RU2805460C2 - Earphone - Google Patents

Abstract

FIELD: earphones.

SUBSTANCE: earphone includes a hook-shaped component, a connecting component and a fastening component, and when the earphone is in a worn state, the hook-shaped component is configured to be hung between the back of the user's ear and the user's head, the fastening component is configured to contact the outside of the ear wherein a central portion configured to generate sound is mounted on the attachment component, and the attachment component does not obstruct the external auditory canal, and the connecting component is configured to connect the hook-shaped component and the attachment component and extend from the head in a direction away from the head to interact with the component in the shape of a hook to provide the attachment component with a pressing force on the outer side of the ear.

EFFECT: improved stability of wearing the earpiece and preventing its detachment, as well as preventing the attachment component from closing the user's external auditory canal.

10 cl, 59 dwg

Description

Field of technology to which the invention relates

The present application relates to the technical field of loudspeaker devices and, in particular, to earphones.

State of the art

Headphones are widely used in people's daily lives and can be used in combination with electronic devices such as mobile phones, computers, etc. to provide users with listening pleasure. According to the operating principle of headphones, headphones can generally be classified into air conduction headphones and bone conduction headphones. According to the way in which users wear headphones, headphones can generally be classified into headsets, ear-mounted headphones, and in-ear headphones. According to the interactive communication method between headphones and electronic devices, headphones can generally be classified into wired headphones and wireless headphones.

Disclosure of the invention

The present disclosure is an earphone. The earpiece may include a hook-shaped component, a connecting component, and a fastening component. When worn, the hook-shaped component may be configured to be hung between the back of the user's ear and the user's head. The attachment component may be configured to contact the outside of the ear. The connecting component may be configured to connect the hook-shaped component and the fastening component and extend from the head behind the head to act in conjunction with the hook-shaped component to provide the fastening component with a pressing force on the outer side of the ear.

In some embodiments, in a direction from the first connection point between the hook-shaped component and the connecting component to the free end of the hook-shaped component, the hook-shaped component may be curved toward the back side of the ear to form a first contact point with the back side of the ear, and the attachment component may form a second contact point with the outside of the ear. The distance between the first contact point and the second contact point along the running direction of the connecting component in the natural state may be smaller than in the wearing state to provide the fastening component with a pressing force on the outer side of the ear.

In some embodiments, the hook-shaped component may further form a third contact point with the back of the ear. The third contact point may be located between the first connection point and the first contact point and in the vicinity of the first connection point. The distance between the projections of the first contact point and the third contact point on a reference plane perpendicular to the passing direction of the connecting component in the natural state may be less than the distance in the wearing state.

In some embodiments, in the direction from the first connection point between the hook-shaped component and the connecting component to the free end of the hook-shaped component, the hook-shaped component may be bent in the head direction to form a first contact point and a second contact point with the head. The first contact point may be located between the second contact point and the first connection point so that the hook-shaped component can form a lever structure with the first contact point as a support point. The force directed away from the head and provided by the head at the second contact point can be converted into a force directed towards the head at the first connection point by means of a lever structure to provide the attachment component with a force to press against the outer side of the ear through the connection component.

In some embodiments, the attachment component may extend into and be retained within the pinna.

In some embodiments, a resilient metal wire may be located within the hook-shaped component. The elastic metal wire may have a longitudinal axis direction and a transverse axis direction perpendicular to each other at a cross section of the elastic metal wire, and the size of the elastic metal wire in the longitudinal axis direction may be larger than the size of the elastic metal wire in the transverse axis direction, so that the hook-shaped component and the fastening component could act together to form an elastic ear clip.

In some embodiments, the ratio of the size of the elastic metal wire in the longitudinal axis direction to the size of the elastic metal wire in the transverse axis direction can be in the range of 4:1 to 6:1.

In some embodiments, the elastic metal wire may be shaped like an arc in the transverse axis direction, and the ratio of the height of the arc to the size of the elastic metal wire in the longitudinal axis direction may be in the range of 0.1-0.4.

In some embodiments, the passing component may be located on the attachment component and, when worn, extends into any of the auricle cavity, auricle, triangular socket, and ear socket. The passing component may be located on the hook-shaped component and, when worn, engages the helix and/or antihelix of the ear.

In some embodiments, in the wearing state, the side of the attachment component in contact with the user's skin may be defined as the inner surface, the side opposite the inner surface may be defined as the outer surface, the side of the attachment component facing the ear opening may be defined as the bottom the surface, the side opposite the bottom surface can be defined as the top surface, and the side of the attachment component facing the back side of the ear can be defined as the back surface. The passing component may be located on any of the inner surface, the lower surface, the upper surface and the rear surface.

In some embodiments, the passing component may be removably coupled to the fastening component.

In some embodiments, the passing component may be pulled over the fastening component through an elastic collar.

In some embodiments, when worn, the connecting component may be coupled to the bottom edge of the fastening component.

In some embodiments, the mounting component may be configured with a center portion and have a multi-section design to adjust the relative position of the center portion to the overall structure of the earphone.

In some embodiments, the fastening component may comprise a first fastening section, a second fastening section, and a third fastening section connected in close proximity in series. An end of the first fastening section remote from the second fastening section may be attached to the connecting component. The second fastening section can be folded back relative to the first fastening section and maintaining a distance between them so that the first fastening section and the second fastening section have a U-shaped structure, and the central part can be located on the third fastening section.

In some embodiments, the fastening component may comprise a first fastening section, a second fastening section, and a third fastening section connected in series with each other. An end of the first fastening section remote from the second fastening section may be attached to the connecting component. The second fastening section may be curved relative to the first fastening section. The third fastening section and the first fastening section may be located next to each other at a distance from each other, and the central part may be located on the third fastening section.

In some embodiments, the fastening component may have a thickness direction, a length direction, and a height direction orthogonal to each other. The thickness direction may be configured as a direction in which the attachment component is near or far from the ear in a wearing state, and the height direction may be configured as a direction in which the attachment component is near or away from the crown of the user's head in a wearing state. In a natural state and viewed from a side of the earphone facing the crown of the user's head in a wearing state, the fastening component may be at least spaced from a section of the hook-shaped component adjacent to the connecting component in the thickness direction. The connecting component may be arranged in an arc shape and connected between the fastening component and the hook shaped component.

In some embodiments, in the thickness direction, the minimum distance between a section of the hook-shaped component proximate the connecting component and the fastening component may be greater than 0 and less than or equal to 5 mm.

In some embodiments, the edges of the hook-shaped component section proximate the connecting component, the connecting component, and the ear-facing attachment component may be arranged in a circular arc shape. In the reference direction that passes through the annular inflection point of the circular arc and parallel to the length direction, the minimum width of the circular arc along the thickness direction at a position of 3 mm away from the annular inflection point can be in the range of 1 mm to 5 mm.

In some embodiments, the ear-facing side of the attachment component may be configured with a resonator hole, and the distance between the center of the resonator hole and a hook-shaped component section located adjacent the connecting component in the thickness direction may be in the range of 3 mm to 6 mm .

In some embodiments, the ear-facing side of the attachment component may comprise a first region and a second region. The first region may be configured with a resonator hole. The second region may be located further from the connecting component than the first region and protrude more toward the ear than the first region to allow the sound hole to be positioned some distance away from the ear when worn.

In some embodiments, the distance between the second region and the section of the hook-shaped component proximate to the connecting component in the thickness direction may be in the range of 1 mm to 5 mm.

In some embodiments, an orthogonal projection of a section of a hook-shaped component proximate the connecting component in the thickness direction may partially overlap the second region.

In some embodiments, the maximum protrusion height of the second region relative to the first region in the thickness direction may be greater than or equal to 1 mm.

In some embodiments, the attachment component may contact the antihelix of the ear.

Brief description of drawings

To clearly describe the technical solutions in the embodiments of the present disclosure, the drawings mentioned in the description of the embodiments are briefly presented below. It will be appreciated that the drawings in the following descriptions may be some examples or embodiments of the present disclosure. Other drawings can be derived from these drawings without creative effort by those skilled in the art.

Fig. 1 is a front view of the outline structure of a user's ear corresponding to some embodiments of the present disclosure;

Fig. 2 is a front view of an exemplary earphone design consistent with some embodiments of the present disclosure.

Fig. 3 is a left view of the earphone structure shown in FIG. 2;

Fig. 4 is a front view of the earphone shown in FIG. 2, in wearing condition;

Fig. 5 is a rear view of the earphone shown in FIG. 2, in wearing condition;

Fig. 6 – mechanical model of the earphone shown in Fig. 2, in wearing condition;

Fig. 7 is a front view of an earphone structure in accordance with some embodiments of the present disclosure;

Fig. 8 is a left view of the earphone shown in FIG. 7;

Fig. 9 is a front view of the earphone shown in FIG. 7, in wearing condition;

Fig. 10 is a rear view of the earphone shown in FIG. 7, in wearing condition;

Fig. 11 – mechanical model of the earphone shown in Fig. 7, in wearing condition;

Fig. 12 is a top view of an earphone structure in accordance with some embodiments of the present disclosure;

Fig. 13 is a front view of an earphone structure in accordance with some embodiments of the present disclosure;

Fig. 14 is a design of an earphone corresponding to some embodiments of the present disclosure;

Fig. 15 – mechanical model of the earphone shown in FIG. 14, in wearing condition;

Fig. 16 illustrates surface structures of the skin contact area of the battery part corresponding to some embodiments of the present disclosure;

Fig. 17 - various designs of the passing component corresponding to FIG. 12;

Fig. 18 is a design of an earphone corresponding to some embodiments of the present disclosure;

Fig. 19 is a perspective view of the structure of the hook-shaped component shown in FIG. 8;

Fig. 20 – design of elastic metal wire shown in Fig. 19, in a cross section on a reference plane perpendicular to the direction of passage of the hook-shaped component;

Fig. 21 is a front view of an earphone structure in accordance with some embodiments of the present disclosure;

Fig. 22 is a rotating axis assembly structure according to an embodiment of the present disclosure;

Fig. 23 is a design of the rotating axis assembly shown in FIG. 22, before and after assembly;

Fig. 24 is a design of the rotating axis assembly shown in FIG. 22, corresponding to another embodiment of the present disclosure;

Fig. 25 - design of the rotating axis assembly shown in FIG. 24 is an exploded view corresponding to an embodiment of the present disclosure;

Fig. 26 is a cross-sectional view of the rotating axle assembly shown in FIG. 25;

Fig. 27 is a cross-sectional view of the rotating axle assembly shown in FIG. 24, corresponding to another embodiment of the present disclosure;

Fig. 28 is a cross-sectional view of the rotating axle assembly shown in FIG. 27;

Fig. 29 is a cross-sectional view of an earphone in the XY plane corresponding to some embodiments of the present disclosure;

Fig. 30 is a design of an earphone on the side facing away from the ear, in accordance with some embodiments of the present disclosure;

Fig. 31 is an ear-facing earpiece design consistent with some embodiments of the present disclosure;

Fig. 32 is a view of the earphone structure viewed from the top of the user's head, consistent with some embodiments of the present disclosure;

Fig. 33 is an exploded view of an earphone structure corresponding to some embodiments of the present disclosure;

Fig. 34 is an exploded view of an earphone structure corresponding to some embodiments of the present disclosure;

Fig. 35 is an exploded view of an earphone structure corresponding to some embodiments of the present disclosure;

Fig. 36 is a cross-sectional view of an earphone corresponding to some embodiments of the present disclosure;

Fig. 37 is a design of an earphone on the side facing away from the ear, in accordance with some embodiments of the present disclosure;

Fig. 38 is a view of the headphone design at the top of the user's head, in accordance with some embodiments of the present disclosure;

Fig. 39 is an exploded view of an earphone in accordance with some embodiments of the present disclosure;

Fig. 40 is a central portion structure facing the main panel, corresponding to some embodiments of the present disclosure;

Fig. 41 is an exploded view of an earphone structure corresponding to some embodiments of the present disclosure;

Fig. 42 is an earpiece design on the side facing away from the ear, corresponding to some embodiments of the present disclosure;

Fig. 43 is a headphone design at the top of the user's head, corresponding to some embodiments of the present disclosure;

Fig. 44 is an exploded view of an earphone structure corresponding to some embodiments of the present disclosure;

Fig. 45 is a center-facing partition structure consistent with some embodiments of the present disclosure;

Fig. 46 is a cross-sectional view of an earphone structure corresponding to some embodiments of the present disclosure;

Fig. 47 is a cross-sectional view of an earphone structure corresponding to some embodiments of the present disclosure;

Fig. 48 is the sound field distribution of an acoustic dipole corresponding to some embodiments of the present disclosure;

Fig. 49 is the sound field distribution of an acoustic dipole with a baffle corresponding to some embodiments of the present disclosure;

Fig. 50 is the far-field sound pressure for an acoustic dipole with and without a baffle, corresponding to some embodiments of the present disclosure;

Fig. 51 is a theoretical model of an acoustic dipole with a baffle corresponding to some embodiments of the present disclosure;

Fig. 52 is the relationship between parameter α and angle θ corresponding to some embodiments of the present disclosure;

Fig. 53 is the relative relationship between the acoustic dipole and the ear, corresponding to some embodiments of the present disclosure;

Fig. 54 is an ear-facing earphone design consistent with some embodiments of the present disclosure;

Fig. 55 is an earphone design corresponding to some embodiments of the present disclosure;

Fig. 56 is the frequency response of an earphone corresponding to some embodiments of the present disclosure;

Fig. 57 illustrates a rear cavity design of an earphone corresponding to some embodiments of the present disclosure;

Fig. 58 is the frequency response of an earphone corresponding to some embodiments of the present disclosure;

Fig. 59 illustrates headphone structures in a worn state in accordance with some embodiments of the present disclosure.

Carrying out the invention

The present disclosure may be further described in detail with reference to the following drawings and embodiments. It should be noted that the following examples are used to illustrate the present disclosure only and do not limit the scope of the present disclosure. The following embodiments are only part of the embodiments of the present disclosure, but not all embodiments. All other embodiments obtained by those skilled in the art without any creative effort may be within the scope of the present disclosure.

The term “embodiment” referred to in the present disclosure may indicate that a certain function, structure, or feature described in combination with the embodiment may be included in at least one embodiment of the present disclosure. Those skilled in the art may clearly and implicitly understand that the embodiments described in the present disclosure may be combined with other embodiments.

In fig. 1 is a front view of a user's ear contour structure corresponding to some embodiments of the present disclosure.

As shown in FIG. 1, in addition to the external auditory canal 101 and near the ear cavity 102 of the user's ear 100, parts of the ear 100 such as the pinna 103, triangular socket 104, etc. can also be used to meet the requirements for wearing headphones because they have a certain depth and volume in three-dimensional space. In other words, by rationally designing the structure of the earphone, wearing the earphone can also be carried out by the user's ear 100 excluding the outer ear canal 101, and the user's outer ear canal 101 can be "free", thereby improving the user's physical health and reducing the likelihood of road accidents. -transport accidents. Accordingly, the present disclosure provides an earphone that primarily uses the upper portion of the user's ear 100 (including the area in which the pinna 103, triangular socket 104, antihelix 105, scapha 106, helix 107, etc.) are located to implement wearing earphone In some embodiments, the user's earlobe 108 and other parts may also be used to enhance wearing comfort and reliability of the earphone. In addition, for ease of description, certain relatively special physiological positions on ear 100 may be further defined. Special physiological positions may include the upper root of the LA ear connecting the anterior edge of the helix 107 and the head, Darwin's node LB on the helix 107, the LC tooth of the helix of the end of the antihelix 105, closest to the earlobe 108 and facing the ear cavity 102, the intertragic tooth LD of the end of the ear cavity 102 near the earlobe 108, etc. Due to individual differences among users, physiological positions such as Darwin's nodes may not be obvious or even non-existent on some users' ears, but this does not indicate that other users' ears do not have such physiological positions.

It should be noted that although the external auditory canal has a certain depth for passage to the tympanic membrane, for ease of description and in conjunction with FIG. 1, unless otherwise defined in the present disclosure, the external auditory meatus may specifically refer to the opening away from the tympanic membrane, that is, the ear opening. Additionally, the term “front of the ear” referred to in the present disclosure may be a concept referring to the “back of the ear.” Ear anterior may refer to the side of the ear facing away from the head, as shown in FIG. 1, and ear back may refer to the side of the ear facing the head. Both the outer side and the back side of the ear are referred to in relation to the user's ear.

Referring to FIG. 2-5, in fig. 2 is a schematic front view of an exemplary earphone design consistent with some embodiments of the present disclosure. In fig. 3 is a schematic left view of the earphone structure shown in FIG. 2. In FIG. 4 is a schematic front view of the earphone shown in FIG. 2, in wearing condition. In fig. 5 is a schematic rear view of the earphone shown in FIG. 2, in wearing condition. It should be noted that the three directions X, Y and Z of the earphone as shown in FIG. 2 serve mainly to show the three planes XY, XZ and YZ, so as to simplify the corresponding display in the following description. Therefore, all directional features (such as up, down, right, forward, backward, ...) in the present disclosure are mainly used to explain the relative positional relationships between components, movement states of components, and the like. in a specific position (as shown in Fig. 2). If the specific location changes, the directional features may change accordingly.

As shown in FIG. 2 and fig. 3, the earpiece 10 may include a hook-shaped component 11, a connection component 12, and a fastening component 13. The connecting component 12 may connect the hook-shaped component 11 and the fastening component 13 so that the earphone 10 can flex in three-dimensional space when the earphone 10 is not in a wearing state (ie, in a natural state). In other words, in three-dimensional space, the hook-shaped component, the connecting component 12 and the fastening component 13 may be coplanar. In such cases, as shown in FIG. 4 and fig. 5, when the earphone 10 is in a wearing state, the hook-shaped component 11 may be mainly configured to be hung between the back of the ear and the user's head, and the fastening component 13 may be mainly configured to contact the outer side ear, thereby allowing the fastening component 13 and the hook-shaped component 11 to cooperate to be secured to the ear. For example, the connecting component 12 may extend from the head to the outside of the head to interact with the hook-shaped component 11 to provide the attachment component 13 with a pressing force against the outside of the ear. The fastening component 13 can specifically press the area in which the pinna, triangular socket, antihelix and other parts are subject to the pressing force, so that the earphone 10 cannot cover the external auditory canal of the ear when the earphone 10 is in a wearing state. As another example, when the earphone 10 is in a wearing state, the projection of the attachment component 13 on the user's ear may fall mainly within the helix of the ear. Additionally, the attachment component 13 may be located on the ear canal side of the ear proximate to the crown of the user and contact the helix and/or antihelix. In this way, it is possible to prevent the attachment component 13 from covering the external auditory canal, thereby clearing the passage to the user's two ears. The contact area between the attachment component 13 and the ear can also be increased, thereby improving the wearing comfort of the earphone 10.

It should be noted that based on ANSI: S3.36, S3.25 and IEC: 60318-7 standards, a modeling simulator (eg GRAS 45BC KEMAR) for the head and (left and right) ears can be created. Therefore, the description of “the user wears the earphone” or “the earphone is in a wearing state” may refer to a state in which the earphone is worn on the ear in the above-mentioned simulator. Accordingly, the “wearing state” referred to in the present disclosure may refer to the normal wearing state of the earphone after it is put on the ear in the above-mentioned simulator. For ease of description, the normal wearing state can be further illustrated from the point of view of the outer side and the back side of the ear, such as the normal wearing state shown in FIG. 4 and fig. 5 and another example of a normal wearing state shown in FIG. 9 and fig. 10. Of course, due to the individual differences of users, the actual wearing state of the earphone 10 may differ from the normal wearing state mentioned above.

For adult males, the ears may be relatively thick (commonly known as "thick ears"). By rationally designing (exemplary illustrations may be described below) design parameters such as shape, size, etc. connection component 12 and the connection relationship with the hook-shaped component 11 and the fastening component 13, it can be ensured that the earphone 10 fits to the ear as best as possible to improve the wearing stability of the earphone 10, and the earphone 10 can be prevented from detaching from the helix near the upper root of the ear, then There is, the upper root of the ear can be naturally bypassed to improve wearing comfort of the earphone 10. Additionally, for users such as children, minors or adult women, the thickness of the ears can often be relatively thin (commonly known as "thin ears"). Particularly, compared with the thickness of adult male ears, in order to improve the fit of the earphone 10 to the user's ears when the earphone 10 is in a wearing state, the size of the connecting component 12 may be small. For example, the connecting component 12 may be an arc transition between the fastening component 13 and the hook-shaped component 11.

Additionally, the earpiece 10 may also include a center portion 14, a motherboard 15, and a battery 16. The center portion 14 may be used primarily to convert an electrical signal into a corresponding mechanical vibration (i.e., "sound shaping") and may be electrically coupled to the system board 15 and the battery 16 with corresponding conductors. The motherboard 15 may be used primarily to generate sound in the central portion 14, and the battery 16 may be used primarily to provide power for generating sound by the central portion 14. The earphone 10 described in the present disclosure may also include an audio transmitter such as such as a microphone, or sensor device, and may also include a communications device, such as a Bluetooth device or an NFC (Near Field Communication) device, which may be electrically coupled to the system board 15 and battery 16 via appropriate conductors to implement the respective functions.

For example, the central portion 14 may be attached to the fastening component 13. When the earphone 10 is in a wearing state, the central portion 14 can be pressed tightly against the user's ears under a pressing force. Additionally, when the earphone 10 is in a wearing state, as shown in FIG. 4, since the fastening component 13 is located primarily on the outer side of the user's ear, in addition to fastening the central part 14, the fastening component 13 can also be configured with multiple function buttons (not shown in FIG. 2), which facilitate interaction between the user and earphone 10. The system board 15 may also be located in the mounting component 13 to reduce wiring between the central portion 14 and the system board 15 and wiring between function buttons and the like. and the system board 15. It should be noted that since the mounting component 13 may be formed together with the central part 14, the system board 15, function buttons, etc., and positioned in front of the user's ear when the earphone 10 is in a wearing state, the battery 16 may be located in the hook-shaped component 11 and be located primarily between the back of the ear and the user's head when the earphone 10 is in a wearing state (as shown in FIG. 5). In this way, the capacity of the battery 16 can be increased to improve the wear resistance of the earphone 10, and the weight of the earphone 10 can also be balanced to improve the stability and wearing comfort of the earphone 10.

