be manufactured based on ANSI:S3.36, S3.25 and IEC:60318-7 standards. Examples include the GRAS 45BC KEMAR, HEAD Acoustics, B&K 4128 series, or B&K 5128 series, to represent the scenario of most users wearing the headphones 1. Taking the GRAS KEMAR as an example, the simulator for the earpiece 100 can be any one of the GRAS 45AC, GRAS 45BC, GRAS 45CC, or GRAS 43AG; taking HEAD Acoustics as an example, the simulator for the earpiece 100 can be any one of the HMS II.3, HMS II.3LN, or HMS II.3LN HEC. Therefore, in this application, descriptions such as "the user is wearing earphone 1," "earphone 1 is in a wearing state," and "in a wearing state" can refer to the earphone 1 being worn on the ear 100 of the aforementioned simulator. Of course, due to individual differences among users, the earphone 1 worn by different users may differ from the earphone 1 being worn on the ear 100 of the aforementioned simulator, but such differences should be tolerable.

[0036] It should be noted that in fields such as medicine and anatomy, three basic planes—the sagittal plane, the coronal plane, and the horizontal plane—and three basic axes—the sagittal axis, the coronal axis, and the vertical axis—can be defined for the human body or human simulator. The sagittal plane is a plane perpendicular to the ground along the anteroposterior direction of the body, dividing the human body or human simulator into left and right parts. The coronal plane is a plane perpendicular to the ground along the left and right direction of the body, dividing the human body or human simulator into anterior and posterior parts. The horizontal plane is a plane parallel to the ground along the vertical direction of the body, dividing the human body or human simulator into superior and inferior parts. Correspondingly, the sagittal axis is the axis along the anteroposterior direction of the body and perpendicular to the coronal plane; the coronal axis is the axis along the left and right direction of the body and perpendicular to the sagittal plane; and the vertical axis is the axis along the vertical direction of the body and perpendicular to the horizontal plane. Furthermore, the "front side of the ear" mentioned in this application is a concept relative to "back side of the ear." The former refers to the side of the ear that is away from the head, while the latter refers to the side of the ear that faces the head. Both refer to the ear 100 of the user or simulator. The ear 100 of the human body or human simulator viewed along the coronal axis can be shown in Figure 1.

[0037] As an example, referring to Figures 2 and 3, the earphone 1 may include an ear hook 10 and a sound-emitting part 20 connected to each other. In the wearing state, the ear hook 10 can be positioned between the user's auricle 103 and head, that is, at least a portion of the ear hook 10 of the earphone 1 can be located behind the ear 100, so that the earphone 1 is attached to the ear 100, and the sound-emitting part 20 can be located in front of the auricle 103. The sound-emitting part 20 can be a sound playback device, which can be used to convert electrical signals into sound signals (also referred to as "sound waves" or "sound signals") and propagate them to the wearer's ear 100.

[0038] In some embodiments, the ear hook 10 may contain a battery or a circuit board, or the ear hook 10 may contain both a battery and a circuit board. Of course, the ear hook 10 may also omit the battery and circuit board, and instead install the battery and circuit board into the sound-generating part 20.

[0039] In some embodiments, as shown in Figures 1 to 5, the sound-emitting part 20 may include a mechanism housing 210. In some embodiments, as shown in Figure 5, the earphone 1 may further include a speaker assembly 30 disposed within the mechanism housing 210. The speaker assembly 30 is a component that can convert electrical signals into corresponding sound signals to realize the sound playback function of the sound-emitting part 20. As an example, the speaker assembly 30 may include a bone conduction speaker and an air conduction speaker; in other embodiments, the speaker assembly 30 may also be configured as one of an air conduction speaker and a bone conduction speaker.

[0040] In some embodiments, as shown in Figures 2 to 5, the ear hook 10 may include an adapter housing 110 and a hook-shaped portion 120. The adapter housing 110 can be used to connect the mechanism housing 210 and the hook-shaped portion 120. The hook-shaped portion 120 is hook-shaped for hooking onto the user's ear 100 when the user wears the earphone 1.

