JP2023100000A - earphone - Google Patents

Abstract

To provide an earphone.SOLUTION: An earphone comprises a hook-like part, a holding part, and a connection part. In a mounting state, the hook-like part is hooked between a rear side of an ear part and a hear part of a user. The holding part comes into contact with a front side of the ear part. The connection part connects the hook-like part and the holding part, is extended to an outer side of the head part from the head part, and provides a pressing force against the front side of the ear part to the holding part in cooperation with the hook-like part. In the earphone, the connection part is installed between the hook-like part and the holding part. The connection part can be adopted to the thickness of the ear part so as to bypass an organization at and near a root of an ear in a mounting state of the earphone, and is thus useful for improving the comfortableness and stability of mounting.SELECTED DRAWING: Figure 2

Description

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

This application claims priority from a Chinese patent application entitled "Earphone", application number 2020107433964, filed with the State Intellectual Property Office of China on July 29, 2020, the entire contents of which are incorporated herein by reference. shall be incorporated into this application.

This application claims priority from a Chinese patent application entitled "Earphone", application number 2020113285194, filed with the State Intellectual Property Office of China on November 24, 2020, the entire contents of which are incorporated herein by reference. shall be incorporated into this application.

Earphones are widely applied in people's daily life, and by using them with electronic devices such as mobile phones, computers, etc., users can enjoy a feast of hearing. According to the working principle of earphones, they can generally be divided into air conduction earphones and bone conduction earphones. According to the manner in which the user wears the earphones, they can be further divided into headphones, ear-mounted earphones and in-ear earphones. According to the interaction method between the earphone and the electronic device, it can be generally divided into a wired earphone and a wireless earphone.

The embodiment of the present application includes a hook-shaped part that is hung between the rear side of the user's ear and the head, a holding part that contacts the front side of the ear, and a connection between the hook-shaped part and the holding part. and a connecting part extending from the head to the outside of the head and cooperating with the hook-shaped part to provide the holding part with a pressing force against the front side of the ear.

The beneficial effects of the present application are as follows. In the earphone according to the present application, the connection part is installed between the hook-shaped part and the holding part, and the connection part can match the thickness of the ear. It bypasses nearby tissue to help improve wearing comfort and stability.

In order to describe the technical solutions in the embodiments of the present application more clearly, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings in the following description are for several implementations of the present application. They are examples only and a person skilled in the art can derive other drawings based on these drawings without creative effort.