Additionally, the inventor(s) of the present disclosure, through long-term study, discovered that the weight ratio for the ratio of the total weight of the attachment component 13 to the total weight of the hook-shaped portion of the component 11 corresponding to the battery 16 (hereinafter referred to as the battery portion) can be in within 4:1, preferably within 3:1 and more preferably within 2.5:1. As shown in FIG. 2 and 3, in some embodiments, the total weight of the fastening component 13 may be the weight of the fastening component 13 and the weight of structural components such as the center portion 14, the system board 15, etc., thereof. The total weight of the battery portion may be the weight of the battery portion and the weight of structural components, such as battery 16, contained therein. It will be readily understood by those skilled in the art that the structural components in the fastening component 13 and the structural components in the battery portion may be changed according to the needs of the design. Adjustments to structural components in various parts may be included in the technical solution of the present disclosure and the weight ratio may not be affected, which is not repeated here. In this case, the weight of the earphone 10 can be more evenly distributed on the two ends of the earphone 10, and the user's ears can also serve as a fulcrum for supporting the earphone 10 when the earphone 10 is in a wearing state, so that the earphone 10 cannot at least slip off, when the earphone 10 is in a wearing state. Of course, the user's ears may bear most of the weight of the earphone 10, which may easily cause discomfort when worn for a long time. Therefore, the hook-shaped component 11, the connecting component 12, the fastening component 13 and other structures can be made of soft materials (such as polycarbonate, polyamide, styrene-butadiene-acrylonitrile copolymer, silica gel, etc.) to improve the wearing comfort of the earphone 10. Additionally, to improve the structural strength of the earphone 10, resilient metal conductors such as spring steel, titanium alloy, titanium-nickel alloy, chromium-molybdenum steel, aluminum alloy, copper alloy, etc. may also be arranged in the structure of the hook-shaped component 11 , connecting component 12, fastening component 13, or other structures.

It should be noted that in order to take into account the comfort and stability of the earphone 10 from a wearing point of view, the following improvements can be made:

1) The connection part 12 and the battery part can be made of a relatively hard material, and the middle part between the connection part 12 and the battery part can be made of the relatively soft materials mentioned above. In some embodiments, the middle portion may also employ a "soft-wrapped-hard" design. For example, when the user wears the earphone 10, the area of the hook-shaped component 11 that is in contact with the user may be made of the relatively soft materials mentioned above, and the rest of the area may be made of the relatively hard materials mentioned above. Various materials can be formed using technologies such as two-color injection molding technology, spray painting technology, etc. The relatively hard materials mentioned above may include, but are not limited to, polycarbonate (PC), polyamides (PA), acrylonitrile-butadiene-styrene copolymer (ABS), polystyrene, PS), High Impact Polystyrene (HIPS), Polypropylene (PP), Polyethylene Terephthalate (PET), Polyvinyl Chloride (PVC), Polyurethanes (PU), Polyethylene (PE) ), phenol-formaldehyde (PF), polyester sulfones (PES), polyvinylidene chloride (PVDC), polymethyl methacrylate (PMMA), polyether-ether-ketone (Poly-ether-ether-ketone) , (PEEK), etc. or a mixture of at least two of them or a mixture formed with reinforcing agents such as fiberglass, carbon fiber, etc. Additionally, the spray painting may specifically be a hand-applied rubber paint, a hand-applied resilient paint application, plastic elastic paint, etc.

2) Since the earphone 10 is worn by the user, a portion of the earphone 10 may be in contact with the skin of the user (hereinafter referred to as the skin contact area). In addition, the material of the skin contact area may generally affect the user's comfort when wearing the earphone 10 for a long time. Thus, the skin contact area may be made of the relatively soft materials mentioned above, and the other areas may be made of the relatively hard materials mentioned above. Various materials can be molded by technologies such as two-color injection molding, spray painting technology, etc.

In some embodiments, Shore hardness for relatively soft materials may be in the range of 45-85A, 30-60D. Both relatively soft materials and relatively hard materials can coat elastic metal wires.

Additionally, different users may have significant differences in age, gender and genetically determined characteristics. As a result, the ears and heads of different users may have different sizes and shapes. In such cases, the hook-shaped component 11 can be rotated relative to the connecting component 12, or the fastening component 13 can be rotated relative to the connecting component 12, or a portion of the connecting component 12 can be rotated relative to another part of the connecting component 12, so that the relative positional relationships of the hook-shaped component 11, connecting The mounting component 12 and the mounting component 13 could be adjusted in three-dimensional space, making it possible to adapt the earphone 10 to different users, that is, to increase the applicability of the earphone 10 to users from a wearable point of view. For example, the connection component 12 may be made of deformable materials such as mild steel wire. The user can bend the connecting part 12 to rotate one part relative to another part to adjust the relative positions of the hook-shaped component, the connecting part 12 and the fastening part 13 in three-dimensional space, thereby satisfying wearing needs. As another example, the connecting component 12 may be configured with a rotating axis mechanism 121, through which the user can also adjust the relative positions of the hook-shaped component 11, the connecting component 12 and the fastening component 13 in three-dimensional space to meet wearing needs. The detailed construction of the rotating axis mechanism 121 is within the understanding of those skilled in the art and therefore will not be described in detail here. Additionally, if the hook-shaped component 11 and the connecting component 12 are movably connected by the rotating axis mechanism 121, the hook-shaped component 11 can be rotated relative to the connecting component 12. If the fastening component 13 and the connecting component 12 are movably connected by the rotating axis mechanism 121, the fastening component 13 can rotate relative to the coupling component 12. If a portion of the coupling component 12 is movably coupled to another portion of the coupling component 12 by the rotating axis mechanism 121, the portion of the coupling component 12 can be rotated relative to the other portion of the coupling component 12.

In fig. 6 is a schematic representation of the mechanical model of the earphone shown in FIG. 2, in wearing condition. It should be noted that the YZ plane in FIG. 6 can be considered as the plane in which the user's head is located. Section ABC in FIG. 6 can be considered as a hook-shaped component. The CD section in FIG. 6 can be considered as a connecting component. Section DEF in FIG. 6 can be considered as a fastening component. Additionally, point C in FIG. 6 may correspond to the region in which the upper proximal end of the ear shown in FIG. 1 (for example, the area indicated by shaded box C in FIG. 1).

As shown in FIG. 4-6, when the earphone 10 is in a wearing state, the ABC section can be mainly located on the back side of the user's ear, the DEF section can be mainly located on the outside of the user's ear, and the CD section can be adapted mainly , to the thickness of the user's ear. In such cases, the BC section, the CD section, and the DEF section may form a “clip-like” structure so that the earphone 10 can be fixed to the user's ear, thereby forming a basic wearing state. The following description may be an approximate description of the strength and stability of the 10 in terms of wearing:

As shown in FIG. 6, in the direction from the first connecting point C between the hook-shaped component 11 and the connecting component 12 and the free end of the hook-shaped component 11 (for example, the end at which point A in FIG. 6 is located), the hook-shaped component 11 may be curved towards the user's head and form a first contact point B and a second contact point A of head contact. The first contact point B may be located between the second contact point A and the first connection point C. It should be noted that the first contact point B and the second contact point A may both be points defined in the mechanical model. When actually worn, due to the differences in the physiological characteristics of the heads and ears of different users, there may be a certain influence on the actual wearing of the earphone 10. The position of the earphone 10 that is in contact with the head when the earphone 10 is actually worn may correspond to the free end of the component 11 in a hook shape or any point between the free end and the first contact point B. In some embodiments, section AB may also be partially or completely adjacent to the user's head. The mechanical model and the actual principle of wearing stability may be the same as the technical solutions mentioned above. Those skilled in the art can easily examine, adjust, and combine the contents based on the technical solutions of the present disclosure without creative effort and this need not be repeated here. Thus, the hook-shaped component 11 can form a hook structure with the first contact point B as a support point. The free end of the hook-shaped component 11 can be pressed against the head of the user, the user's head at the second contact point A can provide a force directed behind the head, which can be converted into a force directed towards the head at the first connecting point C through the hook structure, and to the component The attachment 13 may apply a force to the outer side of the ear through the connecting component 12.

It should be noted that in order to allow the free end of the hook-shaped component 11 to press against the user's head when the earphone 10 is in a wearing state and to allow the user's head to provide a force behind the head at the second contact point A, at least the following conditions be satisfied: the angle formed between the free end of the hook-shaped component 11 and the YZ plane when the earphone 10 is not in a wearing state can be greater than the angle formed between the free end of the hook-shaped component 11 and the YZ plane when The earphone 10 is in a wearing state. The larger the angle formed between the free end of the hook-shaped component 11 and the YZ plane when the earphone 10 is not in a wearing state, the more tightly the free end of the hook-shaped component 11 can press on the user's head when the earphone 10 is in a wearing state, and the greater the force directed behind the head at the second contact point A is provided by the user's head, respectively.

It should be noted that when the free end of the hook-shaped component 11 presses against the user's head, in addition to causing the user's head to provide a force behind the head at the second contact point A, it may also force at least the component section BC 11 in the form of a hook to generate another pressing force on the back side of the ear, which can interact with the pressing force generated by the fastening component 13 on the outer side of the ear to form a "front and rear pinching" effect on the user's ear, thus improving the stability of the earphone 10 from a wearing point of view.

Additionally, the battery 16 may be suitably positioned in the AB section of the hook-shaped component 11 to balance the weight of the mounting component 13 and the structures contained therein, such as the center portion 14 and the motherboard 15, thereby improving the stability of the earphone 10. wearing point of view. In some embodiments, the surface of the hook-shaped component 11 in contact with the user's ear and/or head may be configured as a matte surface, a textured surface, or the like to increase friction between the hook-shaped component 11 and the ear and/or head of the user and overcome the self-weight of the mounting component 13 and structures therein, such as the central part 14, the motherboard 15, etc., thereby increasing the stability of the earphone 10 from a wearing point of view. Additionally, the free end of the hook-shaped component 11 (especially the area in which point A is located) can be deformed so that when the earphone 10 is in a wearing state, the free end of the hook-shaped component 11 can press against the user's head and become deformed. In such cases, the contact area between the free end of the hook-shaped component 11 and the user's head can be increased, thereby increasing the wearing comfort and stability of the earphone 10. For example, the hook-shaped component 11 may be dual-color injection molded, and the elastic modulus of the free end (especially the region in which point A is located) may be smaller than other regions to increase the deformability of the free end. As another example, the free end of the hook-shaped component 11 may be provided with one or more holes 111 in the hollow structure to increase the deformability of the free end. The hole(s) 111 may be through hole(s) and/or blind hole(s). The number of holes 111 may be one or more, and the direction of the axis of the hole(s) 111 may be perpendicular to the contact area between the free end of the hook-shaped component 11 and the user's head.

It should be noted that in order to take into account the comfort and stability requirements of the earphone 10 from a wearing point of view, the following improvements may also be made. In fig. 16 is a schematic diagram of surface structures of a skin contact area of a battery part in accordance with some embodiments of the present disclosure.

1) The skin contact area with the battery part can be formed with a texture structure. As shown in diagram (a) of FIG. 16, the texture structure may include a plurality of strip-shaped projections 112a located at intervals along the length direction of the hook-shaped component 11. As shown in diagram (b) of FIG. 16, the texture structure may also include a plurality of dot-shaped projections 112b located at intervals along the length direction of the hook-shaped component 11. In some embodiments, the texture structure may be in a grid-like shape.

2) As shown in diagram (c) in FIG. 16, the skin contact area on the battery portion may also be configured with a half-spindle projection 112c extending along the length direction of the hook-shaped component 11. Taking the free end of the hook-shaped component 11 as a reference, in a direction close to the free end of the hook-shaped component 11 (the direction shown by the arrow in FIG. 16), the protrusion height of each part of the half-spindle protrusion 112c relative to the hook-shaped component 11 can gradually increase and then gradually decrease. Thus, during the process in which the user wears the earphone 10, the half-spindle projection 112c and the user's skin can create as little resistance as possible. After the user finishes wearing the earpiece 10, the half-spindle projection 112c and the user's skin may provide as much resistance as possible to prevent the earpiece 10 from slipping off.

3) When the skin-battery part contact area is arranged as a matte surface, a material with relatively good skin-likeness may be preferable.

All kinds of the above-mentioned projections can be selected from materials with a relatively soft texture, a relatively large absorption coefficient and a certain degree of skin acceptability. Additionally, in various embodiments described above, the coefficient of friction of the skin contact region of the battery portion may be in the range of 0.1-1.0.

Just as an example, the linear distance between the projection of point C on the YZ plane and the projection of segment EF on the YZ plane can be in the range of 10-17 mm, preferably can be in the range of 12-16 mm, and more preferably can be in the range of 13-17 mm. 15 mm. The angle between the projection of segment BC on the XY plane and between the projection of segment DE on the XY plane may be in the range of 0-25°, preferably may be in the range of 0-20° and more preferably may be in the range of 2-20°. Additionally, the angle between segment AB and the normal passing through point B on the XY plane may be in the range of 0-25°, preferably may be in the range of 0-20°, and more preferably may be in the range of 2-20°. In some embodiments, the linear distance between the projection of point C on the XY plane and between the projection of segment EF on the XY plane may be in the range of 2-4 mm and, preferably, may be 2.8 mm. In other embodiments, the linear distance between the projection of point C on the XY plane and between the projection of segment EF on the XY plane may be in the range of 1-4 mm and, preferably, may be 2.5 mm. Therefore, the connecting component 12 can bypass the upper root of the ear when the earphone 10 is in a wearing state, thereby increasing the wearing comfort of the earphone 10.

Based on the above detailed description, according to the approach of the present disclosure, the weight of the earphone 10 can be distributed reasonably and evenly so that the user's ear can serve as a fulcrum for supporting the earphone 10 when the earphone 10 is in a wearing state. According to another approach of the present disclosure, the connection component 12 may be positioned between the hook-shaped component 11 and the attachment component 13 of the earphone 10, so that when the earphone 10 is in a wearing state, the connection component 12 can interact with the hook-shaped component 11 to provide the component with 13 attaching a pressing force to press on the outer side of the ear, thereby firmly pressing the earphone 10 to the user's ear in a wearing state. Such an installation can improve the stability of the earphone 10 from a wearing point of view and the reliability of the earphone 10 from a sound generation point of view.

Referring to FIG. 7-11, in fig. 7 is a schematic front view of a headphone structure in accordance with some embodiments of the present disclosure. In fig. 8 is a schematic left view of the earphone shown in FIG. 7. In FIG. 9 is a schematic front view of the earphone shown in FIG. 7, in wearing condition. In fig. 10 is a schematic rear view of the earphone shown in FIG. 7, in wearing condition. In fig. 11 is a schematic representation of the mechanical model of the earphone shown in FIG. 7, in wearing condition. It should be noted that the YZ plane in FIG. 11 can be considered as a plane in which the user's head is located. Section ABC in FIG. 11 can be considered as a hook-shaped component, the CD section of FIG. 11 can be considered as a connecting component and section DEF in FIG. 11 can be considered as a fastening component. Additionally, point C in FIG. 11 may correspond to the region in which the upper proximal end of the ear is located in FIG. 1 (area indicated by shaded box C in FIG. 1).

As shown in FIG. 4-6, when the earphone 10 is in a wearing state, the ABC section may be located primarily on the back side of the user's ear, the DEF section may be located primarily on the outer side of the user's ear, and the CD section may be primarily located on the back side of the user's ear. thus being able to adapt to the thickness of the user's ear. In such cases, the BC section, the CD section, and the DEF section may form a “clip”-like structure so that the earphone 10 can be fixed to the user's ear, thereby forming a basic wearing state. The following description may be an approximate description of the strength and stability of the earphone 10 from a wearing perspective:

The main difference from the above-mentioned embodiments may be that in the embodiment shown in FIG. 7 and 8, the hook-shaped component 11 may be positioned closer to the overall mounting component 13 so that when the earphone 10 is in a wearing state, as shown in FIG. 9 and 10, the free end of the hook-shaped component 11 away from the connecting component 12 could act on the back of the user's ear instead of pressing on the user's head.

As shown in FIG. 11, in the direction from the first connection point C between the hook-shaped component 11 and the connecting component 12 to the free end of the hook-shaped component 11 (for example, the end where point A is located in FIG. 11), the hook-shaped component 11 may be bent to the back of the ear to form the first contact point B with the back of the ear. The attachment component 13 may form a second contact point F with the outside of the ear. For the earphone 10 in a natural state (that is, not in a wearing state), the distance between the first contact point B and the second contact point F along the running direction of the connecting component 12 may be less than the distance between the first contact point B and the second contact point F along the direction passing the connecting component 12 in the wearing state, thereby providing the fastening component 13 with a pressing force on the outer side of the ear. In other words, when the earphone 10 is in a natural state, the distance between the first contact point B and the second contact point F along the running direction of the connecting component 12 can be smaller than the thickness of the user's ear, so that the earphone 10 can be pressed against the user's ear as " clip" in wearing condition.

Additionally, the first line BC may be provided between the first contact point B and the first connection point C, and the second line EF may be provided between the second contact point F and the second connection point E of the fastening component 13 and the connecting component 12.

Additionally, the hook-shaped component 11 may also extend in a direction away from the connecting component 12, that is, the overall length of the hook-shaped component 11 can be increased so that when the earphone 10 is in a wearing state, the hook-shaped component 11 can also form third contact point A with the back of the ear. The first contact point B may be located between the first connection point C and the third contact point A and in the vicinity of the first connection point C. For the earphone 10 in its natural state, the distance between the projections of the first contact point B and the third contact point A on a reference plane perpendicular to the direction of travel of the connecting component 12 (for example, the YZ plane in FIG. 11) may be less than the distance between the projections of the first contact point B and the third contact point A to a reference plane perpendicular to the passing direction of the connecting component 12 (for example, the YZ plane in FIG. 11) in the wearing state. With the arrangement described above, not only the free end of the hook-shaped component 11 can press on the back side of the user's ear, but also the section ABC can be in the shape of C, where the third contact point A can also be located in the ear region near the earlobe, thus , the hook-shaped component 11 can fix the user's ear in a vertical direction (as indicated by arrow Z in FIG. 11) to overcome the self-weight of the fastening component 13. In addition, after the overall length of the hook-shaped component 11 is increased, the hook-shaped component can not only fix the user's ear in the vertical direction, but also increase the contact area between the hook-shaped component 11 and the user's ear, that is, the friction between the hook-shaped component 11 and the user's ear can be increased, thereby increasing the stability of the earphone 10 from a wearing point of view.

It should be noted that in order to take into account the comfort and stability requirements of the earpiece 10 from a wearing point of view, the following improvements can also be made:

1) Since the hook-shaped component 11 needs to be adjusted to different users' ears, and different users' ears may have different sizes and shapes, the free end of the hook-shaped component 11 (such as the battery part) may be prone to hanging in the air when the earphone 10 is worn by a user with small ears. That is, the hook-shaped component 11 and the user's ear can only form the first contact point B. Accordingly, in combination with FIG. 7 and fig. 8, for the hook-shaped component 11, the outer diameter of the battery portion may be larger than other middle portions, that is, there may be a step differentiation, thereby forming a progressive coverage design. With the above arrangement, in combination with FIG. 9 and fig. 10, when the user wears the earphone 10 on himself, the hook-shaped component 11 can not only form a first contact point B with the user's ear, but also the free end of the hook-shaped component 11 can form a third contact point A with the user's ear. That is, the battery portion can form a third contact point A with the user's ear under any circumstances. Obviously, to adapt to a wide group of users, a plurality of progressive coverage designs can be distributed at intervals along the length direction of the hook-shaped component 11.

2) In the same situation, the ratio of the length of the battery portion to the long diameter of the outer diameter of the battery portion may also affect the attachment of the hook-shaped component 11 to the user's ear. The inventor(s) of the application discovered in a long-term study that, as shown in FIG. 7 and 8, the length to long diameter ratio of the outer diameter of the battery portion may be 6:1, preferably may be 4:1. In this case, the hook-shaped component 11 can not only form a first contact point B with the user's ear, but the free end can also form a third contact point A with the user's ear. In this way, the battery part can be adjusted to the user's ears.

In fig. 12 is a schematic top view of a headphone structure in accordance with some embodiments of the present disclosure.

Based on the above description, as shown in FIG. 1, the user's ear 100 may typically have recessed areas such as an ear cavity 102, an auricle 103, a triangular socket 104, a cape 106, and the like. Accordingly, the user's ear 100 may also typically have protruding areas such as an antihelix 105, a helix 107, helix crura 109, and the like. Based on the concave and convex structures of the ear 100, the earphone 10 can also be tightly attached to the corresponding positions of the ear 100 through elastic clamping, elastic abutment, hanging and covering, and the like, thereby improving the wearing comfort and reliability of the earphone 10 .

Additionally, in combination with FIG. 2-5, the outer surfaces of the fastening component 13 can be defined as follows: 1) the side of the fastening component 13 in contact with the user's skin can be defined as the inner surface; 2) the side of the fastening component 13 opposite the inner surface in the X direction can be defined as the outer surface; 3) the side of the fastening component 13 facing the positive direction of the Z-direction can be defined as the top surface; 4) the side of the fastening component 13 facing the negative direction of the Z-direction can be defined as the bottom surface; 5) The side of the fastening component 13 directed in the negative direction of the Y direction can be defined as the rear surface. If the fastening component 13 has a non-cubic structure such as shown in FIG. 2 and 3, but has a structure such as a cylinder, an elliptical cylinder and the like, the upper surface, the lower surface and the rear surface can be equally defined as the peripheral surface.

The main difference from any of the above-mentioned embodiments may be that in the present embodiment, the attachment component 13 may not only press against the outer side of the user's ear, but may also extend further and be retained in the pinna and/or the triangular socket of the ear. With the above-mentioned arrangement, the fastening component 13 can be stopped and blocked by the curl of the ear at least in the direction of passage of the connecting component 12 to prevent the fastening component 13 from being everted when the earphone 10 is in a wearing state, thereby increasing the stability of the earphone 10. wearing point of view.

Just as an example, as shown in FIG. 12, the earphone 10 may further include a pass-through component 17 coupled to the mounting component 13. In the direction of passage of the connecting component 12 (as indicated by arrow X in FIG. 12), the passing component 17 and the fastening component 13 may have a gap, and the gap may be less than or equal to the thickness of the ear helix. In the above-mentioned arrangement, when the earphone 10 is in a wearing state, the passing component 17 may extend into the pinna and/or the triangular socket of the ear. In this case, since the pinna and/or triangular socket have a certain depth and volume in three-dimensional space, the attachment component 13 can engage the helix of the ear when the passing component 17 passes into the pinna and/or triangular socket to prevent the component from everting 13 fastening when the earphone 10 is in a wearing state, thereby increasing the stability of the earphone 10 from a wearing point of view. At the same time, the fastening component 13 can press on the outer side of the ear under the above-mentioned pressing force. The attachment component 13 and the outer side of the ear may cooperate with each other, which is advantageous for increasing the stability of the earphone 10 from a wearing point of view.

In fig. 17 is a schematic representation of various designs of the pass-through component shown in FIG. 12. In some embodiments, as shown in diagram (a) of FIG. 17, the pass-through component 17 may be located primarily in the inner surface and/or the bottom surface of the attachment component 13 and is positioned to be able to pass into the ear cavity 102 after the user puts on the earphone 10. In this case, the pass-through component 17 can be pressed tightly against the ear cavity 102 and surrounding body tissues, elastically pressing against them.