[0041] As shown in Figures 5 to 7, the adapter housing 110 may have a mounting groove 111 inside. The mounting groove 111 may have a first groove wall 1111 and a second groove wall 1112 arranged opposite to each other, and a mounting opening 1113 located between the first groove wall 1111 and the second groove wall 1112. The adapter housing 110 may have a sound receiving hole 112, and the sound output end 1121 of the sound receiving hole 112 is located on the first groove wall 1111.

[0042] The headset 1 may also include a microphone 40 and a support plate 50, which are mounted between the first groove wall 1111 and the second groove wall 1112 via a mounting opening 1113. The support plate 50 is stacked on top of the microphone 40. The support plate 50 is located between the microphone 40 and the second groove wall 1112, and is used to hold the microphone 40 against the first groove wall 1111. The microphone 40 collects external sounds through the sound receiving hole 112. External sounds of the headset 1 may include, for example, the user's voice, horn sounds, car bell sounds, surrounding voices, or traffic signals.

[0043] Specifically, the support plate 50 and the microphone 40 are stacked along the arrangement interval of the first groove wall 1111 and the second groove wall 1112. The support plate 50 can press the microphone 40 against the first groove wall 1111, and the microphone 40 can be firmly fixed in the adapter housing 110 under the pressing action of the support plate 50 and the limiting action of the mounting groove 111. With this configuration, the microphone 40 can be pressed and fixed on the adapter housing 110 using only a simple structure and components, thereby reducing the assembly difficulty of installing the microphone 40 in the headset 1 and also reducing the assembly difficulty of the headset 1.

[0044] Furthermore, the microphone 40 can directly correspond to the sound receiving hole 112 on the first groove wall 1111. After the microphone 40 is pressed against the first groove wall 1111, it can avoid the sound receiving hole 112 from communicating with the internal space of the headphone 1 as much as possible. This can improve the airtightness between the microphone 40 and the sound receiving hole 112, thereby improving the sound receiving effect of the microphone 40.

[0045] In some embodiments, the support plate 50 may be made of metal or rigid plastic. This design allows the support plate 50 to have a certain resistance to deformation, preventing it from deforming or being damaged during installation and contact with the microphone 40, which would affect the holding effect on the microphone 40 and consequently the airtightness of the earphone 1.

[0046] In some embodiments, as shown in FIG5, the earphone 1 may include a flexible circuit board 60 and a main control circuit board 70. The main control circuit board 70 may be disposed in the housing 210, and the mounting opening 1113 may face the main control circuit board 70. A portion of the flexible circuit board 60 may extend into the mounting groove 111 through the mounting opening 1113 and electrically connect the microphone 40 and the main control circuit board 70.

[0047] The main control circuit board 70 refers to the core control component inside the earphone 11. The main control circuit board 7060 can be a PCB (Printed Circuit Board) or an FPC (Flexible Printed Circuit Board), etc. The main control circuit board 70 can be electrically connected to the microphone 40 and the speaker assembly 30, respectively.

[0048] The flexible printed circuit board 60 (FPC) is a highly reliable and extremely flexible printed circuit board characterized by high wiring density, light weight, thinness, and good bendability. It is typically made with polyimide or polyester film as the substrate and is also known as a flexible circuit board. Using the flexible circuit board 60 to connect the microphone 40 and the main control circuit board 70 is more adaptable to the complex internal space of the earphone 1. The flexible circuit board 60 is less prone to damage than ordinary wires, and its good bendability allows it to avoid other components within the chassis housing 210 and the adapter housing 110.

[0049] Specifically, one end of the flexible circuit board 60 is connected to the main control circuit board 70 inside the chassis housing 210, and the other end extends into the mounting slot 111 through the mounting opening 1113 to connect with the microphone 40. By setting the mounting opening 1113 of the mounting slot 111 to face the main control circuit board 70, it is easy for one end of the flexible circuit board 60 to connect to the main control circuit board 70 and for the other end of the flexible circuit board 60 to extend into the mounting slot 111 for connection, thereby reducing redundancy and folding of the flexible circuit board 60 and also reducing the possibility of short circuits in the flexible circuit board 60.