In other embodiments, as shown in diagram (b) of FIG. 17, the pass-through component 17 may be located primarily on the inner surface of the attachment component 13 and be positioned to be able to pass into the pinna 103 after the user puts on the earphone 10. In this case, the pass-through component 17 may be pressed tightly against the auricle 103 and surrounding body tissues by elastically fixing and/or elastically pressing against them.

In other embodiments, as shown in diagram (c) of FIG. 17, the pass-through component 17 may be located primarily on the upper surface of the mounting component 13 and positioned to be able to fit into the triangular recess 104 after the user puts on the earphone 10. In this case, the pass-through component 17 may be pressed tightly against the triangular recess 104. cavity 104 and surrounding body tissues through elastic fixation and/or elastic pressing.

In other embodiments, as shown in diagrams (d) or (e) of FIG. 17, the pass-through component 17 may be located primarily on the top surface and/or the back surface of the attachment component 13 and is positioned to be able to pass into the suit 106 after the user puts on the earpiece 10. In this case, the pass-through component 17 may be tightly secured to the suit 106 and surrounding body tissues through elastic locking and/or elastic pressing.

In other embodiments, as shown in diagram (f) of FIG. 17, the passing component 17 may be located primarily on the back surface of the attachment component 13 and is positioned to be able to bend and extend from the outside of the ear 100 to the back of the ear 100 after the user wears the earpiece 10 to engage the curl. 107. In this case, the passing component 17 can be tightly adhered to the helix 107 and surrounding tissues through adhesion and coating.

In other embodiments, as shown in diagram (g) of FIG. 17, the passing component 17 may be located mainly on the hook-shaped component 11, for example, at a position of the hook-shaped component 11 close to the battery part. The pass-through component 17 may be configured to bend and extend from the back of the ear 100 to the outside of the ear 100 after the user wears the earpiece 10 to engage the antihelix 105. In this case, the pass-through component 17 may be tightly coupled to the antihelix 105 and surrounding tissues. body through adhesion and coating.

In other embodiments, as shown in diagram (h) of FIG. 17, the passing component 17 may be located primarily on a hook-shaped component 11 such as a battery part, and is configured to bend and extend from the back side of the ear 100 to the outside of the ear 100 after the user puts on the earphone 10. thereby interlocking with the helix 107. In this case, the passing component 17 can be tightly coupled with the helix 107 and surrounding body tissues through adhesion and coating.

It should be noted that design parameters such as the size and shape of the pass-through component 17 can be conceived and designed according to the matching requirements between the pass-through component 17 and the ear 100, which are not limited here. Additionally, the passing component 17 and the corresponding structural component on the earphone 10 can be integrally molded, that is, the passing component 17 and the corresponding structural component on the earphone 10 cannot be separated. In some embodiments, the pass-through component 17 and the corresponding structural component on the earpiece 10 may also be connected in a removable manner. For example, the mounting component 13 or the corresponding battery portion position may be configured with a mounting hole, and the passing component 17 may be inserted into the mounting hole. As another example, the pass-through component 17 may be integrally molded with another elastic collar, such that the pass-through component 17 can have a collar connection at a suitable location on the fastening component 13 or on the hook-shaped component 11 through the elastic seal.

Additionally, in combination with FIG. 12, the size of the fastening component 13 in the Y direction may be in the range of 22-34 mm, preferably may be in the range of 24-28 mm, and more preferably may be 26 mm, so that the fastening component 13 can press on the outer side of the ear 100 In this case, in combination with FIG. 17, the height dimension of the passing component 17 in the Z direction can be in the range of 4-8 mm, and the projection length of the passing component 17 on the XY plane can be in the range of 8-15 mm, and the projection width can be in the range of 2-5 mm.

In fig. 13 is a schematic front view of a headphone structure in accordance with some embodiments of the present disclosure.

The main difference from any of the above-mentioned embodiments is that, in the present embodiment, the fastening component 13 may be of a multi-section structure to facilitate adjustment of the relative position of the central portion 14 throughout the structure of the earphone 10. In the above-mentioned arrangement, when the earphone 10 is in a wearing state , it cannot block the external auditory canal and the central part 14 can be located as close as possible to the external auditory canal.

Just to give an example, as shown in diagram (a) of FIG. 13, the fastening component 13 may include a first fastening section 131a, a second fastening section 132a, and a third fastening section 133a, connected in close proximity in series. The end of the first fastening section 131a, distal from the second fastening section 132a, may be attached to the connection component 12. The third fastening section 133a may be configured primarily to accept structural assemblies such as the center portion 14, the system board 15, etc. .P. Additionally, the second fastening section 132a may be rotated back relative to the first fastening section 131a and maintains a distance therebetween to cause the first fastening section 131a and the second fastening section 132a to form a U-shaped structure.

Just by way of example, as shown in diagram (b) of FIG. 13, the fastening component 13 may include a first fastening section 131b, a second fastening section 132b, and a third fastening section 133b connected in series and in close proximity. The end of the first fastening section 131b, distal from the second fastening section 132b, may be attached to the connection component 12. The third fastening section 133b may be configured primarily to accept structural assemblies such as the center portion 14, the system board 15, etc. .P. Additionally, the second fastening section 132b may be bent relative to the first fastening section 131b so that a gap can be provided for the third fastening section 133b and the first fastening section 131b.

As shown in FIG. 14 and 15, in fig. 14 is a schematic diagram of a headphone design in accordance with some embodiments of the present disclosure. In fig. 15 is a schematic representation of the mechanical model of the earphone shown in FIG. 14, in wearing condition. It should be noted that the YZ plane in FIG. 15 can be considered as a plane in which the user's head is located. Section BC in FIG. 15 can be considered as a hook-shaped component, the CD section of FIG. 15 can be considered as a connecting component, section DEF in FIG. 15 can be considered as a fastening component and section GH in FIG. 15 can be considered as a passing component. Additionally, point C in FIG. 15 may correspond to the region in which the upper proximal end of the ear is located in FIG. 1 (for example, the area indicated by shaded box C in FIG. 1).

The main difference from any of the above-mentioned embodiments may be that in the present embodiment, as shown in FIG. 14, the length of the hook-shaped component 11 may be relatively short, and the angle between the hook-shaped component 11 and the connecting component 12 may be relatively small. The passing component 17 can be attached to the fastening component 13 and has a gap with the fastening component 13. The gap may be less than or equal to the thickness of the ear helix. In the above-mentioned arrangement, when the earphone 10 is in a wearing state, the hook-shaped component 11 can cooperate with the connecting component 12 so that the fastening component 13 can be hung on the outer side of the user's ear, and the passing component 17 can be passed into the pinna and/or or into the triangular cavity of the ear to prevent the fastening component 13 from being unscrewed, thereby improving the stability of the earphone 10 from a wearing point of view. In an embodiment, the passing component 17, which can extend into the pinna, can be used as an example for illustration.

As shown in FIG. 15, point B can cling to the depression on the back side of the ear, and point C can be considered as a fulcrum so that the hook-shaped component 11 can overcome the weight of the fastening component 13, thereby preventing the fastening component 13 from falling off the user's ear. In this case, the friction between the hook-shaped component 11 and the ear can be increased to improve the stability of the earphone 10 from a wearing point of view. Additionally, point H may cling to the helix of the ear and point G may be considered as another fulcrum so that the passing component 17 can overcome the weight of the attachment component 13, thereby preventing the attachment component 13 from being everted out of the user's ear. In this case, the friction between the passing component 17 and the ear can be increased to improve the stability of the earphone 10 from a wearing point of view.

Based on the accompanying description mentioned above, different users may have significant differences in age, gender and genetically determined appearance. As a result, the ears and heads of different users may have different sizes and shapes. Based on any of the above-mentioned embodiments, the following improvements can also be made to the respective designs of the earphone 10, so that the earphone 10 can meet the wearing needs of a wider group of users and allow different users to have good comfort and stability when wearing the earphone 10.

In fig. 18 is a schematic diagram of a headphone design in accordance with some embodiments of the present disclosure.

The main difference from any of the above-mentioned embodiments may be that in the present embodiment, in combination with FIG. 18, the free end of the hook-shaped component 11 may also be formed in conjunction with the elastic structure 18. The elastic structure 18 may be made of soft materials, have a certain structural strength, and take into account the comfort of the user wearing the earphone 10. Additionally, the elastic structure 18 may be tubular, and may have a removable cuff at the free end of the hook-shaped component 11. In such cases, the elastic structure 18 can be used as an auxiliary element of the earphone 10 to facilitate installation or removal by the user according to the actual application requirements. In some embodiments, the portion of the elastic structure 18 in contact with the user may have a textured structure and/or a matte surface.

Just by way of example, the resilient structure 18 may include a first tubular portion 181 and a second tubular portion 182 that are integrally coupled to each other. The first tubular portion 181 and the second tubular portion 182 may be in a bent shape, and the bending angle can be reasonably determined in design according to actual use requirements. In some embodiments, the elastic structure 18 may have some memory characteristic for at least the bend position so that the user can flexibly adjust the bend angle through bending, rotation, or the like. With the above-mentioned arrangement, during the process in which the user wears the earphone 10, the elastic structure 18 can engage the pinna at the back of the user's ear to prevent the earphone 10 from sliding off.

Additionally, both the first tubular portion 181 and the second tubular portion 182 may have a hollow tubular shape, and the first tubular portion 181 and the second tubular portion 182 may or may not be connected to each other. The first tubular portion 181 and the second tubular portion 182 may both have cuffs at the free end of the hook-shaped component 11. In an embodiment, the first tubular portion 181 and the second tubular portion 182 not connected to each other can be taken as an example for illustrative description, and in this case, the structural strength of the elastic structure 18 in a bent position can be improved. The length (L1) of the first tubular portion 181 and the length (L2) of the second tubular portion 182 may not be equal, so the user may select the first tubular portion 181 or the second tubular portion 182 to have a cuff at the free end of the hook-shaped component 11 according to with the actual usage requirements, thereby adjusting the actual overall length of the hook-shaped component 11 and the elastic structure 18. In such cases, the elastic structure 18 may partially or completely cover the battery portion. In combination with fig. 18, in an embodiment, the elastic structure 18 partially covering the battery part may be taken as an example for illustrative description, for example, the elastic structure 18 may cover half of the battery part.

In a long-term study, the inventors of the present disclosure discovered that in combination with FIG. 18, when the length difference between the length (L1) of the first tubular portion 181 and the length (L2) of the second tubular portion 182 is in the range of 2.0 to 8.0 mm, the elastic structure 18 can engage the pinna on the back side of the ear when the earpiece 10 is worn by various users. In some embodiments, the difference in length may be in the range of 3.5-7.0 mm.

Based on the above-mentioned detailed description, after the free end of the hook-shaped component 11 is covered with the elastic structure 18, the outer diameter of the battery part can also be increased. Thus, the actual outer diameter of the free end of the hook-shaped component 11 can be varied so that the opening angle of the outer pinna of different groups of users can be adapted, especially for those with large ears, thus solving the problems of rotation and eversion of the earpiece 10. By By designing the wall thickness of the first tubular portion 181 and/or the second tubular portion 182, a difference between the elastic structure 18 and the battery portion may be formed to achieve a technical effect similar to the above-mentioned progressive wrapping.

Referring to FIG. 19 and 20, in fig. 19 is a schematic perspective view of the structure of the hook-shaped component shown in FIG. 8. In FIG. 20 is a schematic cross-sectional view of the elastic metal wire structure shown in FIG. 19, on a reference plane perpendicular to the direction of passage of the hook-shaped component. It should be noted that the elastic metal wire shown in FIG. 19 may generally be built into a hook-shaped component, etc., and is therefore invisible. To simplify the description, the elastic metal wire may be shown to be externally visible, for example, a portion of the material covering the elastic metal wire may be removed.

Based on the relevant description above, the hook-shaped component 11, the connecting component 12, the fastening component 13 or other structures may also be made with elastic metal wire 115, such as spring steel wire, titanium alloy wire, titanium alloy wire. nickel alloy, chromium-molybdenum steel wire, etc., to improve the structural strength of the earphone 10. Generally, the cross-section of the elastic metal wire 115 may be circular.

As shown in FIG. 19 and 20, the elastic metal wire 115 may have a flat sheet structure, so that the elastic metal wire 115 can have different deformability in different directions. The cross-section of the elastic metal wire 115 may be a rounded rectangle, as shown in diagram (a) of FIG. 20. The cross section of the elastic metal wire 115 may also be an ellipse as shown in diagram (b) of FIG. 20. Just as an example, the ratio of the long side (or major axis, L3) of the elastic metal wire 115 to the short side (or minor axis, L4) may be in the range of 4:1-6:1, preferably may be 5:1. Additionally, in combination with circuit (c) in FIG. 20, for the cross section of the elastic metal wire 115 in the form of a rounded rectangle shown in diagram (a) of FIG. 20, the elastic metal wire 115 may also be shaped into an arc in the minor axis direction by a process such as stamping, pre-bending and the like, so that the elastic metal wire 115 can store a certain amount of elastic potential energy. For example, the initial state of the elastic metal wire 115 may be a twisted state, and after straightening, the state of the elastic metal wire 115 may be made into an arc in the minor axis direction through a stamping process, so that the elastic metal wire 115 can maintain a certain internal stress and maintain a straight shape so that become a “metal memory wire.” When a relatively small external force is applied, the resilient metal wire 115 may return to a curled state so that the hook-shaped component 11 can be attached and cover the user's ear. Just as an example, the ratio of the arc height (L5) of the elastic metal wire 115 to the long side (L3) can be in the range of 0.1-0.4.

With the above-mentioned arrangement, under the action of the elastic metal wire 115 with a flat sheet structure, the hook-shaped component 11 has high strength in the X direction, thereby making the hook-shaped component 11 and the fastening component 13 act together to form an elastic ear clip 100 user. In addition, the hook-shaped component 11 may have high elasticity due to bending along the length direction, so that the hook-shaped component 11 can elastically press the user's ear or head.

In fig. 21 is a schematic front view of a headphone structure in accordance with some embodiments of the present disclosure.

The main difference from any of the above-mentioned embodiments may be that in the present embodiment, as shown in FIG. 21, in order to improve the comfort and stability of the earphone 10 from a wearing point of view, the connection position between the connecting part 12 and the fastening part 13 can also be adjusted. For example, the connecting component 12 may be connected primarily to the lower edge of the fastening component 13, such that the upper half of the fastening component 13 (indicated by the shaded frame in FIG. 21) cannot be restrained by the connecting component 12, thereby compensating for the rotational torque of the component. 13 mount facing outward from ear 100.

As shown in FIG. 22 and 23, in fig. 22 is a schematic diagram of a rotating axle assembly structure according to an embodiment of the present disclosure. In fig. 23 is a schematic diagram of the structure of the rotating axis assembly shown in FIG. 22, before and after assembly. It should be noted that the rotating axle assembly shown in FIG. 22 may generally be incorporated into a connection component or the like. and therefore invisible. To simplify the description, the rotating axis assembly may be shown as externally visible, for example, a portion of the material covering the rotating axis assembly may be removed.

As shown in FIG. 22, the rotating axis mechanism 121 may be arranged to become a curved metal elastic sheet. One end of the rotating axis mechanism 121 may be attached to the hook-shaped component 11, and the other end may be used as a part of the connecting component 12. For example, a metal elastic sheet may be combined with the connecting component 12 through a metal insert injection molding process and connected to the component 11 in the shape of a hook. With the above-mentioned arrangement, the metal elastic sheet can be deformed under the action of an external force F, so that the hook-shaped component 11 can switch between a first use state (for example, as indicated by a solid line in FIG. 22) and a second use state (for example, as indicated by a dotted line). line in Fig. 22) relative to the mounting component 13. That is, the hook-shaped component 11 can be rotated relative to the fastening component 13.

Just as an example, in combination with fig. 23, the metal resilient sheet may include a first deformable portion 1211, a second deformable portion 1212, and an intermediate connecting component 1213. Before installing the metal resilient sheet, in combination with diagram (a) in FIG. 23, the first deformable portion 1211 and the second deformable portion 1212 may be bent and attached to two ends of the intermediate connecting component 1213, respectively. Additionally, after the metal elastic sheet is installed, in combination with circuit (b) in FIG. 23, the free end of the first deformable portion 1211 away from the intermediate connecting component 1213 and the free end of the second deformable portion 1212 located away from the intermediate connecting component 1213 can be directly suspended to form a triangular structure and bent along the length direction of the component. 11 in the shape of a hook or further be attached to an elastic metal wire in the component 11 in the shape of a hook. With the above-mentioned arrangement, the metal elastic sheet can retain a certain amount of elastic potential energy after installation, so that the metal elastic sheet can be deformed under the action of an external force F.

Additionally, before installing the metal elastic sheet as shown in diagram (a) of FIG. 23, the length of the first deformable portion 1211 and the length of the second deformable portion 1212 may be equal (referred to as L6) and may be greater than the length of the intermediate connecting component 1213 (L7). L3 and L4 can satisfy the following relationship: 0.1 ≤ L7/L6 ≤ 0.6. In some embodiments, the thickness of the metal resilient sheet may be in the range of 0.1-0.8 mm.

As shown in FIG. 24-28, in fig. 24 is a schematic diagram of a rotating axis assembly structure according to another embodiment of the present disclosure. In fig. 25 is an exploded view schematically showing the structure of the rotating axis assembly shown in FIG. 24 corresponding to an embodiment of the present disclosure. In fig. 26 is a schematic cross-sectional view of the structure of the rotating axle assembly shown in FIG. 25. In FIG. 27 is a schematic exploded view of the structure of the rotating axis assembly shown in FIG. 24, corresponding to another embodiment of the present disclosure. In fig. 28 is a schematic cross-sectional view of the rotating axle assembly structure shown in FIG. 27.

Just by way of example, according to FIG. 24, the rotating axis mechanism 121 may include a first coupling socket 1214, a second coupling socket 1215, a rotating axis 1216, and a resilient block 1217. The first coupling socket 1214 may be part of the coupling component 12. The second coupling socket 1215 may be coupled to the hook-shaped component 11 ( or with metal elastic wire 115 in it). The second connection socket 1215 may also be used as part of the hook-shaped component 11. Additionally, the first connection socket 1214 and the second connection socket 1215 may be connected by a rotating axis 1216, so that the first connection socket 1214 and the second connection socket 1215 can be relatively rotated and the hook-shaped component 11 can be rotated relative to the connection component 12 and the fastening component 13 through the mechanism 121 rotating axis. In combination with fig. 25-28, the elastic block 1217 may be positioned to be supported by an elastic force between the first connection socket 1214 and the second connection socket 1215 to maintain the state of the hook-shaped component 11 after rotation relative to the fastening component 13. In the above-mentioned arrangement, when the user wears the earphone 10, the hook-shaped component 11 can be adjusted to better attach to the ear 100, thereby increasing the wearing comfort and stability of the earphone 10.

In some embodiments, in combination with FIG. 25 and 26, the second connection socket 1215 may be partially inserted into the first connection socket 1214 so that the rotating axis 1216 can pass through the first connection socket 1214 and the second connection socket 1215 simultaneously to realize rotational interaction. Additionally, the first coupling receptacle 1214 may be configured with an open-end receiving cavity 12141, and the elastic assembly 1217 may include an elastic member 12171 and a support and retention member 12172. A resilient member 12171 may be positioned within the accommodation cavity 12141. One end of the support and retention element 12172 may partially extend into the accommodation cavity 12141 to support and retain the elastic element 12171. The other end of the support and retention element 12172 may support and retain the second connection socket 1215.

It should be noted that in order to simplify the elastic assembly 1217 to be elastically supported between the first coupling socket 1214 and the second coupling socket 1215, the elastic member 12171 may be in a compressed state after the rotating axis mechanism 121 is assembled. In such cases, when the user wears the earpiece 10, especially when the user's ear 100 is large, the hook-shaped component 11 and the resilient metal wire 115 therein may be forced to rotate relative to the mounting component 13 or tend to rotate, thereby causing thus, the second coupling socket 1215 rotates relative to the first coupling socket 1214, and causing the support and retention element 12172 to compress the elastic element 12171. Based on Newton's third law, the elastic element 12171 can respond to the support and retention element 12172 to support and retain the second coupling socket 1215, thereby causing at least the hook-shaped component 11 to be more closely pressed against the user's ear 100.

In other embodiments, in combination with FIGS. 27 and 28, the end of the support and retention member 12172 facing away from the elastic member 12171 may be mounted into a spherical structure, a fibrous structure, or the like. The end of the second connecting socket 1215, located away from the elastic metal wire 115, may be formed with a plurality of grooves distributed along the circumferential direction of the rotating axis 1216. The supporting and holding member 12172 may be partially clamped in the grooves by the elastic force of the elastic member 12171. In other words, after the hook-shaped component 11 is rotated at various angles relative to the fastening component 13, the supporting and holding member 12172 can be locked in various grooves, respectively, thereby achieving the purpose of multi-level adjustment.

In fig. 29 is a schematic cross-section of an earphone structure in the XY plane corresponding to some embodiments of the present disclosure.

In some embodiments, earphone 10 may be an air conduction earphone. Taking the air conduction earphone 10 as an example, a mounting component, a center portion, a motherboard, or other structural parts may be approximately described.

In combination with fig. 29, the fastening component 13 may include an inner housing 131c and an outer housing 132c, which may be joined to form a cavity structure for housing structural components such as a center portion 14, a system board 15, and the like. It should be noted that when the user wears the earphone 10, the inner housing 131c may contact primarily the user's ear 100. Since a large number of electronic components with different sizes and shapes are often integrated on the motherboard 15, the interior of the cavity of the mounting component 13 may become extremely complex, which may easily affect the acoustic performance of the earphone 10. Accordingly, in an embodiment, the section 133c may be located in the component 13 fasteners to separate the center portion and the system board 15 and form a cavity 200c independent of the system board 15. The cavity 200c may have a relatively smooth inner wall. With the above arrangement, since the cavity 200c can be protected from the influence of the motherboard 15 and the electronic components thereon, the acoustic performance of the earphone 10 can be effectively improved.

Just by way of example, section 133c may be directly coupled to central portion 14, for example, section 133c and central portion 14 may be glued together to directly form cavity 200c. The inner wall of the cavity 200c formed by the section 133c and the central part 14 can avoid sharp structures such as right angles, sharp corners and the like as much as possible. Additionally, the edges of the section 133c and the central portion 14 may also be wrapped with an elastic member (not shown in the drawing), thereby forming an interference fit with the inner wall of the mounting component 13 to achieve acoustic insulation.

Based on the above description, in a wearing state, the earphone 10 can be attached to the ear. To increase stability and wearing comfort, the earpiece 10 may be elastically clamped to the ear.