[0050] In some embodiments, the support plate 50, microphone 40, and a portion of the flexible circuit board 60 are interference-fitted with the mounting groove 111 along the spacing direction between the first groove wall 1111 and the second groove wall 1112, such that the microphone 40 is tightly pressed against the first groove wall 1111. In other words, the distance between the first groove wall 1111 and the second groove wall 1112 is less than or equal to the sum of the thicknesses of the support plate 50, microphone 40, and the portion of the flexible circuit board 60 extending into the mounting groove 111. It should be noted that the thickness mentioned here refers to the thickness of each component in the non-mounted state.

[0051] This configuration allows the components in the mounting slot 111 to fit together more tightly, and the support plate 50, microphone 40 and part of the flexible circuit board 60 can be more securely clamped between the first slot wall 1111 and the second slot wall 1112, thereby improving the overall airtightness of the headphone 1.

[0052] In some embodiments, as shown in Figures 7 and 9, a dustproof mesh assembly 1114 may be provided within the mounting slot 111. The dustproof mesh assembly 1114 may be located between the first slot wall 1111 and the microphone 40. The dustproof mesh assembly 1114 can be used to isolate impurities such as dust, particles, and water droplets in the air, making it difficult for these impurities to enter the adapter housing 110 and the core housing 210, thereby reducing the risk of corrosion or damage to internal components such as the speaker assembly 30 and the main control circuit board 70.

[0053] In some embodiments, the protective net assembly 1114 may include components such as steel mesh, yarn mesh, and insulating cotton sheets (not shown). Alternatively, in other embodiments, the protective net assembly 1114 may include components such as multiple layers of steel mesh or multiple layers of yarn mesh.

[0054] The protective mesh assembly 1114 also achieves an interference fit with the support plate 50, microphone 40, and a portion of the flexible circuit board 60 within the mounting groove 111. In other words, the distance between the first groove wall 1111 and the second groove wall 1112 is less than or equal to the sum of the thicknesses of the protective mesh assembly 1114, support plate 50, microphone 40, and the portion of the flexible circuit board 60 extending into the mounting groove 111. It should be noted that the thickness mentioned here refers to the thickness of each component in its non-installed state.

[0055] In some embodiments, a portion of the flexible circuit board 60 may be located between the microphone 40 and the protective mesh assembly 1114. The sound output end 1121 of the sound receiving hole 112 is connected to the sound acquisition area 41 of the microphone 40. The protective mesh assembly 1114, the portion of the flexible circuit board 60, and the microphone 40 are all pressed against the first groove wall 1111 by the support plate 50. This prevents external sound and airflow from leaking through the gaps between the first groove wall 1111 and the protective mesh assembly 1114, the portion of the flexible circuit board 60, and the microphone 40 during the process of entering the sound acquisition area 41 of the microphone 40 through the sound receiving hole 112. This minimizes the risk of airflow entering the adapter housing 110 and the core housing 210, thereby improving the overall airtightness of the earphone 1 and enhancing the sound reception effect of the microphone 40.

[0056] In some embodiments, as shown in Figures 9 to 11, the adapter housing 110 may include a spacer 113 for forming a mounting groove 111, the second groove wall 1112 may be the side surface of the spacer 113 facing the mounting groove 111, and the spacer 113 may be provided with a groove 1131.

[0057] Because the microphone 40 and support plate 50, etc., installed in the mounting slot 111, are interference-fitted with the mounting slot 111, both the first slot wall 1111 and the second slot wall 1112 will undergo slight deformation. If the rigidity of the second slot wall 1112 is too high, installation difficulties will occur; if the rigidity of the second slot wall 1112 is too low, the deformation of the second slot wall 1112 will be greater when adding components, and the pressing effect of the support plate 50 on the microphone 40 and other components will be weakened. Therefore, by providing a groove 1131 on the spacer plate 113, the spacer plate 113 where the second slot wall 1112 is located can more easily undergo slight deformation, thereby making it easier for the microphone 40 and support plate 50 and other components to enter the mounting slot 111, reducing the installation difficulty of the microphone 40, and also facilitating the installation and adjustment of dimensions during the assembly of the earphone 1, thus reducing the assembly difficulty of the earphone 1. At the same time, it can also ensure that the spacer plate 113 has a certain rigidity to ensure the pressing effect of the support plate 50 on the microphone 40 and other components.

[0058] In some embodiments, as shown in FIG11, the groove opening 1132 of the groove 1131 and the mounting opening 1113 may have the same orientation, and the length direction of the groove 1131 is set along the depth direction of the mounting groove 111, the depth direction of the mounting groove 111 being perpendicular to the spacing direction between the first groove wall 1111 and the second groove wall 1112. As an example, the depth direction of the mounting groove 111 may be the direction shown by arrow C in FIG11.

[0059] Specifically, since components such as the microphone 40 and the support plate 50 enter the mounting groove 111 through the mounting opening 1113 and are further inserted into the mounting groove 111 along its depth direction, an interference fit and installation with the mounting groove 111 are achieved. The groove opening 11 of the recess 1131 faces the same direction as the mounting opening 1113, indicating that the recess 1131 is connected to the mounting opening 1113. Setting the length direction of the recess 1131 to extend along the depth direction of the mounting groove 111 makes it easier for the spacer plate 113 to deform during the installation of the microphone 40 and the support plate 50, thus facilitating the entry of the microphone 40 and the support plate 50 into the mounting groove 111.

[0060] During the debugging and disassembly of the microphone 40, the direction in which the microphone 40 and the support plate 50 are removed from the mounting groove 111 is opposite to the depth direction of the mounting groove 111. Therefore, by setting the length direction of the groove 1131 along the depth direction of the mounting groove 111, the support plate 50 can be pushed out in the opposite direction of the depth direction of the mounting groove 111 during the debugging and disassembly of the microphone 40. This facilitates the removal of the microphone 40 and other components from the mounting groove 111, reducing the difficulty of disassembling the earphone 1.

[0061] In some embodiments, after the microphone 40 and other components are assembled in the mounting slot 111, adhesive can be applied to the mounting opening 1113 by dispensing or dripping. The adhesive can seal the mounting opening 1113 to further fix the microphone 40 in the mounting slot 111. Furthermore, the adhesive can further wrap around the side of the spacer 113 facing away from the support plate 60, so that the adhesive is less likely to fall out of the mounting opening 1113 after it has solidified.

[0062] In some embodiments, as shown in Figures 2 to 6, the sound-emitting part 20 may have a connecting end 220 for connecting to the ear hook 10 and a free end 230 disposed opposite to the connecting end 220. The sound-emitting part 20 has a length direction, a width direction, and a thickness direction that are orthogonal to each other. At least a portion of the free end 230 may extend into the concha cavity 102 or abut against the user's auricle 103.

[0063] The length direction can be the spacing direction between the connecting end 220 and the free end 230. The spacing direction between the connecting end 220 and the free end 230 refers to the direction of extension of the line connecting the connecting end 220 and the free end 230. In some embodiments, the connecting end 220 and the free end 230 can be irregular or regular arc shapes, and the direction of extension of the line connecting the connecting end 220 and the free end 230 can be defined by a straight line perpendicular to the parallel tangent plane of the two reference points furthest apart on the connecting end 220 and the free end 230. The length direction can also be defined as the direction in which the movement housing 210 approaches or moves away from the back of the head when worn, that is, the direction defined between the side of the sound-emitting part 20 that approaches the back of the head and the side that moves away from the back of the head when worn. As an example, the length direction can be the direction shown by arrow X in Figures 2 to 7. It should be noted that the coordinate system of the length, width and thickness of the sound-emitting part 20 defined in this instruction manual using the wearing state is based on the sound-emitting part 20 and is independent of the three basic axes of the human body, and will not change due to slight differences when worn on the ears of different users.

[0064] The width direction can be defined as the direction in which the movement housing 210 approaches or moves away from the top of the head when worn, that is, the direction defined between the side of the sound-emitting part 20 that approaches the top of the head and the side that moves away from the top of the head when worn. As an example, the width direction can be the direction shown by arrow Y in Figures 3 to 7.