Just as an example, in combination with fig. 30, in FIG. 30 is a schematic diagram of an ear-facing earpiece design in accordance with some embodiments of the present disclosure. The hook-shaped component 11 may include an elastic component 112 connected to the connecting component 12 and a battery portion 113 located at the free end of the hook-shaped component 11. The battery portion 113 may be used to at least accommodate a battery 16 of the earphone 10. The battery 16 may be arranged in a columnar shape. To facilitate installation of the battery 16, the battery portion 113 may be made of hard materials, such as a hard plastic material. In consideration of wearing comfort, at least the area of the battery portion 113 in contact with the user's skin may be provided with an elastic coating sprayed with an elastic paint or the like. Additionally, compared with the battery part 113, the elastic component 112 may have a certain elastic deformability so that the hook-shaped component 11 can be deformed under the action of an external force, thereby creating an offset relative to the fastening component 13 to allow the component 11 to the hook shape interacts with the fastening component 13, elastically clamping the ear. During the process in which the user wears the earphone 10, the user may first apply a slight force to cause the hook-shaped component 11 to deviate from the fastening component 13 so that the ear can pass between the fastening component 13 and the hook-shaped component 11. Once an acceptable wearing position has been achieved, the user may proceed to allow the earphone 10 to be elastically secured. In some embodiments, the wearing position of the earphone 10 on the ear may also be further adjusted according to actual wearing situations.

In some embodiments, the ratio of the length of the elastic component 112 to the length of the hook-shaped component 11 may be greater than or equal to 48%, and preferably may be greater than or equal to 60%. The radial dimension in any cross-sectional direction of the elastic component 112 may be less than or equal to 5 mm, and preferably may be less than or equal to 4 mm. In such cases, the elastic component 112 may be arranged in a thin structure so that the elastic component 112 can have excellent elastic deformation ability, thereby causing the earphone 10 to be resiliently and sufficiently pressed against the ear. Moreover, the cross-sectional area of the elastic component 112 can be as small as possible so that adequate space can be left for wearing myopia glasses, hyperopia glasses or smart glasses such as AR, VR, MR and the like, considering thus, other wearing needs of the user. Additionally, since the hook-shaped component 11 is hung primarily between the user's head and ear, the cross-section of the elastic component 112 may be circular or elliptical so that the elastic component 112 can make at least good contact with the ear and/or head and could be as close as possible to the boundary between the ear and head, thus increasing the stability of wearing.

In some embodiments, the cross-sectional area of at least a portion of the battery portion 113 may be larger than the maximum cross-sectional area of the elastic component 112, so that the battery portion 113 may be configured with a battery 16 having a relatively large capacity to increase the durability of the earphone. 10. In some embodiments, the battery portion 113 may be arranged in a columnar shape and the length to outer diameter ratio may be less than or equal to 6.

Based on the above related description, for the hook-shaped component 11, since the elastic component 112 and the battery portion 113 have different uses, the cross-sectional areas of the elastic component 112 and the battery portion 113 may be very different. Accordingly, the hook-shaped component 11 may further include a transition piece 114 between the elastic component 112 and the battery portion 113. The cross-sectional area of the transition piece 114 may lie between the cross-sectional area of the elastic component 112 and the cross-sectional area of the battery portion 113 and gradually increase in the direction from elastic component 112 to the battery portion 113. In such cases, not only can the external uniformity of the hook-shaped component 11 be increased, but also the hook-shaped component 11 can make good contact with the ear and/or the head. Additionally, since there are usually many bulges on the back side of the ear, for example, auricular bulges corresponding to the auricle and ear cavity bulges corresponding to the ear cavity, and the ear bulge is usually closer to the earlobe than the ear bulge, so that the transitional the piece 114 may be configured with a profile reduction corresponding to the rear contour of the ear on the side facing the ear, thereby assisting the hook-shaped component 11 to form effective contact with the rear side of the ear. For example, the profile reduction may contact the convexity of the ear cavity. In short, the bulges on the back of the ear can be circumvented by using a drop profile to prevent the bulges on the back of the ear from pushing upward on the hook-shaped component 11 and to establish good contact between the hook-shaped component 11 and the ear. In some embodiments, for the transition piece 114 on a reference cross section mounted along the central axis of the battery portion 113, the radius of curvature of the profile drop may be less than the radius of curvature of the other side of the transition piece 114 facing away from the ear. That is, the degree of curvature of the reduction of the reduction profile can be greater so that the hook-shaped component 11 can adapt to various bulges and depressions on the back side of the ear. Other areas of the transition piece 114 may be primarily configured to smooth out the gap between the elastic component 112 and the battery portion 113 as quickly as possible, thereby increasing the external uniformity of the hook-shaped component 11.

It is well known that in the fields of medicine, anatomy, etc. Three main sections can be defined, containing the sagittal plane, coronal plane, plane and horizontal plane of the human body, respectively, and three main axes can be defined, containing the sagittal axis, coronal axis and vertical axis. As used here, the sagittal plane can refer to a section perpendicular to the ground along the outer and posterior directions of the body, which divides the human body into left and right sides. The coronal plane can refer to a section perpendicular to the ground along the left and right directions of the body, which divides the human body into outer and back parts. The horizontal plane may refer to the section parallel to the ground in the upward and downward direction of the body, which divides the human body into upper and lower parts. Accordingly, the sagittal axis may refer to an axis passing through the coronal plane perpendicular to the outer and posterior direction of the body. The coronal axis can refer to the axis passing through the sagittal plane perpendicular to the left and right directions of the body. Vertical axis may refer to an axis extending vertically through a horizontal plane along the up and down direction of the body.

Based on the above related description, the weight and weight distribution of the earphone 10 may affect the wearing stability to some extent. The weight of the hook-shaped component 11 may be primarily concentrated in the battery portion 113. In some embodiments, the weight ratio for the ratio of the total weight of the attachment component 13 to the total weight of the battery portion 113 may be less than or equal to 4. In FIG. 31 is a schematic diagram of an ear-facing earphone design corresponding to some embodiments of the present disclosure. As shown in FIG. 31, in the wearing state and viewed from the ear-direction side of the attachment member 13, the battery portion 113 may be at least partially located on the side of the first reference plane (denoted as RP1) immediately in front of the user. The first reference plane may pass through a contact point (designated CP0) between the attachment component 13 and the ear and may be parallel to the coronal plane. In such cases, it may be preferable to reduce the moment of the center of gravity of the battery portion 113 relative to, for example, the upper root of the ear, to prevent the battery portion 113 from rotating due to excessive weight and/or excessive moment in the wearing state, thereby improving wearing stability. Additionally, the battery portion 113 may also intersect with the second reference plane (denoted RP2). The second reference plane may extend through a first position point (designated CP1) of the elastic component 112 closest to the crown of the user along a vertical axis, and may be parallel to the coronal plane. Additionally, the inner edge of the hook-shaped component 11 or the ear-facing connecting component 12 may have a second position point (denoted as CP2) furthest from the contact point between the fastening component 13 and the ear. The battery portion 113 may further intersect with a third reference plane (denoted RP3). The third reference plane may pass through the second position point and be parallel to the coronal plane. The second position point may be on the connecting component 12 or at the boundary between the hook-shaped component 11 and the connecting component 12a, and may be shown as an example in the following description. In such cases, it may be preferable for the center of gravity of the battery portion 113 and the center of gravity of the fastening component 13 to be located on the same side of the first support plane, thereby increasing the wearing stability.

For ease of description and connection with FIG. 30, the fastening component 13 may have a thickness direction, a length direction and a height direction orthogonal to each other, which may be sequentially designated as "X", "Y" and "Z", respectively. The thickness direction can be defined as the direction in which the attachment component 13 is near or away from the ear in a wearing state. The length direction can be defined as the direction in which the fastening component 13 is close to or away from the outside of the user in a wearing state. The height direction can be defined as the direction in which the fastening component 13 is near or away from the top of the user's head in a wearing state. In the wearing state, the height direction can be parallel to the vertical axis. The thickness direction and length direction can be parallel to the horizontal plane.

In fig. 32 is a schematic diagram of a headphone design from the top of a user's head in accordance with some embodiments of the present disclosure. In some embodiments, as shown in FIG. 30-32, the orthogonal projection of a section of the hook-shaped component 11 near the connecting component 12 onto a reference plane perpendicular to the thickness direction (for example, the plane in which YZ is located) and the orthogonal projection of the fastening component 13 onto the reference plane mentioned above may partially overlap . The hook-shaped section of component 11 proximate the connection component 12 may be a resilient component 112 with a much greater elastic deformation capability than the battery portion 113, or may be a rigid structure located between the battery portion 113 and the connection component 12 and having the same elasticity capability. deformation as the battery part 113. In such cases, the fastening component 13 and the hook-shaped component 11 can not only elastically fix the ear on the outer side of the ear and on the back side of the ear, but the clamping force can manifest itself mainly as a compressive stress, thus increasing stability and wearing comfort. In addition, it may be preferable for the center of gravity of the battery portion 113 to be located close to the user's face, thereby increasing wearing stability. In other embodiments, such as the earpiece shown in FIG. 4 and 5, or the earphone shown in FIG. 9 and 10, the orthogonal projection of the hook-shaped component 11 on the reference plane perpendicular to the thickness direction and the orthogonal projection of the fastening component 13 on the reference plane mentioned above may also be spaced from each other.

Just as an example, in combination with fig. 30 and fig. 31, the orthogonal projection of the elastic component 112 on the reference plane and the orthogonal projection of the mounting component 13 on the reference plane may be partially superimposed, and the orthogonal projection of the battery part 113 on the reference plane and the orthogonal projection of the mounting component 13 on the reference plane may be spaced apart from each other. In such cases, it may be preferable for the fastening component 13 and the hook-shaped component 11 to elastically secure the ear from the outer and posterior directions.

Additionally, the radius of curvature of the edge of the orthogonal projection of the elastic component 112 and the transition piece 114 onto the ear-facing support plane in the away direction from the battery portion 113, from the connecting component 12 to the hook-shaped component 11, may first gradually increase and then gradually decrease. Gradually increasing the radius of curvature of the edge can cause the hook-shaped component 11 to conform to the contour of the back of the ear. Additionally, gradually decreasing the radius of curvature of the edge can increase the degree of bending of the hook-shaped component 11 proximal to the end of the battery portion 113, so that the battery portion 113 can move closer to the fastening component 13, which makes it easier for the hook-shaped component 11 to engage the back side of the ear for enlargement. stability when wearing. Additionally, the radius of curvature of the edge may gradually increase and then gradually decrease continuously, or first gradually increase and then decrease gradually in steps, or combine the two methods mentioned above. For example, an edge may contain multiple regions. Each portion may have a radius of curvature, and in the direction from the connecting component 12 to the battery portion 113, the radii of curvature of the plurality of portions may first gradually increase and then gradually decrease, which may also be referred to as a step change. To improve wearing stability, the portion with the largest radius of curvature among the plurality of portions may be partially superimposed on the orthogonal projection of the fastening component 13 on the reference plane.

Just by way of example, the edge of the orthogonal projection of the elastic component 112 or transition piece 114 onto the reference plane in the ear direction may have a first portion (labeled 11A). The starting point of the first portion (designated CP3) may be a connection point between the elastic component 112 and the connecting component 12, and the ending point (eg, CP1) may be the highest point of the elastic component along the height direction in the wearing state. The radius of curvature of the first section can be within 8-10 mm. The starting point of the first portion may coincide with the position of the second point or be further from the connecting component 12 than the second point, which may be illustrated in the following description. Additionally, the edge of the elastic component 112 or the transition piece 114 may also have a second portion (designated 11B). The starting point of the second segment may be the ending point of the first segment. The distance between the end point of the second portion (designated as CP4) and the highest point in the length direction may be in the range of 8-11 mm, and the distance between the end point of the second portion and the highest point in the height direction may be in the range of 7-10 mm. The radius of curvature of the second section can be within 9-12 mm. Additionally, the edge of the elastic component 112 or the transition piece 114 may also have a third portion (denoted 11C). The starting point of the third section may be the end of the second section. The distance between the end point of the third portion (designated as CP5) in the length direction and the highest point may be in the range of 9-12 mm, and the distance between the end point of the third portion and the highest point in the height direction may be in the range of 19-21 mm. The radius of curvature of the third section can be in the range of 29-36 mm. Additionally, the edge of the elastic component 112 or the transition piece 114 may also have a fourth portion (denoted 11D). The starting point of the fourth section may be the end of the third section. The distance between the end point of the fourth portion (designated as CP6) in the length direction and the highest point may be in the range of 7-10 mm, and the distance between the end point of the fourth portion and the highest point in the height direction may be in the range of 25-32 mm. The radius of curvature of the fourth section can be in the range of 19-25 mm. Additionally, the edge of the elastic component 112 or the transition piece 114 may also have a fifth portion (denoted 11E). The starting point of the fifth section may be the end of the fourth section. The distance between the end point of the fifth section (designated as CP7) and the highest point in the length direction may be less than or equal to 2 mm, and the distance between the end point of the fifth section and the highest point in the height direction may be in the range of 30-38 mm. The radius of curvature of the fifth section can be in the range of 9-13 mm. The fifth section may be configured to lower the profile and the radius of curvature of the lower profile may also be smaller than the radius of curvature of the fourth section.

It should be noted that the end point of the second portion, that is, the starting point of the third portion, may be the intersection point of the orthogonal projection of the elastic component 112 on the reference plane and the upper edge of the fastening component 13. Likewise, the end point of the third portion, that is, the starting point of the fourth portion, may be another intersection point between the orthogonal projection of the elastic component 112 on the reference plane and the lower edge of the fastening component 13. In such cases, the orthogonal projection of the third portion onto the reference plane may completely fall on the fastening component 13. In fig. 42 is a schematic diagram of an ear-facing earpiece design corresponding to some embodiments of the present disclosure. Next, as shown in FIG. 42, the boundary between the elastic component 112 and the transition piece 114 may be located in the fourth portion. Accordingly, the starting point of the portion of the hook-shaped component 11 close to the connecting component 12 may be the boundary between the hook-shaped component 11 and the connecting component 12. The end point of the portion of the hook-shaped component 11 close to the connecting component 12 may be another intersection point between the orthogonal projection of the elastic component 112 on the reference plane and the lower edge of the fastening component 13.

In fig. 33 is a schematic exploded view of an earphone structure corresponding to some embodiments of the present disclosure. As shown in FIG. 33, the hook-shaped component 11 may include an elastic metal wire 115, a battery compartment 1161, and a wire 117. One end of the elastic metal wire 115 may be connected to the connection component 12, and the other end may be connected to the battery compartment 1161. The wire 117 may extend from the battery compartment 1161 to the connecting component 12 and to the fastening component 13 together with the elastic metal wire 115. The elastic metal wire 115 can cause the hook-shaped component 11 to have a certain elastic deformation ability. The battery compartment 1161 may be used to at least accommodate the battery 16. The wire 117 may be used to at least make an electrical connection between the battery compartment 1161 and the electronic components in the mounting component 13. Additionally, the hook-shaped component 11 may also include a resilient coating 118 such as silica gel. The resilient coating 118 may cover at least the resilient metal wire 115 and the wire 117 to improve appearance and wearing comfort. The cross-sectional area of the battery compartment 1161 may be greater than the cross-sectional area of the elastic component 112 formed by the elastic metal wire 115 and the elastic coating 118, preferably larger than the sum of the cross-sectional areas of the elastic metal wire 115, the wire 117, and the elastic coating 118.

Additionally, the hook-shaped component 11 may also include a transition member 1162 coupled to the resilient metal wire 115 such that the resilient metal wire 115 can be coupled to the battery compartment 1161 via the transition member 1162. For example, the transition member 1162 and the resilient metal wire 115 may be formed through a metal insert molding process. Battery compartment 1161 may be located in a cylindrical, open-ended structure to facilitate installation of components such as battery 16. Adapter 1162 may be secured by an open-end fastener to battery compartment 1161. In other embodiments, adapter 1162 and battery compartment 1161 may be formed together. The end of the battery compartment 1161 farthest from the adapter element 1162 may be positioned open and sealed with a protective panel. The cross-sectional area of the transition member 1162 may gradually increase in a direction along the length of the hook-shaped component 11 and further away from the connecting component 12. Accordingly, the resilient cover 118 may also cover the transition member 1162. A low profile may be formed on the transition member 1162 and appear through the resilient cover 118. In other words, the transition element 1162 may be configured to lower a profile corresponding to the rear contour of the ear on the side facing the ear. On a reference plane along the central axis of the battery compartment 1161, the radius of curvature of the profile drop may be less than the radius of curvature of the other side of the adapter 1162 facing away from the ear. Thus, the degree of curvature of the reduction profile can be greater so that the transition piece 114 can avoid a bulge on the rear side of the ear.

Based on the above related description, as shown in FIG. 42, for the hook-shaped component 11, the elastic component 112 may correspond to a portion of the elastic metal wire 115 facing the connecting component 12 and the transition member 1162 and comprise primarily an elastic coating 118, an elastic metal wire 115, and a wire 117 coated with an elastic coating 118 The battery portion 113 may correspond to the battery compartment 1161 and mainly comprise the battery compartment 1161 and the battery 16 therein. The adapter piece 114 may correspond to the adapter member 1162 and comprise primarily an elastic coating 118 and a transition member 1162 coated with the elastic coating 118. In other words, the length of the elastic component 112 may be the length of the portion of the elastic metal wire 115 facing away from the connecting component 12 and the adapter element 1162 and covered with an elastic coating 118.

Additionally, the earphone 10 may also include processing circuitry and a detection element 1163 connected to the processing circuitry. The detection element 1163 can be used to detect whether the hook-shaped component 11 is suspended between the back of the ear and the head. The processing circuit may be used to determine whether the earphone 10 is in a wearing state according to the detection result of the detection element 1163. The processing circuitry may be integrated on the system board 15. The detection element 1163 may be a sensor element located on a hook-shaped component 11 (eg, adapter element 1162 or battery compartment 1161) facing the ear. The sensor element may include a capacitive sensor, an inductive sensor, a resistance sensor, or the like. or any combination thereof. Just by way of example, detection element 1163 may be a capacitive sensing element and may be located in the lower profile of transition element 1162.

In some application scenarios, when the detection element 1163 detects that the earphone 10 is in a wearing state, the processing circuitry may generate a first control signal to control the earphone 10 to switch to a playback state. When the detection element 1163 does not detect that the earphone 10 is in a wearing state, the processing circuit may generate a second control signal for controlling the earphone 10 to switch to a pause state. In such cases, not only can the power supply of the earphone 10 be saved, but also the interactivity of the earphone 10 can be improved.

In other application scenarios, earphone 10 may include a first earphone and a second earphone that are arranged in pairs and connected by communications means. For example, the first earphone and the second earphone may be worn on the user's left and right ears, respectively, and the first earphone or the second earphone may each be configured with a detection element 1163. The processing circuit may determine and select one of the first earphone and the second earphone as the main earphone, which is connected by means of communication with an audio source device (such as a mobile phone, tablet, smart watch, etc.) according to the detection results of the detection element 1163 in the first earphone and the second earphone. When the user uses two headphones at the same time, one of the headphones can be selected as the main headphone, which will be communicatively connected to the audio source device according to a predetermined rule, and the other can be selected as the auxiliary earphone, which will be communicatively connected to the main earphone. When the user uses only one of these two headphones, the used earphone can be considered as the main earphone.

As shown in FIG. 30 and 32, the ear-facing side of the attachment component 13 may comprise a first region 13A and a second region 13B. The second region 13B may be further away from the connecting component 12 than the first region 13A. That is, the second region 13B may be located at the free end of the fastening component 13 farthest from the connecting component 12. Based on the above description, an orthogonal projection of the section (for example, the elastic component 112) of the hook-shaped component 11 proximal to the connecting component 12 along the thickness direction described above may partially overlap the second region 13B. Additionally, the first region 13A may be configured with a resonator hole 1311. The second region 13B may be convex in the ear direction compared to the first region 13A and used to contact the ear, thereby allowing the resonator hole 1311 to be positioned at a distance from the ear when worn. . In short, the free end of the fastening component 13 may be configured in the form of a convex hull structure. Since the center portion 14 can generate sound transmitted to the ear through the sound hole 1311, the convex shell structure can prevent the ear from blocking the sound hole 1311 and cause the sound generated by the center portion 14 to be attenuated or even not output at all. Just by way of example, the maximum protrusion height of the second region 13B relative to the first region 13A in the thickness direction may be greater than or equal to 1 mm, and a smooth transition may be made between the two regions. It should be noted that if the ear-distance arrangement in the wearing state exists only for the sound hole 1311, the second region 13B protruding toward the ear compared with the first region 13A may also be another region of the attachment component 13, such as the region between the sound hole hole 1311 and the connecting component 12. Additionally, since the ear cavity and pinna have a certain depth and are connected to the ear hole, the orthogonal projection of the sound hole 1311 on the ear along the thickness direction can at least partially fall into the ear cavity and/or ear sink. Just as an example, the attachment component 13 may be located on the side of the ear canal near the top of the user's head and in contact with the antihelix. An orthogonal projection of the sound hole 1311 onto the ear along the thickness direction may at least partially fall on the pinna.

In fig. 47 is a schematic cross-sectional view of an earphone corresponding to some embodiments of the present disclosure. Additionally, as shown in FIG. 30 and 47, the mounting component 13 may form an outer cavity 200 and a rear cavity 300 of the earphone 10 on opposite sides of the center portion 14, respectively. The sound hole 1311 may be in communication with the external cavity 200 and output sound to the ear. The mounting component 13 may also be provided with a pressure relief hole 1312 corresponding to the rear cavity 300. The pressure relief hole 1312 may be located further from the ear canal than the resonator hole 1311. The pressure relief hole 1312 may allow air to freely enter and exit the rear cavity 300. , so that the change in air pressure in the outer cavity 200 is not blocked as much as possible by the rear cavity 300, thereby improving the sound quality for the sound output to the ear through the sound hole 1311. Moreover, since the steps of outputting sound to and from the earphone 10 through the resonator hole 1311 and the pressure relief hole 1312 are opposite, the stages can be inverted and mutually canceled in the far field from the ear, that is, an “acoustic dipole” can be formed to reduce sound leakage. The angle between the line between the center of the pressure relief hole 1312 and the center of the resonator hole 1313 and the thickness direction may be from 0° to 50°. Preferably, the angle may be between 0° and 40°. Additionally, the mounting component 13 may also be configured with a sound control hole 1313 associated with the rear cavity 300. The sound control hole 1313 can be used to destroy a high pressure region of the sound field in the rear cavity 300, so that the standing wavelength in the rear cavity 300 can be shortened. , thereby increasing the resonant frequency of the sound output outside of the earphone 10 through the pressure relief hole 1312, for example, above 4 kHz, to reduce sound leakage. Preferably, the sound control hole 1313 and the pressure relief hole 1312 may be located on opposite sides of the central portion 14, respectively. For example, the sound control hole 1313 and the pressure relief hole 1312 may be positioned opposite each other in the height direction to eliminate as much as possible the high pressure region of the sound field in the rear cavity 300. The open direction of the pressure relief hole 1312 may face the top of the user's head. For example, the angle between the open direction and the vertical axis may be between 0° and 10° to allow the pressure relief hole 1312 to be further from the ear canal than the sound control hole 1313, thereby making it difficult for the user to hear sound output outside the earphone 10 through pressure relief hole 1312, to reduce sound leakage. The pressure relief hole 1312 may have a first center in the length direction. The sound control hole 1313 may have a second center in the length direction, and the second center may be further from the center of the sound hole 1311 in the length direction than the first center so as to maximize the distance between the sound control hole 1313 and the sound hole 1311, thus weakening the suppression due to the antiphase of the sound output outward from the earphone 10 through the sound control hole 1313 and the sound transmitted to the ear through the sound hole 1311. In other words, the orthogonal projection of the sound control hole 1313 in the height direction and the orthogonal projection of the second region 13B in the thickness direction may at least partially overlap each other so that it is as far as possible from the sound hole 1311.

Briefly, when the user wears the earphone 10, he hears mainly the sound transmitted to the ear hole through the sound hole 1311. Other acoustic holes, such as the pressure relief hole 1312 and the sound control hole 1313, can be used mainly for creating a sound quality that is as deep as possible with deep bass and punchy treble. Therefore, the ratio of the size of the outlet end of the pressure relief hole 1312 in the length direction (for example, as indicated by L1 in FIG. 32) to the size of the end of the rear cavity 300 near the pressure relief hole 1312 in the length direction (for example, as indicated by L2 in FIG. 45) can be greater than or equal to 0.9. The size relationships between the dimensions in the thickness direction may be the same or similar. Therefore, the rear cavity 300 can be coupled as much as possible to the output of the earphone 10 to minimize blocking between the rear cavity 300 and the outer cavity 200. In addition, the resonant frequency of the sound output outside the earphone 10 through the pressure relief hole 1312 can be shifted as much as possible. to the high frequency region.

It should be noted that since structural parts such as the center body 131 have a certain thickness, holes such as the resonator hole 1311, the pressure relief hole 1312 or the sound control hole 1313 located on the center body 131 may have a certain depth. Thus, with respect to the housing cavity formed by the center body body 131, the hole described in the present disclosure may have an inlet end located adjacent to the housing cavity and an outlet end remote from the housing cavity. The portion 137 and the connecting holes located on the portion 137 described hereinafter may be similar to the above illustration and will not be repeated here.

As shown in FIG. 30-32, in the natural state and when viewed from the side of the earphone 10 facing the top of the user's head in the wearing state, for example, when viewed along the height direction, the fastening component 13 may be spaced at least from a section of the component 11 in the mold a hook located near the connecting component 12 in the thickness direction, and the connecting component 12 may be arranged in an arc shape and connected between the fastening component 13 and the hook shaped component 11. In such cases, the connecting component 12 may cause the fastening component 13 located on the outer side of the ear and the hook-shaped component 11 located on the back side of the ear to always be spaced from each other at least in the section closest to the connecting component 12 in the thickness direction, so that the earphone 10, when worn, can bypass the upper root of the ear and adjacent tissues, thereby preventing the earphone 10 from excessively pinching the helix near the upper root of the ear, causing discomfort.

Just as an example, the connecting component 12 and the fastening component 13 may be connected along the length direction. At least a portion of the connecting component 12 may extend far from the free end of the fastening component 13 along a length direction and a height direction simultaneously, in a direction from one end connecting the fastening component 13 to the other end connecting the hook-shaped component 11 with a bulge in the face direction the user as a whole, so that the height difference between the hook-shaped component 11 and the fastening component 13 in the height direction can be eliminated through a smooth transition. In some embodiments, at least a portion of the connecting component 12 may also extend further from the free end of the fastening component 13 along a length direction in the direction from one end connecting the fastening component 13 to the other end connecting the hook-shaped component 11. In addition, the connecting component 12 and/or the section of the hook-shaped component 11 located near the connecting component 12 may also extend away from the free end of the fastening component 13 in the thickness direction, so that the fastening component 13 and the section of the hook-shaped component 11 located near the connecting component 12 could be spaced in the thickness direction. In fig. 37 is a schematic diagram of some embodiments of the present disclosure showing an earphone design on the side facing away from the ear. In fig. 38 is a schematic representation of a headphone design according to some embodiments of the present disclosure as viewed from the top of a user's head. In some embodiments, as shown in FIG. 37 and 38, the connecting component 12 may extend further toward the free end of the fastening component 13 along the length direction and extend further from the free end of the fastening component 13 along the height direction at the same time, in the direction from one end connecting the fastening component 13 to the other end connecting component 11 in the shape of a hook. That is, the connecting component 12 can form a structure extending in a circle in three-dimensional space. In fig. 43 is a schematic illustration of a headphone design from the top of a user's head, corresponding to some embodiments of the present disclosure. In other embodiments, as shown in FIG. 42 and 43, the connecting part 12 can only extend away from the free end of the fastening part 13 along the length direction and the height direction simultaneously, in the direction from one end of the fastening connecting part 13 to the other end attaching the hook-shaped component 11. That is, the first half of the structure running in a circle can be formed. The section of the hook-shaped component 11 proximal to the connecting component 12 (for example, the elastic component 112) may continue to extend near the free end of the fastening component 13 along the length direction in the direction away from the connecting component 12 and extend from the free end of the fastening component 13 along the height direction at the same time. That is, a second half of the circular structure may be formed, thereby interacting with the first half of the circular structure to form a circular structure in three-dimensional space. In other embodiments, the circular structure may have only a portion of the first half or a portion of the second half.

In some embodiments, a section of the hook-shaped component 11 proximal to the connection component 12 (eg, elastic component 112), the edge of the connection component 12 or the ear attachment component 13 may be arranged in the shape of an annular arc. In the reference direction which passes through the inflection point of the ring arc (eg CP2) and parallel to the length direction, the minimum width W1 of the ring arc along the thickness direction at a place 3 mm from the ring inflection point can be within 1-5 mm .

In other embodiments, in the thickness direction, the minimum distance between the section (eg, elastic component 112) of the hook-shaped component 11 proximal to the connecting component 12 and the fastening component 13 may be greater than 0 and less than or equal to 5 mm.

In other embodiments, in the thickness direction, the distance W2 between the center of the resonator hole 1311 (denoted as O0) and the section of the hook-shaped component 11 closest to the connecting component 12 (for example, the elastic component 112) may be between 3 mm and 6 mm.

In other embodiments, in the thickness direction, the distance W3 between the second region 13B and the section of the hook-shaped component 11 proximal to the connecting component 12 (eg, the elastic component 112) may be between 1 mm and 5 mm.

In fig. 34 is a schematic exploded view of an earphone structure corresponding to some embodiments of the present disclosure. As shown in FIG. 34 and 32, the fastening component 13 may include a center body 131 coupled to the connection component 12. Structural components such as the center body 14 and the system board 15 may be fixed in the housing space of the center body 131. Just by way of example, the center body 131 may include a first body 1314 and a second body 1315 that are positioned opposite each other in the thickness direction. The first housing 1314 may be positioned closer to the ear than the second housing 1315. In some embodiments, the first housing 1314 and the second housing 1315 may also be positioned opposite each other in the vibration direction of the center portion 14. The vibration direction may be parallel to the thickness direction. Namely, the center portion 14 may be secured to the side of the first housing 1314 facing the second housing 1315 to form an outer cavity 200. The second housing 1315 may be fastened to the first housing 1314 and surround the center portion 14 to form a rear cavity 300. Accordingly, the resonator hole 1311 may be located on the first body 1314, for example, on the ear side of the first body 1314. The pressure relief hole 1312 and the sound control hole 1313 may be located on opposite sides of the second housing 1315, respectively. For example, the pressure relief hole 1312 and the sound control hole 1313 may be located opposite each other in the height direction. Based on the above description, the ratio of the size of the outlet end of the pressure relief hole 1312 in the length direction to the size of the second body 1315 in the length direction may be greater than or equal to 0.55. Preferably, the ratio may be between 0.8 and 1.0, so that the rear cavity 300 communicates as much as possible with the outside of the earphone 10, while taking into account the structural strength of the second housing 1315.

In some embodiments, as shown in FIG. 34, the connection component 12 may include a third body 122 attached to the end of the elastic metal wire 115 away from the battery compartment 1161. For example, the third body 122 and the end of the elastic metal wire 115 may be formed by a metal insert injection molding process. The size of the second housing 1315 or third housing 122 in the length direction may be smaller than that of the first housing 1314. The size of the second housing 1315 may be much larger than the size of the third housing 122. The second housing 1315 may be fastened to the first housing 1314 and is an orthographic view of the second housing 1315 in the thickness direction may partially overlap with the orthogonal projection of the first housing 1314. The third housing 122 may be fastened to a portion of the first housing 1314 located at the periphery of the orthogonal projection of the second body 1315. In short, the third housing 122 may be fastened to one and the same side of the second housing 1315 and the first housing 1314. In addition, a large portion of the first housing 1314 may be used as the housing of the fastening component 13 and a small portion may be used as the housing of the connecting component 12. In a particular embodiment, the ratio of the maximum size of the third housing 122 in the length direction to the size of the second body 1315 in the length direction may be less than or equal to 0.4.

Based on the above-mentioned relevant description, as shown in FIG. 37 and 38, in the natural state and on the side of the earphone 10 facing the top of the user's head in the wearing state, for example, when viewed along the height direction, the first body 1314 and the elastic metal wire 115 may be arranged independently at intervals in the thickness direction. The third body 122 may be arranged in an arc shape and connect the body 1314 and the elastic metal wire 115, thereby allowing the fastening component 13 located on the outer side of the ear and the hook-shaped component 11 located on the back side of the ear to be spaced from each other in the thickness direction at least in the section proximal to the connecting component 12. Additionally, the third body 122 may first extend from the second body 1315 along a length direction and a height direction simultaneously, in a direction from one end connected to the first body 1314 to the other end connected to the elastic metal wire 115, and then extend near the second body 1315 along the length direction and further extend from the second body 1315 along the height direction, thereby eliminating the height difference between the hook-shaped component 11 and the component 13 fastenings in the height direction through a smooth transition. In such cases, the second position point may fall on the connecting component 12 and the starting point of the first section may be further from the connecting component 12 than the second position point. The portion of the first housing 1314 that is used as the housing of the connecting component 12 may have the same or similar tendency to change for the third housing 122. Thus, the connecting component 12 can form a ring structure in three-dimensional space. As shown in FIG. 38, a separation line (referred to as PL1) may be provided between the third body 122 and the first body 1314. The third body 122 and the first body 1314 may be molded separately and then fastened together to solve the problem that the body of the connecting component 12 is difficult to mold due to its ring structure in three-dimensional space, thus increasing the economic efficiency of production and reducing production costs.

In fig. 41 is a schematic exploded view of an earphone structure corresponding to some embodiments of the present disclosure. In some embodiments, in conjunction with FIG. 41, the third body 122 and the first body 1314 can be molded as a whole, and a connecting hole for a push-in connection can also be molded. Additionally, the connection component 12 may also include a connection element 123 for a push-in connection. One end of the plug connection connecting member 123 can be attached to the hook-shaped component 11, and the other end can be inserted and fixed in the plug-in connection hole, thereby realizing a connection between the hook-shaped component 11 and the connecting component 12. Namely , the end of the plug-in connection hole 123 distal from the third housing 122 may be connected (eg, pressed during the molding process of the metal insert) to the other end of the elastic metal wire 115 distal from the battery compartment 1161. Additionally, the connecting component 12 may also include a locking element 124. The push-in connection part 123 inserted into the third body 122 can be locked with the third body 122 by the locking member 124, which is convenient for assembly and increases the reliability of the unit. In some embodiments, the locking element 1224 may be a wedge, shaped like a column or a sheet.

Based on the corresponding description mentioned above, as shown in FIG. 42 and fig. 43, the third body 122 may extend from the second body 1315 along a length direction and a height direction simultaneously in a direction from one end connecting the first body 1314 to the other end connecting the plug-in connector 123. A section of the elastic metal wire 115 facing the push-in connector 123 located proximal to the push-in connector 123 may further extend adjacent the second body 1315 along the length direction and simultaneously exit the second body 1315 along the height direction away from the connector. 123 plug-in connections. Accordingly, the third body 122 may also simultaneously extend from the second body 1315 in the thickness direction. A section of the elastic metal wire 115 facing the plug joint connecting member 123 and located in the vicinity of the plug joint connecting member 123 may continue to extend from the second body 1315 along the thickness direction. In such cases, the position of the second point may fall on the boundary between the hook-shaped component 11 and the connecting component 12, and the starting point of the first section may coincide with the position of the second position point. The part of the first body 1314 that is used as the body of the connection component 12 and the part of the plug-in connection element 123 facing the third body 122 may have the same or similar variation trend for the third body 122. Thus, the connection component 12 may allow only the first half of the ring structure to be formed, and the hook-shaped component 11 may continue to form the second half of the ring structure, thereby interacting to form the ring structure in three-dimensional space. Therefore, as shown in FIG. 42, a separation line (designated PL2) may be provided between the plug-in connection member 123 and the third housing 122 (and/or the first housing 1314). The plug-in connector 123 and the third body 122 (and/or the first body 1314) can be molded separately and then inserted to solve the problem that the body of the connector 12 is difficult to press due to the ring structure in three-dimensional space, thereby improving economic efficiency of production and reducing manufacturing costs.

It should be noted that the bodies of the connecting component 12 and the fastening component 13 can also be separated according to other separation methods. For example, the body of the fastening component 13 may be divided into two bodies with substantially equal orthogonal projection areas along the thickness direction. The body of the connecting component 12 may be divided into two bodies along the inflection point, or may contain only one body, and the other body may be formed by the elastic metal wire 115, and the bodies may be assembled accordingly.

Based on the corresponding description mentioned above, as shown in FIG. 34 and 32, the fastening component 13 may need to be in contact with the outside of the ear, in particular, for the free end of the fastening component 13 it may further be necessary to form a contact point (eg CP0) with the antihelix of the ear. Thus, the ear-facing side of the main body 131 may be configured with a flexible cover structure 132 that at least does not cover the resonator hole 1311. For example, the flexible cover structure 132 may be configured with a through hole corresponding to the resonator hole 1311 The Shore hardness of the flexible cover structure 132 may be less than the Shore hardness of the center body body 131 so that the fastening component 13 can contact the ear through the flexible cover structure 132. That is, the flexible cover structure 132 can be resiliently supported between the main body 131 and ear, thus improving wearing comfort. Additionally, based on the method of dividing and splicing the bodies of the connection component 12 and the fastening component 13, to improve the appearance of the earphone 10, the flexible cover structure 132 can be directly attached to the first body 1314, the third body 122, and the like. through an injection molding process. In some embodiments, flexible cover structure 132 may cover first housing 1314, third housing 122, or the like. connection method by gluing. Since the hook-shaped component 11 may also be formed with an elastic cover 118, the elastic cover 118 and flexible cover structure 132 may also be molded by a single injection molding process or molded separately by two injection molding processes. The materials used in both processes may be the same or different. It should be noted that, without further specification, the present application primarily describes the portion in which the flexible cover structure 132 and the resilient cover 118 contact the user's skin.

In some embodiments, the flexible cover structure 132 may be at least partially located on the side of the fastening component 13 in a direction away from the free end of the connecting component 12 and facing the ear, that is, the second region 13B. Accordingly, the orthogonal projection of the elastic component 112 onto the reference plane (eg, the plane where the YZ is located) and the orthogonal projection of the flexible cover structure 132 onto the reference plane may partially overlap each other. Additionally, the thickness of the flexible cover structure 132 can be designed differently. For example, the flexible cover structure 132 corresponding to the second region 13B may be relatively thick so that the free end of the fastening component 13 can protrude towards the ear and have good flexibility. In some embodiments, just to have the fastening component protrude through the second region 13B in the ear direction compared to the first region 13A, the ear direction side of the first body 1314 may also be designed with a different thickness. Thus, the first body 1314 may also include a first region and a second region to correspond to the first region 13A and the second region 13B on the ear-facing side of the attachment component 13, respectively.

In some embodiments, the side of the flexible cover structure 132 facing the center body 131 may be recessed with blind holes 1321 spaced apart from each other. The blind hole 1321 can be used mainly to provide deformation space for the flexible cover structure 132 to allow the flexible cover structure 132 to experience greater deformation under pressure in a wearing state, thereby further improving wearing comfort. In some embodiments, the number of blind holes 1321 may be large, such as at least two, which may be spaced relative to each other to form the position of the bone to support the structure itself, thus having both elastic deformation and structural strength. In other embodiments, the number of blind holes 1321 may also be only single. In such cases, by controlling the modulus of elasticity, thickness, size of the blind hole 1321 and other parameters of the flexible closure structure 132, the blind hole 1321 can also have elastic deformation and structural strength at the same time. To create a flexible closure structure 132 having blind hole(s) 1321, the main body 131 (e.g., a portion of the first body 1314 corresponding to the second area 13B) may be configured with through hole(s) 13141 corresponding to and associated with the blind hole (s) 1321, respectively. The through hole(s) 13141 may be used to insert a molded base of the flexible closure structure 132. In such cases, the plurality of through holes 13141 may cause the portion of the first body 1314 corresponding to the second area 13B to be arranged in a honeycomb or grid pattern to balance the structural strength of the first body 1314 in the area and support of the flexible closure structure 132. Additionally, the outer side of the first body 1314 may also be configured with projections surrounding the through holes 13141 along the honeycomb or mesh structure. In some embodiments, the projections may be incorporated into the flexible closure structure 132. In some embodiments, the flexible closure structure 132 may be partially integrated into the through holes 13141 to increase the adhesive area of the flexible closure structure 132 between the second region 13B and the first body 1314, thereby increasing thus, adhesion strength. Thus, the first body 1314 may have corresponding through holes 13141 during the molding process, and the molding bases of the flexible cover structure 132 can be inserted through the through holes 13141 after molding is completed. The molding bodies may protrude from the first body 1314 and the maximum height of the protrusion may depend on the actual design requirements of the convex shell. The flexible cover structure 132 can be directly molded onto the first body 1314 through an injection molding process, and then the mold body can be stretched. Accordingly, the fastening component 13 may further include a protective panel 1316 located in the main body 131. For example, the protective panel 1316 may be positioned in a fixed manner on the inside of the first housing 1314 away from the flexible closure structure 132 to seal the through holes 13141, thereby allowing , the first housing 1314 and a protective panel 1316 surrounding the central portion 14 form an outer cavity 200. The protective panel 1316 may be supported by a honeycomb or mesh structure of the first housing 1314.

Just as an example, a first flange 13142 may be located on the inner surface of the wall of the first housing 1314 in a direction away from the flexible closure structure 132. A second flange 13161 may be located on the inner surface of the wall of the protective panel 1316 in a direction away from the flexible closure structure 132. Two ends of the second flange 13161 and the two ends of the first flange 13142 can extend in opposite directions and, accordingly, by splicing form an annular flange. In such cases, the central portion 14 may be supported by the annular flange to form the outer cavity 200. The first body 1314 may be configured with a receiving groove in the second region 13B. The protective panel 1316 may be incorporated into the receiving groove to allow the inner wall surface of the protective panel 1316 to fall away from the inner wall surface of the first housing 1314 away from the flexible closure structure 132, thereby causing the inner cavity surface of the outer cavity 200 to be as flat as possible. Additionally, an adhesive groove may be located on an inner surface of the wall of the first housing 1314 away from the flexible cover structure 132. The adhesive groove may be located at the edge of the receiving groove and surrounded by a plurality of through holes 13141. The protective panel 1316 may be bonded to the first housing 1314 through adhesive in the adhesive groove. groove. Briefly, the first flange 13142 and the adhesive groove may be located on the inside of the first body 1314 away from the flexible closure structure 132, however, the first flange may correspond primarily to the first region 13A, and the adhesive groove may correspond primarily to second area 13B.

It should be noted that in other embodiments, such as where the flexible closure structure 132 does not have through holes 1321 or where the flexible closure structure 132 is molded separately and then bonded (eg, by adhesive) to the main body 131, the first body 1314 may not have through holes 13141 and a corresponding protective panel 1316 may not be provided. In such cases, the first flange 13142 may be a full annular flange and the outer cavity 200 may be formed by supporting and bearing the central portion 14 on the annular flange.

In other embodiments, as shown in FIG. 41, the flexible closure structure 132 may include an inner flex liner 1322 located on the main body 131 and an outer flex liner 1323 covering at least the inner flex liner 1322. The inner flex liner 1322 may be located in the second region 13B. The outer flexible spacer 1323 may cover the inner flexible spacer 1322, the first body 1314, the third body 122, and the like. In such cases, the flexible cover structure 132 may contact the ear through the outer flexible pad 1323. In short, the flexible cover structure 132 may also be configured as a two-layer structure to adjust the thickness and softness of the portion of the flexible cover structure 132 corresponding to the second region 13B. Accordingly, the orthogonal projection of the elastic component 112 on the reference plane (eg, the YZ arrangement plane) and the orthogonal projection of the inner flexible pad 1322 on the reference plane may partially overlap each other. Likewise, the resonator hole 1311 may be located between the inner flex pad 1322 and the connection component 12. Additionally, the inner flex pad 1322 may also protrude towards the ears. Thus, the inner flexible spacer 1322 may protrude from the main body 131 (namely, the first body 1314) to facilitate molding of the flexible cover structure 132 into a convex shell structure.

Just by way of example, blind hole(s) 1321 may be located in the inner flexible spacer 1322 and the function and molding method may be the same or similar to that described above, which is not repeated here. There may be a plurality of blind holes 1321 such that the internal flexible spacer 1322 may have bone locations arranged in a honeycomb or grid pattern, or may have a plurality of spaced bone locations. In other embodiments, the blind hole 1321 may further extend through the internal flexible spacer 1322, that is, through the through hole. Likewise, the spaces between the bone locations, ie, the blind holes 1321, can be used to provide deformation space for the flexible closure structure 132. In some embodiments, the material of the inner flex liner 1322 and outer flex liner 1323 can be zero degree silica gel.