[0065] The thickness direction can be the direction in which the sound-emitting part 20 faces or moves away from the auricle 103 when worn. As an example, the thickness direction can be the direction indicated by arrow Z in Figures 2 to 7. The thickness direction Z can be substantially parallel to the vibration direction of the speaker assembly 30 in the sound-emitting part 20, and substantially parallel means that the spatial angle between the two directions is less than 5°.

[0066] In some embodiments, as shown in FIG6, the depth direction of the mounting groove 111 can be inclined relative to the length direction X. The depth direction of the mounting groove 111 can be as indicated by arrow C in FIG6. In other words, the angle between the depth direction C of the mounting groove 111 and the length direction X is not equal to 0°. By setting the depth direction C of the mounting groove 111 in this way, the accommodating space of the adapter housing 110 can be fully utilized, improving space utilization, reducing the size occupied by the mounting groove 111 in the length direction X, thereby reducing the size of the earphone 1 in the length direction X, and at the same time, allowing the mounting opening 1113 to face the main control circuit board 70.

[0067] In some embodiments, at least a portion of the sound hole 112 may be inclined relative to the vertical direction of the first groove wall 1111.

[0068] As an example, as shown in FIG7, the extension direction of at least a portion of the sound hole 112 is as indicated by arrow D in FIG7, and the vertical direction of the first groove wall 1111 is as indicated by arrow E in FIG7.

[0069] Since the sound outlet 1121 of the sound receiving hole 112 is located on the first groove wall 1111 and is connected to the sound acquisition area 41 of the microphone 40, and the sound outlet 1121 of the sound receiving hole 112 penetrates the housing where the first groove wall 1111 is located, setting at least a portion of the hole segment of the sound receiving hole 112 to be inclined relative to the vertical direction E of the first groove wall 1111 can make the airflow be blocked and weakened by the inclined hole wall after entering the sound inlet 1122 of the sound receiving hole 112. This can reduce the situation where the airflow directly impacts the microphone 40 after entering the sound inlet 1122 of the sound receiving hole 112, thereby further reducing wind noise and improving the sound reception effect of the microphone 40.

[0070] In some embodiments, the angle of inclination of the extension direction of at least a portion of the sound-receiving hole 112 relative to the vertical direction of the first groove wall 1111 can be between 0° and 20°. As an example, the angle of inclination of the extension direction of at least a portion of the sound-receiving hole 112 relative to the vertical direction of the first groove wall 1111 can be a value such as 5°, 10°, 12°, 15° or 18°.

[0071] As an example, as shown in FIG7, the inclination angle of the extension direction D of at least a portion of the sound hole 112 relative to the vertical direction E of the first groove wall 1111 can be as shown by angle α in FIG7, where 5° < angle α < 20°.

[0072] If the extension direction D of at least a portion of the sound-receiving hole 112 has an inclination angle of 0° relative to the vertical direction E of the first groove wall 1111, it means that the extension direction D of the sound-receiving hole 112 is parallel to the vertical direction E of the first groove wall 1111. When the airflow enters the sound inlet 1122 of the sound-receiving hole 112, it can easily pass directly through the sound outlet 1121 and impact the microphone 40, causing the microphone 40 to generate significant wind noise. If the extension direction D of at least a portion of the sound-receiving hole 112 has an inclination angle greater than 20° relative to the vertical direction E of the first groove wall 1111, the sound-receiving hole 112 will occupy more space on the adapter housing 110, increasing the processing difficulty of the sound-receiving hole 112 and causing excessive loss of effective sound information.

[0073] Therefore, setting the extension direction D of at least a portion of the sound-receiving hole 112 to an inclination angle between 0° and 20° relative to the vertical direction E of the first groove wall 1111 not only allows the airflow to be blocked and weakened by the inclination wall after entering the sound inlet 1122 of the sound-receiving hole 112, reducing the impact force of the airflow on the microphone 40, thereby improving the wind noise resistance of the headphone 1 and effectively improving the sound pickup effect of the microphone 40, but also reduces the space occupied by the sound-receiving hole 112 on the adapter housing 110, and also facilitates the processing and formation of the sound-receiving hole 112 on the adapter housing 110.