Just by way of example, the Shore hardness of the inner flex liner 1322 may be less than the Shore hardness of the outer flex liner 1323, allowing the portion of the flexible cover structure 132 corresponding to the second region 13B to be softer. The side of the outer flex 1323 facing the main body 131 may be recessed by the blind hole(s) 1321. The inner flex 1322 may be positioned in the blind hole(s) 1321 and contact the outer flex 1323. In other words , blind hole(s) 1321 may be located in the outer flexible spacer 1323 so as to more flexibly accommodate the flexible inner spacer 1322. Specifically, a portion of the first body 1314 corresponding to the second area 13B may be provided with through holes 13141 for inserting molded tenons. outer flex pad 1323. In such cases, the outer flex pad 1323 may be molded on the first body 1314 by an injection molding process, and the molded tenons can be pulled out after the outer flex pad 1323 is molded so that corresponding blind holes can be molded in the outer flex pad 1323 1321, thus forming a placement area. The inner flex 1322 may be placed in the blind hole(s) 1321 through the through hole(s) 13141. That is, the inner flex 1322 can be positioned in the placement area and the through holes 13141 can be sealed with a backing panel 1316. Backing side panels 1316 facing the internal flexible spacer 1322 may be partially integrated into the through hole(s) 13141 to improve the sealing characteristics of the placement area. Additionally, the number of blind holes 1321, which may be one, and the number of through holes 13141 may be the same. In such cases, where the open area of the through holes 13141 is relatively large, the protective panel 1316 may be expanded to partially overlap with the first housing 1314 in the first region 13A to increase the support area of the protective panel 1316 by the first housing 1314. The protective panel 1316 may be is formed with a connection hole 13162 connecting the resonator hole 1311 and the outer cavity 200 so as not to block the resonator hole 1311. In a particular embodiment, the material of the outer flexible pad 1323 may be 30-50 degree silica gel, and the material of the inner flexible pad 1322 may be silica gel with zero degrees, wherein the outer flex 1323 and the inner flex 1322 can be molded into the placement area by an adhesive beading process. In another specific embodiment, the material of the outer flex 1323 may be 30-50 degree silica gel, and the material of the inner flex 1322 may be 0-10 degree silica gel, and the outer flex 1323 and the inner flex 1322 may be preformed into a block, which must be filled in the placement area. In some embodiments, when the inner flex 1322 can withstand the force of the outer flex 1323 during the molding process, the first body 1314 may not be manufactured with a through hole 13141 and a corresponding protective panel 1316 may not be provided.

Based on the detailed description mentioned above, structural components such as the first housing 1314, the outer flexible spacer 1323, the inner flexible spacer 1322, the protective panel 1316, etc., can be molded to form a housing assembly, that is, for simplicity During the assembly process, structural components can be built as modules.

As shown in FIG. 30, the earphone 10 may further include a microphone 125 and a microphone 133 located on the mounting component 13 and/or on the connecting component 12. These two microphones 125 and 133 may be electrically coupled to the system board 15. The distance between the microphone 125 and the microphone 133 in the direction length may be greater than the distance between microphone 125 and microphone 133 in the height direction. The distance between the two microphones 125 and 133 should be as large as possible when the size of the earphone 10 is relatively determined, thereby avoiding interference between the two microphones 125 and 133 and enhancing the sound sensor effect and/or noise reduction effect of the earphone 10. Additionally, the line between the orthogonal projection of the microphone 125 onto the reference plane (eg, the YZ location plane) and the orthogonal projection of the microphone 133 onto the reference plane may pass through the orthogonal projection of the central portion 14 onto the reference plane. In other words, if the orthogonal projection of the center portion 14 onto the reference plane is arranged in a rectangular shape, the two microphones 125 and 133 can be positioned substantially along the diagonal of the center portion 14.

In some embodiments, the microphone 125 may be located on the connection component 12, and the microphone 133 may be located on the free end of the attachment component 13 away from the connection component 12. The microphone 125 may be closer to the user's mouth than the microphone 133 and used primarily way to perceive the user's speech. In some embodiments, earphone 10 may also include processing circuitry that may be integrated into system board 15 and designate microphone 125 as the primary microphone and microphone 133 as the secondary microphone. The sound signal received by the sub microphone can be used to reduce the noise level of the sound signal received by the main microphone, thereby improving the sound perception effect. At least one of the two microphones 125 and 133 may also be used to perform a noise reduction process on the audio output from the earphone 10 to the ear, or only one microphone may be provided for sound perception or noise reduction.

Just as an example, microphone 125 may be located between the third housing 122 and the first housing 1314, and microphone 133 may be located between the second housing 1315 and the first housing 1314. The sides of the third housing 122 and the second housing 1315 are away from the first housing 1314 and may be respectively made with through-holes for microphones to receive sounds.

In other embodiments, the earpiece 10 may also include a stack microphone 134 that is releasably coupled to a free end (i.e., battery portion 113) of a mounting component 13 or a hook-shaped component 11 remote from the connecting component 12. The free end of the stack The microphone 134 may be configured as a microphone 1341 electrically coupled to the system board 15. Compared with the microphone 125 and the microphone 133, the stack microphone 134 may allow the microphone 1341 to be placed closer to the user's mouth, which is advantageous for improving the sound perception effect. In the present disclosure, the detachable connection of the stack microphone 134 and the mounting component 13 can be taken as an example for illustration. For example, the main shaft 1342 of the stack microphone 134 and the second body 1315 may be releasably connected via a fastener, magnet, or the like. As another example, the main rod 1342 and the second body 1315 may be releasably connected via a C-type insert to reduce the mounting length between the microphone 1341 and the system board 15.

Additionally, in addition to microphone 1341 on stack microphone 134, earpiece 10 may also be configured with other microphones, such as microphone 125 and/or microphone 133. Processing circuitry may use microphone 1341 as the primary microphone when stack microphone 134 is coupled to a component 13 mount, and use at least one of the microphones 133 or 125 as an auxiliary microphone. The audio signal received by the sub microphone can be used to cancel the noise signal received by the main microphone, thereby enhancing the sound perception effect. Accordingly, the processing circuitry may switch the microphone 133 and the microphone 125 to an on state when the stack microphone 134 is separated from the mounting component 13. One of the microphones 133 and 125 may be used as a primary microphone, and the other may be used as a secondary microphone. In some embodiments, the processing circuitry may also switch at least one of the microphones 133 or 125 to an inoperative state when the stack microphone 134 is coupled to the mounting component 13 to save power while still addressing audio perception and/or noise reduction.

As shown in FIG. 30 and 31, the earphone 10 may further include a first charging electrode 126 located in the mounting component 13 or connecting component 12, and a second charging electrode 1164 located in the hook-shaped component 11. The first charging electrode 126 or the second charging electrode 1164 may be used as a positive charging electrode, and the other may be used as a negative charging electrode. In the present disclosure, for purposes of illustration, the first charging electrode 126 may be used as a positive charging electrode and the second charging electrode 1164 may be used as a negative charging electrode. In such cases, the earphone 10 may be charged by two charging electrodes. In addition, the shortest distance between two charging electrodes can be greatly increased, which helps prevent short circuits between charging electrodes caused by sweat, water droplets, dust, etc. In some embodiments, if the short circuit prevention conditions are satisfied, the two charging electrodes may also be arranged in the hook-shaped component 11, the connecting component 12, or the fastening component 13. Additionally, two charging electrodes can be installed so as to be invisible when worn. For example, both charging electrodes may be facing the user's skin to improve the appearance of the earphone 10.

Just as an example, the first charging electrode 126 may be located on the connection component 12, and the second charging electrode 1164 may be located in the battery portion 116. Namely, the first charging electrode 126 may be at least partially located on the periphery of the second housing 1315 , for example, between the third housing 122 and the first housing 1314. Accordingly, the second charging electrode 1164 may be located in the battery compartment 1161, for example, at the base of the battery compartment 1161, away from the open end. The first charging electrode 126 may be arranged in a column shape and the second charging electrode 1164 may be arranged in a strip shape. The length direction of the second charging electrode 1164 may be along the circumferential direction of the battery compartment 1161. Additionally, the first housing 1314 and the battery compartment 1161 may be respectively formed with through holes that allow the charging electrodes to be seen, so that the charging electrodes can contact the output electrodes on the charger . Compared with the column-shaped charging electrode, the strip-shaped charging electrode can have a larger contact area with the output electrode, which can improve the reliability of the charging electrode.

It should be noted that the connection component 12 may be provided with a plurality of first charging electrodes 126 spaced apart. For example, connection component 12 may have two first charging electrodes 126 such that if one of the first charging electrodes 126 fails, the other may still be available. Additionally, a magnetic adsorption element, such as a magnet, may also be located near each of the two charging electrodes to allow the earphone 10 to have good contact with the output electrode(s) on the charger through magnetic adsorption. For the charger, the position of the output electrode(s) can be adjusted by changing the position of the charging electrode(s) on the earphone 10.

In fig. 35 is a schematic exploded view of an earphone structure corresponding to some embodiments of the present disclosure. As shown in FIG. 35, since the second housing 1315 is further away from the ears than the first housing 1314, the second housing 1315 may be configured with interactive components, such as a physical button, display, touch circuit board, and the like, to facilitate user interaction with the earpiece 10.

Just as an example, the second housing 1315 may include a bottom wall 13151 positioned opposite the first housing 1314 and a side wall 13152 coupled to the bottom wall 13151. The side wall 13152 may extend toward the first housing 1314. The side of the bottom wall 13151 facing the first housing 1314 may be configured with a flexible touch circuit board 135 electrically coupled to the system board 15. Flexible touch circuit board 135 may include a capacitive touch circuit board, a resistive touch circuit board, a pressure sensitive touch circuit board, and the like. ., which is not limited here. In such cases, interaction with the earphone 10 can be realized and there is no need to provide an additional through-hole on the base body 131, thereby improving the waterproof and dustproof performance. Specifically, the flexible touch circuit board 135 may include a touch portion 1351 for receiving touch operations and an electrical connection portion 1352 for connection to the system board 15. For example, the flexible touch circuit board 135 may be fastened to the system board 15 via a BTB type connector. The ratio of the area of the touch portion 1351 to the area of the side wall 13151 may be greater than or equal to 70%. Based on the above description, the side of the side wall 13152 proximal to the third housing 122 may be opened to facilitate merging of the second housing 1315 and the third housing 122. A pressure relief hole 1312 and a sound control hole 1313 may be located on the side wall 13152 and specifically are located on opposite sides of the open end, respectively.

Additionally, the bottom wall 13151 may be formed with a receiving groove 13153 and the touch portion 1351 may be attached to the bottom of the receiving groove 13153. In such cases, the second body 1315 may be equivalent to partial thinning to increase the sensitivity of the flexible touch circuit board 135. In some embodiments, the system the board 15 may also be coupled to the second housing 1315. The flexible touch circuit board 135 may be pressed onto the bottom wall 13151 through the resilient keypad 1353. In this manner, the touch portion 1351 may be in close contact with the bottom wall 13151 and the touch portion 1351 may be protected from damage. The depth of the receiving groove 13153 may be greater than or equal to the thickness of the touch portion 1351 and less than the sum of the thicknesses of the touch portion 1351 and the resilient keypad 1353 to enhance the press-and-hold effect.

In some embodiments, the bottom wall 13151 may be configured with a plurality of hot fusion pillars 13154 located at the periphery of the receiving groove 13153 and extending toward the system board 15. For example, the number of hot fusion pillars may be three. The connection line between the orthogonal projections of at least two of the plurality of hot fusion pads 13154 on the bottom wall 13151 may pass through the orthogonal projection of the touch portion 1351 on the bottom wall 13151. Accordingly, the system board 15 can be configured with a connection hole corresponding to each hot fusion pad 13154 to allow the system board 15 to be connected and secured to the hot fusion post 13154 through the connection hole. In short, if the touch portion 1351 is arranged in a rectangular shape, at least the hot fuse pads 13154 may be positioned substantially along the diagonal of the touch portion to improve uniformity of force distribution across the system board 15. In other embodiments, the hot fuse pad 13154 may also be replaced by a screw, fastener, etc., but is not limited to this.

Based on the above-mentioned description, the microphone 133 can be directly located on the side of the motherboard 15, away from the bottom wall 13151, through an SMT process. Accordingly, the bottom wall 13151 can be configured with a flange 13155 located on the periphery of the receiving groove 13153. The flange 13155 can be expanded. towards the system board 15 and have an audio transmission hole in communication with the external environment of the earphone 10. The system board 15 may push against the flange 13155 to allow the microphone 133 to receive audio signals through the audio transmission hole. In some embodiments, the silicone sleeve 13156 may be cuffed to the flange 13155 to allow the system board 15 to be resiliently supported on the flange 13155 via the silicone sleeve 13156. As a result, not only can the sealing of the sound path to the microphone 133 be increased, but also the The uniformity of force distribution on the system board will be improved 15.

In some embodiments, a directional metal antenna may be located on the second housing 1315 to serve as a communication antenna of the earpiece 10. Accordingly, the bottom wall 13151 may be configured to have a contact point 13157 with an antenna located on the periphery of the receiving groove 13153 and be electrically coupled with a directional metal antenna. The system board 15 may be configured with a metal resilient sheet for resilient contact with the antenna contact point 13157. In short, the system board 15 can be connected to the antenna contact point 13157 through a metal elastic sheet to prevent unnecessary welding, thereby reducing the difficulty of assembly and saving the internal space of the main body 131.

As stated above, the connection between the system board 15 and the second body 1315 can not only realize the fastening of the system board 15, but also realize pressing and holding on the flexible touch circuit board 135, sealing the sound path of the microphone 133, and electrical connection between the system board 15 and directional metal antenna. In this way, several goals can be achieved at once.

Based on the above description, as shown in FIG. 35 and 41, electronic components located in the hook-shaped component 11 can be electrically coupled to the system board 15 via wire 117. Since the electronic components located in the connection component 12 are relatively close to the system board 15, the electronic components can electrically connect to the system board 15 directly through the pins of the electronic components. Wire 117 may be located in a plurality of bundles, which may include a wire from a positive terminal and a wire from a negative terminal of battery 16, a signal line and a shield line from detection element 1163, and a negative terminal wire 1164 of the second charging electrode. In some embodiments, the shield wire of detection element 1163 and the second charging electrode wire 1164 may be the same wire to simplify wiring. Additionally, since the size of the system board 15 is limited and there are many integrated electronic components on the system board 15, a wire 117 or other lead may be welded to the flexible circuit board 136 first and then fastened and connected to the system board 15 through the flexible circuit board 136. which is preferable to increase the size of each contact and increase the gap between each two contacts, thereby reducing the difficulty of welding and increasing the reliability of welding.

Just as an example, flexible circuit board 136 may include at least a first connection area 1361 for electrical connection to battery 16 and a second connection area 1362 for electrical connection to system board 15. The second connection area 1362 may be located along a main surface of system board 15. to facilitate connection of the flexible circuit board 136 and the system board 15 with a fastener. Additionally, the first connection area 1361 may be curved toward the system board 15 relative to the second connection area 1362 and may be configured with a plurality of pads. That is, welding can be performed on the side of the motherboard 15. As a result, since there is no interference from electronic components between components on the main surface of the motherboard 15, the difficulty of welding can be reduced. In addition, due to the small thickness, the flexible circuit board 136 can be partially curved towards the system board 15, which can also save the internal space of the main body 131. Based on the above description, a plurality of pads located in the first connection area 1361 may include a first pad and a second pad respectively used for welding a positive electrode terminal and a negative electrode terminal of the battery 16. The plurality of pads located in the first connection area 1361 may further include a third pad and a fourth pad respectively used for welding a positive terminal electrode and the negative electrode terminal of the charging electrode. The plurality of pads located in the first connection area 1361 may further include a fifth pad and a sixth pad respectively used for welding the signal line and the shield line of the detection element 1163. Since the shield wire of the detection element 1163 and the terminal of the second charging electrode 1164 may be the same terminal, the fourth pad or the sixth pad may be omitted, which is advantageous to increase the size of the other pads and the spacing between each two pads.

Based on the above description, since the microphone 125 may be located on the connection component 12 to be closer to the system board 15, the flexible circuit board 136 may be further expanded to the connection component 12. The flexible circuit board 136 may further include a third connection area 1363, connected to the first connection area 1361. The third connection area 1363 may be curved away from the system board 15 from the first connection area 1361 so that the third connection area 1363 can be attached to the first housing 1314 and/or to the third housing 122. The microphone 125 may be located in the third 1363 connection areas via the SMT process. The first connection area 1361 and the third connection area 1363, respectively, may be perpendicular to the main surface of the system board 15. The second connection area 1362 may be parallel to the main surface of the system board 15.

Unlike the first connection area 1361, the second connection area 1362 may be fastened to the system board 15 via a BTB type connector. Flexible printed circuit board 136 may further include a transition region 1364 of connections of a first connection region 1361 and a second connection region 1362. The transition area 1364 and the second connection area 1362 may be located on the same side of the system board 15. The length of the transition area 1364 may be greater than the minimum distance between the first connection area 1361 and the second connection area 1362 so that the first connection area 1361 can be fastened to the system board 15. Just as an example, the transition region 1364 may be arranged in a multi-segment curved structure and located along the main surface of the system board 15.

As shown in FIG. 35, the central portion 14 may include a magnetic circuit system 141 and a coil 142. The coil 142 may extend into a magnetic gap of the magnetic circuit system 141 and move in a magnetic field generated by the magnetic circuit system 141 in the energized state. The magnetic circuit system 141 may include structural components such as a permanent magnet, a yoke, a bracket, and the like. The relationship of the particular design and connections of the magnetic circuit system 141 may be well known to those skilled in the art and will not be repeated here. Additionally, if the central portion 14 is applied to a bone conduction earphone, the coil 142 may be positioned to drive movement of the vibration plate. If the center portion 14 is applied to an air conduction earphone, the coil 142 may be positioned to drive movement of the diaphragm. In some embodiments, the coil 142 may also be configured to simultaneously drive the vibration plate and the diaphragm. In the present disclosure, the diaphragm movement driving coil 142 may be taken as an example for illustration. The central portion 14 may further include a diaphragm 143 coupled between the coil 142 and the magnetic circuit system 141. The diaphragm 143 may, during the vibration process, generate sound, which may be transmitted to the ear through the sound hole 1311.

Additionally, the central portion 14 may also include a metal resilient sheet 144 attached at the periphery of the magnetic circuit system 141. The metal resilient sheet 144 may be electrically connected to the coil 142. The central portion 14 may elastically press the system board 15 through the metal resilient sheet 144 so that the coil 142 can be electrically connected to a contact point on the system board 15. Thus, replacing the weld wires with by appropriate technology onto the metal elastic sheet 144, welding can be avoided, thereby reducing difficulty in assembly. In addition, there is no need to reserve space for welding, thereby saving the internal space of the center body body 131. The metal elastic sheets 144 may be numbered to two, and may be used as a positive terminal and a negative terminal of the coil 142, respectively.

In fig. 40 is a schematic diagram of a system board-facing central portion structure corresponding to some embodiments of the present disclosure. Just as an example, as shown in FIG. 40, the metal resilient sheet 144 may include a fastener 1441 and a resilient contact member 1442 connected to one end of the fastener 1441. The fastener 1441 may be connected to a magnetic circuit system 141. The elastic contact piece 1442 may extend in the direction of the fastener 1441 from the magnetic circuit system 141. Briefly, a portion of the metal resilient sheet 144 for electrical connection to a contact point on the system board 15 may protrude from the magnetic circuit system 141. Additionally, the metal resilient sheet 144 may also include a limit member 1443 attached to the other end of the fastener 1441. The limit member 1443 and the elastic contact member 1442 may extend in the same direction. The elastic contact piece 1442 may be further bent and extended toward the limiting member 1443, and the free end of the elastic contact member 1442 may be inserted into the limit groove of the limiting member 1443 so that the elastic contact member 1442 can store elastic potential energy in advance, thereby improving the quality contact between the metal resilient sheet 144 and the contact point on the system board 15. In such cases, the height of the middle portion of the resilient contact piece 1442 relative to the fastener 1441 may be greater than the height of the free end of the resilient contact piece 1442 relative to the fastener 1441 to facilitate contact with the contact point on the system board 15.

Based on the above description, the magnetic circuit system 141 may be connected to the side of the first housing 1314 facing the second housing 1315. The system board 15 may be connected to the side of the second housing 1315 facing the first housing 1314. The second housing 1315 may be secured with a fastener. with the first body 1314 so that the central part 14 can elastically press the metal elastic sheet 144 on the system board 15, which is simple and reliable and has high assembly efficiency. Each side of the opposing sides of the magnetic circuit system 141 may be provided with a metal elastic sheet 144 to enhance the stability of the central portion 14 clamped by the second housing 1315 and the system board 15 together with the first housing 1314. Accordingly, the diaphragm 143 may be covered by the first housing 1314 so that form an outer cavity 200. For example, the magnetic circuit system 141 may be supported and secured on an annular flange formed by splicing the second flange 13161 and the first flange 13142 mentioned above. The magnetic circuit system 141 may be configured with a through hole connecting the rear cavity 300 and the side of the diaphragm 143 facing away from the outer cavity 200. In other words, the central portion 14 (namely, the diaphragm 143) may share the housing cavity formed by the housing 131 the central part, the outer cavity 200 and the rear cavity 300, located opposite each other. An orthogonal projection of the resonator hole 1311 along the vibration direction of the center portion 14 may be at least partially projected onto the diaphragm 143. Additionally, the system board 15 and the center portion 14 may be laid in the thickness direction, and the center portion 14 may be positioned closer to the ear than system board 15 to avoid placing a through hole connecting the side of the diaphragm 143 away from the rear cavity 300 and the outer cavity 200 on the system board 15, thereby simplifying the structure. The ratio of the overlap area between the orthogonal projection of the central portion 14 onto the reference plane (e.g., onto the YZ placement plane) and the orthogonal projection of the system board 15 onto the reference plane to the larger of the projection areas of the system board 15 onto the reference plane or the area of the orthogonal projection of the central portion 14 onto the reference plane can be in the range of 0.8-1. For example, the area of the orthogonal projection of the central portion 14 onto the reference plane may be substantially equal to the area of the orthogonal projection of the system board 15 onto the reference plane. Namely, the ratio of the absolute value of the difference between the size of the central portion 14 in the length direction and the size of the motherboard 15 in the length direction to the larger of the size of the motherboard 15 in the length direction and the size of the central portion 14 in the length direction can be in the range of 0 to 0.2 . The aspect ratio between the central portion 14 and the system board 15 in the height direction may be the same or close to the aspect ratio in the length direction. Thus, as long as the volume of the accommodation cavity formed by the center portion body 131 is constant, the center portion 14 can be made as large as possible, which is advantageous for increasing the volume of the earphone 10 and expanding the frequency response range of the earphone 10.

It should be noted that, as shown in FIG. 40, although the central portion 14 has a major axis direction (denoted Y1) and a minor axis direction (denoted Z1) orthogonal to each other and perpendicular to the vibration direction of the central portion 14 (denoted X1), for ease of description, the vibration direction, major axis direction and The minor axis in the embodiment presented in the present disclosure may be respectively parallel to the thickness direction, the major axis direction and the above-mentioned height direction. In other embodiments, an angle may be allowed between the vibration direction and the thickness direction, or between the major axis direction of the central portion 14 and the major axis direction mentioned above, or between the minor axis direction of the central portion 14 and the height direction. Additionally, the size of the central portion 14 in the major axis direction may be greater than or equal to the size of the central portion 14 in the minor axis direction. Just by way of example, the orthogonal projection of the central portion 14 onto a reference plane perpendicular to the direction of vibration may be rectangular in shape. The major axis direction may be the direction of the long side of the rectangle, and the minor axis direction may be the direction of the short side of the rectangle.

The inventor(s) of the present disclosure, in long-term study, discovered that when the motherboard 15 is located on the side of the central part 14 in the direction from the outer cavity 200, a large number of electronic components with different sizes and shapes located on the motherboard 15 can affect the quality sound of earphone 10. In FIG. 36 is a schematic cross-sectional view of an earphone in accordance with some embodiments of the present disclosure. In fig. 46 is a schematic cross-sectional view of an earphone in accordance with some embodiments of the present disclosure. Thus, as shown in FIG. 36 and 46, the fastening component 13 may further include a portion 137 located in the center body 131. The portion 137 may be used primarily to separate the central portion 14 from the system board 15 and may be closed by the central portion 14 to form a rear cavity 300, that is, an independent sound cavity. Specifically, portion 137 may be located between the magnetic circuit system 141 and the system board 15 and may be covered by the magnetic circuit system 141 to form the rear cavity 300. In other embodiments, the system board 15 may be coated to make the side of the system board as flat as possible. 15 facing the central part 14.

Just by way of example, portion 137 may be attached to center portion 14, that is, portion 137 and center portion 14 may be built in modules to facilitate assembly. In fig. 39 is a schematic exploded view of the design of an earphone according to some embodiments of the present disclosure. In fig. 44 is a schematic exploded view of the design of an earphone according to some embodiments of the present disclosure. Specifically, as shown in FIG. 39 and 44, portion 137 may include a bottom wall 1371 and a side wall 1372 connected to the bottom wall 1371. The bottom wall 1371 may be separate from the magnetic circuit system 141. A side wall 1372 may extend toward the central portion 14 and connect to the central portion 14 (namely, the magnetic circuit system 141) to allow the portion 137 to be covered by the central portion 14 to form a rear cavity 300. The side of the portion 137 facing the magnetic circuit system 141 , may further be provided with an adhesive groove 1373 and a positioning post 1374 corresponding to the magnetic circuit system 141 to facilitate precise assembly of the portion 137 with the central portion 14. Accordingly, the metal elastic sheet 144 may be located at the periphery of the portion 137.

Based on the above-mentioned relevant description, the side wall 1372 may also be configured with a connection hole that allows the rear cavity 300 to be connected to the external environment of the earphone 10, for example, the first connection hole 1375 connecting the pressure relief hole 1312 and the rear cavity 300, the second connection a hole 1376 connecting the sound control hole 1313 and the rear cavity 300, etc. The center portion portion 137 and body 131 may also elastically support a sealing member that surrounds the coupling hole to seal the sound path between the rear cavity 300 and the external environment of the earphone 10.

In the present disclosure, structural components such as the center body 131, the center body 14, etc. may generally be arranged in a cubic structure or a cylindrical structure, which is not limited here. In the present disclosure, the central portion 14 located in the cubic structure may be taken as an example for illustration. The size of the portion 137 in the length direction may be greater than or equal to the size of the portion 137 in the height direction. As shown in FIG. 39, side wall 1372 may include a first side wall 13721 and a third side wall 13723 spaced apart from each other in the length direction, and a second side wall 13722 and a fourth side wall 13724 spaced apart from each other in the height direction. Additionally, a second side wall 13722 or a fourth side wall 13724 may be provided with a first connection hole 1375, and others may be provided with a second connection hole 1376. Based on the above related description, the first connection hole 1375 may be located in the second side wall 13722 , and a second connection hole 1376 may be located in the fourth side wall 13724. In FIG. 45 is a schematic diagram of a partition structure facing the side of the center portion corresponding to some embodiments of the present disclosure. It should be noted that as shown in FIG. 44 and 45, the second side wall 13722 may also be omitted and the first connection hole 1375 may be directly covered by the bottom wall 1371, the first side wall 13721 and the third side wall 13723, which may be described by way of example in the following descriptions.

Additionally, the third side wall 13723 may be further from the resonator hole 1311 than the first side wall 13721, that is, further from the connection component 12 and closer to the free end of the attachment component 13. The size of the first tie hole 1375 in the length direction may be larger than the size of the second tie hole 1376 in the length direction, and the dimensions of the first tie hole 1375 and the second tie hole 1376 in the thickness direction can be the same to control the actual area of the effective tie region between the rear cavity 300 and the external environment of the earphone 10 through the first connection hole 1375 and the second connection hole 1376. The first side wall 13721 and the fourth side wall 13724 may be connected by the first arcuate transition wall 13725 to avoid sharp structures such as a right angle, an acute angle, etc. , on the inner wall of the closed rear cavity 300, thereby helping to eliminate standing waves. The first arcuate transition wall 13725 may be arranged in a circular arc shape (referred to as a circular arc shape for short). The radius of the circular arc can be greater than or equal to 2 mm. Likewise, the third side wall 13723 and the fourth side wall 13724 may be connected by a second arcuate transition wall 13726. The radius of curvature of at least a portion of the inner wall surface for the first arcuate transition wall 13725 may be greater than the radius of curvature of the corresponding portion of the interior wall surface a second transitional arcuate wall 13726, which also makes it possible to avoid sharp structures such as a right angle, an acute angle, etc., on the inner wall of the closed rear cavity 300. In other embodiments, the second transitional arcuate wall 13726 may be omitted. For example, the portion of the fourth side wall 1374 proximal to the third side wall 13723 may be used to position the second tie hole 1376 so that the second tie hole 1376 can extend along a length direction to be flush with the inner wall surface of the third side wall 13723.

It should be noted that in the thickness direction, the surface of the inner wall of the first tie hole 1375, farthest from the central part 14, may be flush with the inner wall surface of the bottom wall 137 facing the central part 14. The surface of the inner wall of the second tie hole 1376, furthest from the center portion 14 may be flush with the inner wall surface of the bottom wall 1371 facing the center portion 14. That is, the first tie hole 1375 and the second tie hole 1376 may extend along the thickness direction to be flush with the surface of the inner wall bottom wall 1371 to avoid sharp structures such as a right angle, an acute angle, etc., on the surface of the inner wall of the closed rear cavity 300, thereby helping to eliminate standing waves. Additionally, the inner wall surface of at least the first side wall 13721 or the third side wall 13723 may be arcuate when viewed from a height direction to avoid sharp structures such as a right angle, an acute angle, etc. on the closed inner wall surface rear cavity 300. In some embodiments, the inner wall surfaces of the side wall 1372 and the bottom wall 1371 may be an arc joint.

In some embodiments, as shown in FIG. 39, the height of the second side wall 13722 and the fourth side wall 13724 relative to the bottom wall 1371 may be greater than the height of the first side wall 13721 and the third side wall 13723 relative to the bottom wall 1371, so that the central portion 14 can be enclosed between the second side wall 13722 and the fourth side wall 13724. The first side wall 13721 and the third side wall 13723 may respectively be adjacent to the side of the center portion 14 facing the bottom wall 1371. In the thickness direction, the size of the first tie hole 1375 may be greater than or equal to the distance between the bottom wall 1371 and the center portion 14. The size of the second connection hole 1376 may be greater than or equal to the distance between the bottom wall 1371 and the central portion 14 to prevent the inner surface of the wall of the closed rear cavity 300 from contacting sharp structures such as a right angle, an acute angle, etc., helping to thus eliminating standing waves. Additionally, the fastening component 13 may also include a first sealing element 1381 and a second sealing element 1382 resiliently held between the portion 137 and the center body 131. For example, a first sealing element 1381 may be resiliently supported between a second side wall 13722 and a second housing 1315 and surrounding a first communication opening 1375. As another example, a second sealing element 1382 may be elastically supported between a fourth side wall 13724 and a second housing 1315 and surrounding a second communication opening. 1376. Additionally, the outlet end of the first connection hole 1375 may be covered by a first mesh 1383 with an acoustic impedance 1383, and the side of the first mesh 1383 with an acoustic impedance 1383 directed away from the side wall 1372 may also be covered by a protective cover. Likewise, the second end of the second connection hole 1376 may be covered by a second acoustic impedance mesh 1384, and the acoustic impedance side of the second mesh 1384 away from the side wall 1372 may also be covered by a protective cover. Acoustic resistance mesh can not only improve waterproof and dustproof performance, but also reduce sound leakage. The structural strength of the protective cover may be greater than the structural strength of the acoustic resistance mesh to prevent external objects from piercing the acoustic resistance mesh. Additionally, the porosity of the second acoustic impedance mesh 1384 may be less than or equal to the porosity of the first acoustic impedance mesh 1383.

Just as an example, the first sealing element 1381 may include a first passage 13811 and a second passage 13812 connected to the first passage 13811. The first passage 13811 and the second passage 13812 may be attached to and secured to the side wall 1372 and the bottom wall 1371 in the direction from the rear cavity 300, respectively, to increase the total area between the first sealing element 1381 and the portion 137. Accordingly, the first passage 13811 may allow an area of the first acoustic impedance mesh 1383 corresponding to the first communication hole 1375 to be visible. For example, the first pass-through 13811 may surround the first communication opening 1375 and the first mesh 1383 with an acoustic impedance thereon so as to facilitate communication between the rear cavity 300 and the external environment of the earphone 10. Additionally, the first pass-through 13811 may press and lock the first mesh 1383 with acoustically resistive on a side of the side wall 1372 in a direction away from the rear cavity 300 to prevent the first acoustically resistive mesh 1383 from separating from the side wall 1372.

In an embodiment, the design of the second sealing element 1382 and the communication relationship between the second sealing element 1382 and the portion 137 may be the same or similar to the first sealing element 1381 and is not repeated here. Additionally, the first sealing element 1381 and the second sealing element 1382 may be molded at the section 137 by an injection molding process.

It should be noted that in an embodiment, structural components such as the central portion 14, the acoustic impedance portion 137 or mesh, a sealing element thereon, etc., may form a loudspeaker assembly, that is, to simplify assembly, the structural components may be built from modules.

In other embodiments, consistent with FIG. 44, the second side wall 13722 may be missing. The fourth side wall 13724 may be partially used to locate the second connection hole 1376, and the height of the fourth side wall 13724 relative to the bottom wall 1371 may be equal to the height of the first side wall 13721 and the third side wall 13723 relative to the bottom wall 1371 to abut the magnetic circuit system 141 along with a first side wall 13721 and a third side wall 13723. The first sealing element 1381 may first be integrated into a preformed receiving groove of the first sealing element 1381 or the second housing 1315. The first sealing element 1381 may then be attached and secured to the second housing 1315. Thus, the second housing 1315 and the first sealing element 1381 may secure the first acoustic impedance mesh 1383 together and subsequent assembly may be performed. The side of the first sealing element 1381 facing the second housing 1315 may be provided with a receiving groove for receiving the first acoustic impedance mesh 1383. Likewise, a second sealing element 1382 and a second acoustic resistance mesh 1384 may also be attached and secured to the second housing 1315 to form a housing assembly, that is, a second sealing element 1382, a second acoustic resistance mesh 1384, and a second housing 1315 for simplicity. assemblies can be built from modules.

Based on the above detailed description, as shown in FIG. 47, the following definitions can be made: the outer cavity 200 may have a first opening 201 allowing the outer cavity 200 to communicate with the external environment of the earphone 10, and the rear cavity 300 may have a second opening 301 and a third opening 302 that allow the rear cavity 300 to communicate with the earphone. 10 and its external environment. Accordingly, the second opening 301 may be further from the ear opening than the first opening 201 and the third opening 302. Each of the first opening, second opening, and third opening may relate to an effective communication region between the outer cavity 200 or the rear cavity 300 and the external environment of the earphone 10 That is, the region with the smallest cross-section through which sound is transmitted from the outer cavity 200 or rear cavity 300 to the earphone 10 and beyond. For example, the central portion 14 may operate in conjunction with the first body 1314 (and the protective panel 1316) to form an outer cavity 300, and the first hole 201 may correspond to a resonator hole 1311. In an embodiment in which the earphone 10 is configured with a portion 137, that is, a portion 137 operates in conjunction with the central portion 14 to form the rear cavity 300, if the actual area of the pressure relief hole 1312 is larger than the actual area of the second communication hole 1376, the second hole 301 may correspond to the second communication hole 1376. If the actual area of the pressure relief hole 1312 is smaller, than the actual area of the second communication hole 1376, the second hole 301 may correspond to the pressure relief hole 1312. If the pressure relief hole 1312 and the second communication hole 1376 alternate with each other, the second hole 301 may correspond to a portion in which the pressure relief hole 1312 and the second communication hole 1376 do not cover each other. The third hole 302 may be similar to the second hole 301 and the details will not be repeated here. In an embodiment in which the earphone 10 is formed without the portion 137, that is, the second body 1315 cooperates with the central part 14 to form the rear cavity 300, the second hole 301 and the third hole 302 may directly correspond to the pressure relief hole 1312 and the sound control hole 1313. respectively. In some embodiments, if the earphone 10 is configured with at least no outer cavity 200 or no back cavity 300, the corresponding opening naturally cannot exist for long.

Additionally, for simplicity of description, the effective area described in the present disclosure can be defined as the product of the actual area of the effective coupling region and the porosity of the corresponding acoustic impedance mesh. For example, when the first opening 201 is covered with an acoustic impedance mesh, the effective area of the first opening 201 may be the product of the actual area of the first opening 201 and the porosity of the acoustic impedance mesh. When the first hole 201 is not covered by an acoustic barrier, the effective area of the first hole 201 may be the actual area of the first hole 201. The second hole 301 and the third hole 302 may be similar to the first hole 201 and the details will not be repeated here. In the present disclosure, the effective area of the third hole 302 may be smaller than the effective area of the second hole 301.

In some embodiments, as shown in FIG. 39 i. 44, the actual area of the output end of the second coupling hole 1376 may be less than or equal to the actual area of the output end of the first coupling hole 1375, so that the actual area of the effective coupling region between the sound control hole 1313 and the rear cavity 300 may be less than or equal to the actual area of the effective coupling region. between the pressure relief hole 1312 and the rear cavity 300. The actual area of the outlet end of the pressure relief hole 1312 may be greater than or equal to the actual area of the outlet end of the first communication hole 1375. In such cases, the size of the outlet end of the length direction sound control hole 1313 may be equal to the size of the outlet end the end of the pressure relief hole 1312 in the length direction. In some embodiments, the size of the outlet end of the thickness direction sound control hole 1313 may be equal to the size of the outlet end of the thickness direction pressure relief hole 1312. Thus, the actual area of the effective coupling region between the back cavity 300 and the external environment of the earphone 10 in the sound control hole 1313 or in the pressure relief hole 1312 can be adjusted by adjusting the size of the corresponding coupling hole to meet the corresponding acoustic design requirements. In addition, the sound control hole 1313 and the pressure relief hole 1312 can be designed to have a slight difference in appearance to improve appearance compatibility, thereby allowing them to use an acoustic resistance mesh with the same specifications to reduce the number types of materials or avoid mixing materials. In other embodiments, the size of the sound control hole 1313 may be changed by changing the second link hole 1376 to create a sound control hole 1313 that is different in appearance from the pressure relief hole 1312 to increase the degree of recognition by appearance. Additionally, the porosity of the second acoustic impedance mesh 1384 may be less than or equal to the porosity of the first acoustic impedance mesh 1383 such that the effective area of the effective coupling region between the sound control opening 1313 and the rear cavity 300 may be less than or equal to the effective area of the effective coupling region between the opening. 1312 pressure relief and rear cavity 300.

Additionally, the effective connection region (eg, the first connection hole 1375) between the pressure relief hole 1312 and the rear cavity 300 may have a first center (denoted as O1) in the length direction. An effective coupling region (e.g., a second coupling hole 1376) between the sound control hole 1313 and the rear cavity 300 may have a second center (denoted as O2) in the length direction, and the second center may be further from the center of the resonator hole 1311 (denoted as O0) than first center, in the direction of length. That is, the second center may be closer to the third side wall 13723 to maximize the distance between the sound control hole 1313 and the sound hole 1311, thereby weakening the anti-phase suppression between the sound output to the external environment of the earphone 10 through the sound hole 1313. and sound transmitted to the ear through sound hole 1311.

It should be noted that the center of the hole in the present disclosure may refer to a location where the distances to the circle of the closed curve surrounding the hole are equal. For a regular shape such as a circle, rectangle, or the like, the center of the hole described in the present disclosure may be the geometric center. For other irregular shapes, the center of the hole described in the present disclosure may be the centroid.

In fig. 48 is a schematic representation of the sound field distribution of an acoustic dipole corresponding to some embodiments of the present disclosure. As shown in FIG. 48, the sound transmitted outside the earphone 10 through the first hole 201 can be regarded simply as the first sound generated by the monopole sound source A1. The sound transmitted outside the earphone 10 through the second opening 301 can be considered simply as the second sound generated by the monopole sound source A2. The second sound may have the opposite phase of the first sound and may be inverted and canceled out in the far field. That is, to reduce sound leakage, an “acoustic dipole” can be formed. Preferably, in the wearing state, the line connecting the two monopole sound sources may be directed towards the ear opening (designated as the “listening place”) so that the user can hear a sufficiently loud sound. The sound pressure at the listening position (denoted as P _ear ) can be used to indicate the strength of the sound heard by the user. Additionally, sound pressures (denoted as P _far ) at a spherical surface centered at the user's listening position can be used to indicate the leakage strength of the earphone 10's sound emitted into the far field. Many statistical methods can be used to obtain P _far , such as the average sound pressure at each point on a spherical surface, the sound pressure at each point on a spherical surface to classify areas, etc. Generally, the sound pressure P _ear transmitted by the earphone 10 to the user's ear should be large enough to improve the listening effect, and the far-field sound pressure P _far should be small enough to enhance the leakage sound reduction effect. Therefore, the parameter α can be used as an indicator to evaluate the leakage sound reduction effect or listening effect of the earphone 10, which can be determined according to the following equation as follows:

Additionally, when the earphone 10 is in a wearing state, the orthogonal projection of the attachment component 13 (for example, the side of the attachment component 13 located on the ear hole near the crown of the user, which contacts the antihelix on the outer side of the ear) on the ear may fall mainly within curl. The first hole 201 may be located between the antihelix and the upper root of the ear and transmit sound to the auditory opening. Additionally, since the ear cavity and pinna have a certain depth and connect to the auditory opening, the orthogonal projection of the first hole 201 on the ear may be at least partially located within the ear cavity and/or pinna so that sound transmitted to the external the environment of the earphone 10 through the first opening 201 could be transmitted to the ear opening. In fig. 49 is a schematic representation of the sound field distribution of an acoustic dipole with a baffle corresponding to some embodiments of the present disclosure. In fig. 50 is a schematic representation of far-field sound pressure for an acoustic dipole with and without a baffle, corresponding to some embodiments of the present disclosure. Moreover, as shown in FIG. 49 i. 50, the ear may also be equivalent to a partition installed near the listening position and has the effect of converging and reflecting sound transmitted to the external environment of the earphone 10, thereby changing the distribution of the sound field. As a result, it not only helps to increase the sound pressure at the listening position, but also reduces the sound pressure in the far field. Namely, the listening position can be set between the partition and the exclusive sound source A1. A partition can distort the sound field distribution, thereby increasing the sound pressure at the listening position. Meanwhile, the entire sound field can continue to be a large area for antiphase cancellation, thus reducing the far-field sound pressure. It should be noted that the user's head can also be used as part of the partition. Additionally, since the distance between each of the two monopole sound sources and the ear can be much smaller than the size of the ear, the ear can obtain an effect similar to an acoustic reflector.

In fig. 51 is a schematic diagram of a theoretical model of an acoustic dipole with a baffle corresponding to some embodiments of the present disclosure. The inventors of the present disclosure, in a long-term study, discovered that in a theoretical model of acoustic dipole-baffle coordination, as shown in FIG. 51, the parameter α can be influenced mainly by factors containing the angle θ between the connection line of two monopole sound sources (designated as A1-A2) and the normal of the partition, the distance d between the two monopole sound sources, the distance D between the monopole sound source A1 and listening position, length L of the screen, distance B between the partition and the listening position, etc. When the angle θ and the distance d are constant, the longer the length L of the screen and the shorter the distance B, the smaller the parameter α can be, that is, the better the sound leakage suppression effect can be. Based on the above-mentioned relevant description, the user's ear can be considered as a partition, so that the length L can be relatively determined, for example, about 50-80 mm, and the distance B can be around zero. Further, to increase the sound pressure at the listening position to enhance the listening effect, the first hole 201 may generally be installed as close as possible to the ear opening, that is, the distance D may generally be as small as possible. For example, the distance between the center of the first opening 201 and the center of the ear canal may be less than or equal to 16 mm. As another example, the distance between the lower edge of the fastening component 13 facing the ear canal and the highest point (eg, CP1) of the hook-shaped component 11 in the direction away from the fastening component 13 and in the height direction may be greater than or equal to 19 mm. Additionally, if the distance d is too small, the sound pressure at the listening position may decrease, which is not conducive to hearing sound. If the distance d is too large, the far-field sound pressure may increase, which is not conducive to reducing sound leakage. In addition, the actual size of the fastening component 13 must also be taken into account. Therefore, the distance between the center of the second hole 301 and the center of the first hole 201 may be in the range of 7-15 mm. In a specific embodiment, the distance between the centers of the second hole 301 and the first hole 201 may be 9 mm.

In fig. 52 is a schematic representation of the relationship between a parameter α and an angle θ corresponding to some embodiments of the present disclosure. Additionally, as shown in FIG. 52, taking the "without baffle" curve as the reference, the "with baffle" curve can obviously be preferable to reduce the parameter α, that is, to increase the effect of reducing sound leakage. When the angle θ = 0°, the parameter α can reach the minimum value, which indicates that the best effect of reducing sound leakage is obtained. In the present disclosure, the angle θ can be within ±80°. Preferably, the angle θ may be within ±40°. More preferably, the angle θ may be within ±20°. As shown in FIG. 47, assuming that the second hole 301 is generally located on the side of the first hole 201 in the direction away from the ear hole, the angle θ can only take a positive value.

In fig. 53 is a schematic diagram of the relative relationship between an acoustic dipole and an ear corresponding to some embodiments of the present disclosure. Just as an example, as shown in FIG. 53 and 47, a three-dimensional coordinate system (denoted as X'Y'Z') can be established based on any three basic sections and any three basic axes of the human body perpendicular to each other. The angle θ between the connecting line of two monopole sound sources and the normal of the partition can be determined by the angles between the line A1-A2 and the X' axis, the Y' axis and the Z' axis, respectively. Based on the above-mentioned corresponding description, the connection line A1-A2 between two monopole sound sources can also be considered as a connection line (denoted as O1-O0) between the center (for example, O1) of the second hole 301 and the center (for example, O0) of the first hole 201 .The angle θ1 between the connection line O1-O0 and the sagittal plane can be greater than or equal to 10°. Preferably, the angle θ1 may be greater than or equal to 30°. The angle θ2 between the connection line O1-O0 and the coronal plane may be greater than 0°, preferably the angle θ2 may be greater than or equal to 4°. The angle θ3 between the connection line O1-O0 and the horizontal plane may be less than or equal to 80°, preferably the angle θ3 may be less than or equal to 60°. In a specific embodiment, the three angles θ1, θ2, and θ3 may be 34°, 5°, and 56°, respectively.