[0074] In some embodiments, the extension direction of all segments of the microphone hole 112 can be set to an inclination angle between 0° and 20° relative to the vertical direction of the first groove wall 1111. This facilitates the formation of the microphone hole 112 on the adapter housing 110 and reduces the attenuation of effective sound information by the microphone hole 112, thereby ensuring the microphone 40's sound reception effect and wind noise resistance.

[0075] Of course, in other embodiments, the hole segment of the sound receiving hole 112 may be partially inclined and partially curved. The shapes of the hole segments in the sound receiving hole 112 will not be listed one by one in this embodiment.

[0076] In some embodiments, valid sound information may refer to target information, such as voice information during a call or warning information. In some embodiments, valid sound information may refer to target frequency band sound information, such as sound information in the frequency band of 500Hz to 1kHz, 1kHz to 2kHz, or 200Hz to 2kHz.

[0077] In some embodiments, when worn, the adapter housing 110 may be disposed adjacent to the user's upper ear root. In the length direction X, the sound inlet end 1122 of the sound inlet 112 may be closer to the free end 230 than the sound outlet end 1121 of the sound inlet 112.

[0078] Because, in the direction of the human body's vertical axis (i.e., the direction from the top of the head to the bottom of the feet), when the earphone 1 is worn, the free end 230 is closer to the user's mouth than the connecting end 220. Therefore, by setting the sound-receiving hole 112 in the length direction X such that the inlet end 1122 is closer to the free end 230 than the outlet end 1121, the inlet end 1122 can be closer to the user's mouth, thereby facilitating the microphone 40 to collect the user's voice through the sound-receiving hole 112 and enhancing the microphone 40's sound pickup effect.

[0079] In some embodiments, in the width direction Y, the sound inlet 1122 of the microphone hole 112 can be further away from the upper ear root than the sound outlet 1121 of the microphone hole 112. Furthermore, since the adapter housing 110 is disposed adjacent to the user's upper ear root, configuring the microphone hole 112 such that the sound inlet 1122 is further away from the upper ear root in the width direction Y compared to the sound outlet 1121 allows the sound inlet 1122 to be closer to the user's mouth. This facilitates the microphone 40 in collecting the user's voice through the microphone hole 112, thereby enhancing the microphone 40's sound pickup effect.

[0080] In some embodiments, as shown in FIG11, the ear hook 10 may include a soft cover 80, which may cover the adapter housing 110, and the sound hole 112 may extend into and through the soft cover 80.

[0081] Specifically, the mounting groove 111 is located on the side of the adapter housing 110 away from the soft covering 80. The sound inlet 1122 of the sound hole 112 can be located on the side of the soft covering 80 away from the adapter housing 110.

[0082] The soft covering 80 covers the adapter shell 110, allowing the adapter shell 110 to contact the user's ear 100 through the soft covering 80 when the earphone 1 is worn, thus allowing the human body to come into contact with a softer part and improving the user experience.

[0083] In some embodiments, the soft coating 80 may be made of a flexible material such as silicone or TPE (thermoplastic elastomer).

[0084] In summary, this application provides a mounting groove 111 on the adapter housing 110 of the earphone 1. A sound receiving hole 112 is provided on the second groove wall 1112 opposite to the first groove wall 1111 in the mounting groove 111. The earphone 1 also provides a microphone 40 and a support plate 50. The microphone 40 and the support plate 50 are installed between the first groove wall 1111 and the second groove wall 1112 of the mounting groove 111. The support plate 50 presses the microphone 40 against the second groove wall 1112 in the mounting groove 111, so that the microphone 40 can be installed and fixed on the adapter housing 110, and the microphone 40 can be directly aligned with the sound receiving hole 112 on the first groove wall 1111. With this configuration, the microphone 40 can be pressed and fixed onto the adapter housing 110 using only a simple structure and components. This reduces the assembly difficulty of installing the microphone 40 into the earphone 1 and also reduces the assembly difficulty of the earphone 1. Furthermore, after the microphone 40 is pressed against the first groove wall 1111, it can minimize the communication between the sound hole 112 and the internal space of the earphone 1, and also improve the airtightness between the microphone 40 and the sound hole 112, thereby improving the sound reception effect of the microphone 40.

[0085] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. An earphone, characterized in that, The headphones include ear hooks and a sound-producing part connected to each other. When worn, the ear hooks are positioned between the user's ear and head, and the sound-producing part is located in front of the ear. The sound-producing part includes a mechanism housing, and the ear hooks include an adapter housing and a hook-shaped part. The adapter housing connects the mechanism housing and the hook-shaped part. The adapter housing has a mounting groove inside, which has a first groove wall and a second groove wall arranged opposite to each other, and a mounting opening located between the first groove wall and the second groove wall. The adapter housing has a sound-receiving hole, and the sound-emitting end of the sound-receiving hole is located on the first groove wall. The earphone also includes a microphone and a support plate. The microphone and the support plate are installed between the first groove wall and the second groove wall through the mounting opening. The support plate is stacked with the microphone and is located between the microphone and the second groove wall to press the microphone against the first groove wall. The microphone collects external sound through the sound-receiving hole.

2. The earphone according to claim 1, characterized in that, The earphone includes a flexible circuit board and a main control circuit board. The main control circuit board is disposed in the housing of the mechanism. The mounting opening faces the main control circuit board. A portion of the flexible circuit board extends into the mounting groove through the mounting opening and electrically connects the microphone to the main control circuit board.

3. The earphone according to claim 2, characterized in that, The support plate, the microphone, and part of the flexible circuit board are interference-fitted with the mounting groove along the spacing direction between the first groove wall and the second groove wall.

4. The earphone according to claim 3, characterized in that, The mounting slot is equipped with a dustproof net assembly, which is located between the first slot wall and the microphone.

5. The earphone according to claim 4, characterized in that, A portion of the flexible circuit board is located between the microphone and the protective mesh assembly. The sound output end of the sound receiving hole is connected to the sound acquisition area of ​​the microphone. The protective mesh assembly, a portion of the flexible circuit board, and the microphone are all pressed against the first groove wall by the support plate.

6. The headphones according to any one of claims 1-4, characterized in that, The adapter housing includes a spacer plate for forming the mounting groove, the second groove wall being the side surface of the spacer plate facing the mounting groove, and the spacer plate being provided with a groove.

7. The earphone according to claim 6, characterized in that, The groove opening faces the same direction as the mounting opening, and the length direction of the groove is set along the depth direction of the mounting groove.

8. The headphones according to any one of claims 1-7, characterized in that, The support plate is made of metal or rigid plastic.

9. The headphones according to any one of claims 1-8, characterized in that, The sound-emitting part has a connecting end for connecting the ear hook and a free end disposed opposite to the connecting end. The sound-emitting part has a length direction, a width direction and a thickness direction that are orthogonal to each other. The depth direction of the mounting groove is inclined relative to the length direction. The length direction is the spacing direction between the connecting end and the free end. The thickness direction is the direction in which the sound-emitting part faces or moves away from the auricle when worn.

10. The earphone according to claim 9, characterized in that, At least a portion of the microphone hole is inclined relative to the vertical direction of the first groove wall. In the wearing state, the adapter shell is disposed adjacent to the user's upper ear root. In the length direction, the sound inlet end of the microphone hole is closer to the free end than the sound outlet end of the microphone hole. In the width direction, the sound inlet end of the microphone hole is farther away from the upper ear root than the sound outlet end of the microphone hole.

11. The earphone according to claim 10, characterized in that, The extension direction of at least a portion of the sound-receiving hole has an inclination angle of 0° to 20° relative to the vertical direction of the first groove wall.

12. The headphones according to any one of claims 1-11, characterized in that, The ear hook includes a soft covering that wraps around the adapter housing, and the microphone hole extends into and through the soft covering.

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