Additionally, when the earphone 10 is in a wearing state, the fastening component 13 may be located near the outside of the ear and the first hole 201 on the fastening component 13 may face the ear, so that the fastening component 13 can be considered simply as the average normal of the septum perpendicular to the first hole 201 The angle between the connection line O1-O0 and the reference plane perpendicular to the middle normal of the first hole 201 may be between 25° and 55°. The average normal can be determined as follows:

When the first hole 210 is on a plane, the reference plane perpendicular to the mean normal may be a plane tangent to the first hole 201. Accordingly, the mean normal may be parallel to the vibration direction of the center portion 14 and the thickness direction. Therefore, the angle between the connection line O1-O0 and the vibration direction may be between 0° and 50°, preferably may be between 0° and 40°.

Additionally, based on the above-mentioned relevant description, the ear can be considered simply as a partition acting in conjunction with an acoustic dipole. The reference plane can be defined in terms of at least three physiological positions along the outside of the ear that are not collinear. For example, the connection lines between each of the superior root of the ear, the intertragic serratus, and Darwin's node can form a reference plane (designated LD-LB-LA) that can be used to describe the septum. The angle between the connection line O1-O0 and the reference plane can be between 23° and 53°. In a specific embodiment, the angle between the connection line O1-O0 and the reference plane may be 38°.

Additionally, when the earphone 10 is in a wearing state, the earphone 10 may form a plurality of contact points with the ear to provide stability when worn. As a result, positions corresponding to contact points may also exist on the earpiece 10. In the embodiment in which the hook-shaped component 11 is configured with the elastic component 112, the elastic deformation of the elastic component 112 before and after wearing may cause some deviation in the relationship relationship, and the deviation may be controlled by the deformability of the elastic component 112. Therefore, for ease of description, the deviation may be acceptable. Just by way of example, according to FIG. 31 and 59, the free end of the fastening component 13, farthest from the fastening assembly 20, may have a first support point (eg, CP0) for contacting the outside of the ear. The mounting assembly 20 may have a second reference point (eg, CP3) for contacting the upper root of the ear and a third reference point (eg, CP6) for contacting the ear on the back side of the ear. The connection lines between each two of the first reference point, the second reference point and the third reference point may form a reference plane (designated as CP0-CP3-CP6) and the reference plane may be used to describe the partition. The angle between the connection line O1-O0 and the reference plane can be between 15° and 45°. In a specific embodiment, the angle between the connection line O1-O0 and the reference plane may be 30°.

It should be noted that compared to the septum, the outer surface of the ear may not be flat and may have an irregular structure. Therefore, the above-mentioned parameters related to the parameter α can be obtained through theoretical analysis and actual measurement. The actual measurement may refer to the measurement taken after the earphone 10 is worn on the simulator (eg, GRAS 45BC KEMAR).

As everyone knows, although the frequency range of sounds that can be perceived by normal human ears lies between 20 Hz and 20 kHz, this does not mean that all of these sounds can be heard. In general, normal human ears can hear sounds primarily at frequencies below 4 kHz. Thus, on the one hand, the resonant frequency of the first sound transmitted to the external environment of the earphone 10 through the first hole 201 can be shifted to high frequencies as much as possible, so that the frequency response curve of the first sound can be as flat as possible in the mid-high frequency band, thus improving the listening effect. On the other hand, the resonant frequency of the second sound transmitted to the external environment of the earphone 10 through the second hole 301 can also be shifted to high frequencies as much as possible, which can not only reduce the user's sensitivity to sound leakage, but also expand the anti-phase cancellation in the high frequency band , so as to reduce sound leakage without affecting the listening effect. Therefore, the frequency response curve of the first sound may have its first lowest resonant peak at mid-high frequencies. The first lowest resonant peak at the mid-high frequency may be the resonant peak with the lowest frequency of all resonant peak frequencies in the mid-high frequency bands and above the frequency response generated by the first hole 201. Likewise, the frequency response of the second sound may have the second lowest low resonant peak at mid-high frequencies. The second lowest resonant peak in the mid-high frequency bands may be the lowest frequency resonant peak of all resonant peak frequencies in the mid-high frequency bands and above in the frequency response formed by the second hole 301. In short, the frequency response of the first sound may have the first resonant peak with the lowest frequency in the mid-high frequency band and above. Likewise, the frequency response curve of the second sound may have a second resonant peak with the lowest frequency in the mid-high frequency band and above. The peak resonant frequency of the first lowest resonant peak at mid-high frequencies and the peak resonant frequency of the second lowest resonant peak at mid-high frequencies may be greater than or equal to 5 kHz. Preferably, the peak resonant frequency of the first lowest resonant peak at mid-high frequencies and the peak resonant frequency of the second lowest resonant peak at mid-high frequencies may be greater than or equal to 6 kHz. Additionally, the difference between the peak resonant frequency of the first lowest resonant peak at mid-high frequencies and the peak resonant frequency of the second lowest resonant peak at mid-high frequencies may be less than or equal to 1 kHz, so that anti-phase cancellation on the second sound and the first sound can better performed in the outfield.

It should be noted that in the present disclosure, the frequency range corresponding to the low frequency band is a range in the range of 20-150 Hz. The frequency range corresponding to the mid-frequency band can be in the range 150 Hz - 5 kHz. The frequency range corresponding to the high frequency band may be in the range of 5-20 kHz. The frequency range corresponding to the mid-low frequency band can be the range of 150-500 Hz. The frequency range corresponding to the mid-high frequency band can be in the range 500 Hz - 5 kHz. For the frequency response described in the present disclosure, the horizontal axis may represent frequency and the unit may be Hertz (Hz). The vertical axis can represent intensity and the unit of measurement can be decibel (dB). Additionally, the first lowest mid-high frequency resonant peak may comprise a resonant peak generated by cavity resonance and/or a standing wave peak generated by reflection from the cavity surface. The second lowest mid-high frequency resonant peak may be similar to the first lowest mid-high frequency resonant peak, and the details are not described here.

Based on the above detailed description, when wearing the earphone 10, the user can hear mainly the first sound, thus the peak resonant frequency of the first lowest mid-high frequency resonant peak can have a great influence on the listening effect. The first lowest resonant peak of mid-high frequencies is studied to improve the listening effect. Resonant peaks in the frequency response of the first sound in the mid-high frequency band and above can be caused mainly by cavity resonance, which usually satisfies the formula for calculating the resonant frequency of a Helmholtz resonant cavity:

where f ₀ is the resonant frequency of the resonant cavity, c ₀ is the speed of sound in air, S is the actual area of the first hole 201, V is the volume of the outer cavity 200, l is the length of the first hole 201 and r is the equivalent radius of the first hole 201. l usually depends on the thickness of the housing walls.

Obviously, the larger the actual area of the first hole 201 and the smaller the volume of the outer cavity 200, the higher the resonant frequency corresponding to the resonance of the cavity can be, that is, the first lowest resonant peak of the mid-high frequencies can be more easily shifted to the higher frequencies. Additionally, the first hole 201 may typically be covered with an acoustic impedance mesh to improve the waterproof and dustproof performance and adjust the frequency response. Just as an example, the effective area of the first hole 201 may be greater than or equal to 2 mm ² . In a specific embodiment, the actual area of the first opening 201 may be greater than or equal to 7 mm ² and the porosity of the acoustic impedance mesh covering the first opening 201 may be greater than or equal to 13%. In some embodiments, the pore size may be greater than or equal to 18 microns. Additionally, the volume of the outer cavity 200 may be less than or equal to 90 mm ³ . The volume of the outer cavity 200 may be approximately the product of the area of the diaphragm 143 and the depth of the outer cavity 200 in the vibration direction of the central portion 14. Once the specifications and model of the central portion 14 are selected, and provided that the vibration path of the diaphragm 143 is satisfactory, the depth of the outer cavity 200 in the vibration direction can be as small as possible. Therefore, the maximum depth of the outer cavity 200 in the vibration direction may be less than or equal to 3 mm, preferably may be less than or equal to 1 mm.

In fig. 54 is a schematic diagram of an ear-facing earphone design corresponding to some embodiments of the present disclosure. Additionally, as shown in FIG. 54, when the outer cavity 200 is configured as a cubic structure, the cavity surface of the outer cavity 200 may form at least a pair of parallel or approximately parallel reflective surfaces, thereby forming a standing wave. Specifically, when a sound wave is reflected in a cavity, the incident wave and the reflected wave can overlap to form a fixed antinode and a fixed node, thus initiating a standing wave at a certain frequency. In other words, the resonant frequency response peaks for the first sound in the mid-high frequency band and above can also be obtained from a standing wave, which typically satisfies the following equation:

where, f ₀ is the frequency of the peak of the standing wave, c ₀ is the speed of sound in air, L is the distance between the center of the first hole 201 and the surface of the outer cavity 200, and n is a positive integer.

Obviously, the smaller the distance L, the higher the frequency corresponding to the peak of the standing wave can be. Thus, the first lowest resonant peak of the mid-high frequencies may be more easily shifted to the upper frequencies. Just as an example, on a reference plane perpendicular to the vibration direction of the central portion 14 (eg, the location plane Y1Z1), the distance between the center of the first hole 201 and the surface of the outer cavity 200 may be less than or equal to 17.15 mm.

Based on the above-mentioned relevant description, the outer cavity 200 may have a first outer cavity surface 202 and a third outer cavity surface 204 spaced apart from each other in a major axis direction of the central portion 14, and a second outer cavity surface 203 and a fourth outer cavity surface 205 are spaced apart from each other in the minor axis direction of the central portion 14. The first surface 202 of the outer cavity may be closer to the connecting component 12 than the third surface 204 of the outer cavity. The fourth outer cavity surface 205 may be closer to the ear opening than the second outer cavity surface 203. The distance between the first outer cavity surface 202 and the third outer cavity surface 204 may be greater than or equal to the distance between the second outer cavity surface 203 and the fourth outer cavity surface 205. Additionally, the vertical distance from the center of the first hole 201 to the first outer cavity surface 202, the second outer cavity surface 203, the third outer cavity surface 204, and the fourth outer cavity surface 205 may be defined as the first distance L1, the second distance L2, the third distance L3, and fourth distance L4, respectively. Assuming that the four vertical distances have the following basic relationship: L1≥L2≥L3≥L4, the frequencies corresponding to the corresponding standing wave peaks may have the following relationship: f1≤f2≤f3≤f4. The first standing wave peak of the first sound in the mid-high frequency band can be determined by the largest distance of the four vertical distances, so that L1≤17.15. Just by way of example, the first distance may be less than or equal to the third distance and the fourth distance may be less than or equal to the second distance so that the first opening 201 may be closer to the ear opening.

It should be noted that the first opening 201 may be opposite the diaphragm 143 in the vibration direction of the central portion 14, and the ratio of the size of the first opening 201 in the major axis direction of the central portion 14 to the size of the first opening 201 in the minor axis direction of the central portion 14 may be less than or equal to 3. For example, the first hole 201 may be circular in shape. As another example, the first hole 201 may be shaped like a racing circle.

In fig. 55 is a schematic diagram of a headphone design in accordance with some embodiments of the present disclosure. As shown in FIG. 55, the earphone 10 may further include a Helmholtz resonance cavity 400 coupled to an outer cavity 200. The Helmholtz resonance cavity 400 may be configured to attenuate the intensity of a peak resonance of the first lowest mid-high frequency resonance peak. That is, the sound energy in the outer cavity 200 near the peak resonant frequency can be absorbed to suppress a sudden increase in the intensity of the peak resonance, so that the frequency response can be flatter and the sound quality can be more balanced. In fig. 56 is a schematic diagram of the frequency response of a headphone according to some embodiments of the present disclosure. Just by way of example, according to FIG. 56, the difference between the peak resonance intensity of the first lowest mid-high frequency resonant peak when the hole connecting the Helmholtz resonant cavity 400 and the outer cavity 200 is in the open state (indicated as "HR_Y"), and the resonance peak intensity of the first lowest resonant The mid-high frequency peak when the hole connecting the Helmholtz resonant cavity 400 and the outer cavity 200 is in the closed state (indicated as “HR_N”) may be greater than or equal to 3 dB. Additionally, the hole connecting the Helmholtz resonant cavity 400 and the outer cavity 200 may be configured with an acoustic impedance mesh to further adjust the frequency response. The porosity of a mesh with acoustic resistance can be greater than or equal to 3%.

Additionally, to better absorb acoustic energy, a plurality of Helmholtz resonant cavities 400 may exist in the outer cavity 200 near the peak resonant frequency. A plurality of Helmholtz resonant cavities 400 may be arranged parallel to the outer cavity 200, for example, respectively coupled to the outer cavity 200. Alternatively, multiple Helmholtz resonance cavities 400 may be arranged in series with the outer cavity 200, for example, coupled to the outer cavity 200 through one of a plurality of resonant cavities 400 Helmholtz.

In some embodiments, as shown in FIG. 36, the Helmholtz resonance cavity 400 may be located in the second region 13B, for example, in the flexible cover structure 132. Namely, the blind hole 1321 in the flexible cover structure 132 can not only provide a deformation space for the flexible cover structure 132, but also serve as a resonance cavity 400 Helmholtz. Accordingly, a connection hole connecting the Helmholtz resonance cavity 400 and the outer cavity 200 may be located on the protective panel 1316.

In other embodiments, as shown in FIG. 41, the Helmholtz resonance cavity 400 may be located in the connecting component 12, for example, between the third housing 122 and the first housing 1314. Specifically, the first flange may be located on the inner surface of the wall of the first housing 1314 facing the third housing 122 and on the third housing 122 can be pressed and held on the first flange to close and form the Helmholtz resonance cavity 400. Alternatively, the inner wall surface of the third housing 122 facing the first housing 1314 may be provided with a second flange. The first housing 1314 can be pressed and held against the second flange to close and form the Helmholtz resonance cavity 400. Briefly, the third body 122 and the first body 1314 may be fastened together to form a Helmholtz resonance cavity 400. Additionally, the Helmholtz resonance cavity 400 can be formed by a molding process and then placed and fixed in the connecting component 12.

Based on the detailed description mentioned above, in order to shift the resonant frequency of the second sound as much as possible to high frequencies, the same or similar technical solution can be adopted for the rear cavity 300 as for the outer cavity 200, which is not repeated here. The main difference from the outer cavity 200 may be that for a standing wave, the back cavity 300 can destroy the high pressure region of the sound field in the back cavity 300 to shorten the wavelength of the standing wave in the back cavity 300, thereby making the peak resonant frequency the second lowest resonant peak of mid-high frequencies as large as possible. As shown in FIG. 47, the third hole 302 may be located in the high pressure region of the sound field in the rear cavity 300. For example, the third hole 302 and the second hole 301 may be located on opposite sides of the center portion 14. In FIG. 58 is a schematic diagram of the frequency response of a headphone according to some embodiments of the present disclosure. Just as an example, as shown in FIG. 58, the peak resonant frequency of the second lowest mid-high resonant peak when the third hole 302 is in the open state (indicated as “On”) may shift to the high frequency region compared to the peak resonant frequency of the second lowest mid-high resonant peak. high frequencies when the third hole 302 is in a closed state (labeled "Off") and the offset amount may be greater than or equal to 1 kHz. Additionally, the effective area of the third hole 302 may be smaller than the effective area of the second hole 301 to adjust the peak resonant frequency of the second lowest mid-high frequency resonant peak. In some embodiments, the size of the second opening 301 in the major axis direction of the central portion 14 may be larger than the size of the first opening 201 in the major axis direction of the central portion 14.

In fig. 57 is a schematic diagram of the rear cavity design of an earphone corresponding to some embodiments of the present disclosure. Based on the above description, in accordance with FIG. 57, the rear cavity 300 may have a first rear cavity surface 303 and a second rear cavity surface 304 spaced apart from each other in a major axis direction of the central portion 14. The second opening 302 and the third opening may be spaced apart from each other in a minor axis direction. axis of the central portion 14. The actual area of the third opening 302 may be smaller than the actual area of the second opening 301, so that the effective area of the third opening 302 may be smaller than the effective area of the second opening 301. A section of at least the first rear cavity surface 303 and the second The surface 304 of the rear cavity proximal to the third hole 302 may be arranged in an arc shape along the vibration direction of the central portion 14 to prevent sharp structures such as a right angle, an acute angle, etc., on the inner wall of the closed rear cavity 300, such that preferable for eliminating standing waves. Additionally, at least the first cavity surface 303 or the third cavity surface 305 may be arranged in an arc shape along the minor axis direction, which is also advantageous for eliminating standing waves.

Additionally, the opening direction of the second hole 301 may face the top of the user's head. For example, the angle between the opening direction and the vertical axis may be between 0° and 10° to allow the second opening 301 to be further away from the ear canal than the third opening 302. As a result, it may be difficult for the user and other people in the environment to hear sound output to the external environment of the earphone 10 through the second hole 301, thereby reducing sound leakage. The opening direction of the second hole 301 may refer to the direction in which the middle normal is located. Accordingly, the second hole 301 may have a first center (such as O1) in the major axis direction of the central portion 14. The third hole 302 may have a second center (such as O2) in the major axis direction. The second center may be located further from the center of the first hole 201 than the first center in the major axis direction to maximize the distance between the third hole 302 and the first hole 201, thereby reducing anti-phase cancellation between sound output to the external environment of the earphone. 10 through the third opening 302, and sound transmitted to the ear through the first opening 201. The first back cavity surface 303 may be closer to the connecting component 12 than the second back cavity surface 304. The radius of curvature of at least a portion of the first back cavity surface 303 may be greater than the radius of curvature of a corresponding portion of the second back cavity surface 204.

Just by way of example, the first rear cavity surface 303 may comprise a first subrear cavity surface 3031, a second subrear cavity surface 3032, and a third subrear cavity surface 3033 that are connected in series. The first sub-rear cavity surface 3031 may be closer to the second opening 301 and further from the second rear cavity surface 304 than the third sub-rear cavity surface 3033. At least the second sub-posterior cavity surface 3032 and the third sub-posterior cavity surface 3033 may be arranged in an arc shape. For example, the second sub-rear surface of the cavity 3032 may be arranged in an arc shape. The arc radius can be greater than or equal to 2 mm. In the direction in which the second hole 301 faces the third hole 302, the angle between the line tangent to the second surface 3032 of the subposterior cavity and the minor axis direction of the central portion 14 may gradually increase, and the angle between the line tangent to the third surface 3033 of the subposterior cavity and the direction of the minor axis may remain unchanged or gradually decrease.

It should be noted that the fastening assembly 20 attached to the fastening component 13 described in the present disclosure can be used primarily to cause the fastening component 13 to contact the outside of the ear in a wearing state. In some embodiments, the fastening assembly 20 may include a hook-shaped component 11 and a connecting component 12 connected to the hook-shaped component 11 and the fastening component 13. The corresponding design and connection relationships may be as described in detail for any of the embodiments of the present disclosure, which is not repeated here. In fig. 59 is a schematic diagram of a headphone structure in a wearing state corresponding to some embodiments of the present disclosure. In other embodiments, as shown in FIG. 59, the fastening assembly 20 may be arranged in a ring shape and around the ear, for example, as shown in diagram (a) of FIG. 59. In some embodiments, the fastening assembly 20 may also be located in the ear hook and back hook structure and around the back of the head, as shown in diagram (b) of FIG. 59. In some embodiments, the mounting assembly 20 may also be positioned as a headband and around the crown, as shown in diagram (c) of FIG. 59. Additionally, the technical solutions described in the present disclosure can be applied to an earphone, hearing aid, audio glasses, or other smart glasses such as AR, VR, MR, and the like.

The descriptions may only be part of the embodiments of the present disclosure and may not limit the scope of the present disclosure. Any equivalent device or equivalent conversion process made using the descriptive illustrations and drawings of this disclosure, or used directly or indirectly in other related fields of technology, may be included within the scope of protection of this disclosure under the same principles.

Claims (22)

1. An earphone, comprising: a hook-shaped component, a connecting component and a fastening component, wherein, when the earphone is in a wearing state, the hook-shaped component is configured to be hung between the back of the user's ear and the user's head, the attachment component is configured to contact the outside of the ear, wherein a central portion configured to generate sound is mounted on the attachment component, and the attachment component does not obstruct the external auditory canal, and the connecting component is configured to connect the hook-shaped component and the fastening component and extend from the head in a direction away from the head to interact with the hook-shaped component to provide the fastening component with a pressing force on the outer side of the ear. 2. The earphone according to claim 1, wherein in a direction from a first connection point between the hook-shaped component and the connecting component to a free end of the hook-shaped component the hook-shaped component is curved toward the back of the ear to form a first contact point with the back of the ear, and the attachment component forms a second contact point with the outer side of the ear, wherein a distance between the first contact point and the second contact point along a direction of travel of the connecting component in the natural state is less than such a distance in the wearing state to provide the attachment component with a pressing force on the outer side of the ear. 3. The earphone of claim 2, wherein the hook-shaped component defines a third contact point with the back of the ear, wherein the third contact point is located between the first connection point and the first contact point and is closer to the first connection point, wherein the distance between the projections of the first contact point and the third contact point on a reference plane perpendicular to the passing direction of the connecting component in the natural state is less than such a distance in the wearing state. 4. The earphone according to claim 1, wherein in a direction from a first connection point between the hook-shaped component and the connecting component to a free end of the hook-shaped component, the hook-shaped component is curved in the direction of the head to form a first contact point and a second contact point with the head , wherein a first contact point is located between the second contact point and the first connection point so that the hook-shaped component forms a lever structure with the first contact point as a support point; And a force directed away from the head and provided by the head at the second contact point causes a force directed towards the head at the first connection point through the lever structure to provide the fastening component with a pressing force on the outer side of the ear through the connecting component. 5. The earphone according to claim 1, wherein the attachment component has a thickness direction, a length direction and a height direction orthogonal to each other, the thickness direction is configured as a direction in which the attachment component is close to the ear or distant from the ear in a wearing state, and the height direction configured as a direction in which the fastening component is near the top of the user's head or away from the top of the user's head in a wearing state, wherein in the natural state, as viewed from the side of the earphone facing the top of the user's head in the wearing state, the fastening component is at least separated from a section of the hook-shaped component located near the connecting component in the thickness direction; And the connecting component is arranged in an arc shape and is connected between the fastening component and the hook shaped component. 6. The earphone of claim 5, wherein the ear-facing side of the attachment component comprises a first region and a second region, wherein the first region is made with a resonator hole; And the second region is further from the connecting component than the first region and protrudes more toward the ear than the first region so as to allow the sound hole to be spaced away from the ear in a wearing state. 7. The earphone according to claim 6, wherein the distance between the second region and the section of the hook-shaped component closest to the connecting component in the thickness direction is in the range of 1-5 mm. 8. The earphone according to claim 7, wherein the orthogonal projection of the section of the hook-shaped component proximal to the connecting component in the thickness direction partially overlaps the second region. 9. Earphone according to any one of paragraphs. 6-8, wherein the maximum protrusion height of the second region relative to the first region in the thickness direction is greater than or equal to 1 mm. 10. The earphone according to claim 1, wherein the attachment component contacts the antihelix of the ear.