1 is a schematic front view of a contour of a user's ear as described herein; FIG. 1 is a schematic front view of an embodiment of an earphone according to the present application; FIG. FIG. 3 is a schematic configuration diagram of the left side of the earphone in FIG. 2; FIG. 3 is a schematic view from the front when the earphones in FIG. 2 are in a worn state; FIG. 3 is a schematic view of the earphones in FIG. 2 in a worn state as viewed from the rear; FIG. 3 is a schematic diagram of a mechanical model when the earphone in FIG. 2 is worn; FIG. 4 is a schematic front view of another embodiment of an earphone according to the present application; FIG. 8 is a schematic configuration diagram of the left side of the earphone in FIG. 7; FIG. 8 is a schematic view from the front when the earphone in FIG. 7 is in a worn state; FIG. 8 is a schematic view of the earphone in FIG. 7 being worn, viewed from the rear; FIG. 8 is a schematic diagram of a dynamic model when the earphone in FIG. 7 is worn; FIG. 10 is a schematic plan view of still another embodiment of the earphone according to the present application; FIG. 11 is a schematic front view of still another embodiment of the earphone according to the present application; FIG. 4 is a schematic configuration diagram of still another embodiment of an earphone according to the present application; FIG. 15 is a schematic diagram of a mechanical model when the earphone in FIG. 14 is worn; FIG. 2 is a schematic surface configuration diagram of a skin contact area of a battery portion in the present application; 13A and 13B are schematic diagrams of various embodiments of the extension in FIG. 12; FIG. 4 is a schematic configuration diagram of still another embodiment of an earphone according to the present application; FIG. 9 is a schematic perspective view of a hook-shaped portion in FIG. 8; FIG. 20 is a schematic cross-sectional view of the elastic wire in FIG. 19 taken along a reference plane perpendicular to the extending direction of the hook-shaped portion; FIG. 11 is a schematic front view of still another embodiment of an earphone according to the present application; 1 is a schematic configuration diagram of an embodiment of a rotating shaft assembly according to the present application; FIG. FIG. 23 is a schematic configuration diagram before and after assembly of the rotary shaft assembly in FIG. 22; FIG. 4 is a schematic configuration diagram of another embodiment of a rotating shaft assembly according to the present application; 25 is an exploded schematic diagram of the embodiment of the rotating shaft assembly in FIG. 24; FIG. FIG. 26 is a schematic cross-sectional view of the rotary shaft assembly in FIG. 25; 25 is an exploded schematic diagram of another embodiment of the rotating shaft assembly of FIG. 24; FIG. FIG. 28 is a schematic cross-sectional view of the rotary shaft assembly in FIG. 27; It is a cross-sectional schematic block diagram in the XY plane of any embodiment of the earphone according to the present application. 1 is a schematic configuration diagram of an embodiment of an earphone according to the present application on a side facing away from the ear; FIG. 1 is a schematic configuration diagram of a side facing an ear part of an embodiment of an earphone according to the present application; FIG. 1 is a schematic configuration diagram of an embodiment of an earphone according to the present application observed from the top of a user's head; FIG. 1 is an exploded schematic configuration diagram of an embodiment of an earphone according to the present application; FIG. 1 is an exploded schematic configuration diagram of an embodiment of an earphone according to the present application; FIG. 1 is an exploded schematic configuration diagram of an embodiment of an earphone according to the present application; FIG. 1 is a schematic cross-sectional view of an embodiment of an earphone according to the present application; FIG. 1 is a schematic configuration diagram of a side facing away from an ear part of an embodiment of an earphone according to the present application; FIG. 1 is a schematic configuration diagram of an embodiment of an earphone according to the present application observed from the top of a user's head; FIG. 1 is an exploded schematic configuration diagram of an embodiment of an earphone according to the present application; FIG. 1 is a schematic block diagram of an embodiment of a core according to the present application, facing the motherboard; FIG. 1 is an exploded schematic configuration diagram of an embodiment of an earphone according to the present application; FIG. 1 is a schematic configuration diagram of an embodiment of an earphone according to the present application on a side facing away from the ear; FIG. 1 is a schematic configuration diagram of an embodiment of an earphone according to the present application observed from the top of a user's head; FIG. 1 is an exploded schematic configuration diagram of an embodiment of an earphone according to the present application; FIG. 1 is a schematic view of the side facing the core of an embodiment of a partition plate according to the present application; FIG. 1 is a schematic cross-sectional view of an embodiment of an earphone according to the present application; FIG. 1 is a schematic cross-sectional view of an embodiment of an earphone according to the present application; FIG. 1 is a schematic diagram of a sound field distribution of an acoustic dipole according to the present application; FIG. 1 is a schematic diagram of a sound field distribution combining an acoustic dipole and a baffle according to the present application; FIG. FIG. 2 is a schematic diagram of far-field sound pressure with and without baffles in an acoustic dipole according to the present application; FIG. 3 is a schematic diagram of a theoretical model when combining an acoustic dipole and a baffle according to the present application; FIG. 3 is a schematic diagram of the relationship between a parameter α and an included angle θ according to the present application; FIG. 3 is a schematic diagram of the relationship between an embodiment of an acoustic dipole according to the present application and an ear; 1 is a schematic configuration diagram of an earpiece side of an embodiment of an earphone according to the present application; FIG. 1 is a schematic configuration diagram of an embodiment of an earphone according to the present application; FIG. FIG. 4 is a schematic diagram of a frequency response curve of an embodiment of an earphone according to the present application; 1 is a schematic configuration diagram of a back cavity of an embodiment of an earphone according to the present application; FIG. FIG. 4 is a schematic diagram of a frequency response curve of an embodiment of an earphone according to the present application; 1 is a schematic configuration diagram of three embodiments of an earphone according to the present application, each in a worn state; FIG.

The present application will now be described in more detail with reference to the drawings and examples. It should be noted that the following examples are merely for the purpose of explaining the present application and do not limit the scope of the present application. Similarly, the following examples are only some examples of the present application, not all examples, and all other examples obtained by those skilled in the art without creative efforts included in the protection scope of

References in this application to "an embodiment" mean that the particular feature, structure, or property described in connection with the embodiment is included in at least one embodiment of this application. Those skilled in the art can explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

Referring to FIG. 1, FIG. 1 is a schematic front view of a user's ear profile as described herein.

As shown in FIG. 1, in the user's ear 100, in addition to the external auditory canal 101 and the conchal cavity 102 in the vicinity thereof, parts such as the conchal scapula 103 and the triangular fossa 104 are also positioned at a constant depth in the three-dimensional space. and volume, it is possible to realize the wearing of earphones. In other words, by rationally designing the structure of the earphone and using a portion of the user's ear 100 other than the ear canal 101, the wearing of the earphone and the transmission of mechanical vibration can be similarly realized. And it can "free up" the user's ear canal 101 and further improve the user's physical health, as well as reduce the probability of traffic accidents. Based on this, the present application mainly focuses on the upper half of the user's ear 100 (specifically, the conchal navula 103, triangular fossa 104, antihelix 105, navicular fossa 106, helix 107, etc.). It creatively provides an earphone that realizes the wearing of the earphone and the transmission of mechanical vibrations. Of course, additional areas such as the user's earlobe 108 may be utilized to improve the comfort and reliability of wearing the earphones. Furthermore, for convenience of explanation, some special physiological locations on the ear 100, e.g., the superior base of the ear LA connecting the anterior edge of the helix 107 and the head, the Darwin's node LB on the helix 107, the antihelix 105 The posterior auricular groove LC at one end proximate the earlobe 108 of the concha and towards the conchaal cavity 102 , the intertragic notch LD at one end of the conchaal cavity 102 proximate the earlobe 108 can be further shown. Of course, due to individual variability among users, physiological locations such as Darwin's nodes may not be evident or even present in some users' ears, but this may be the case in others. It does not mean that there is no such physiological location in the user's ear.

It should be noted that the external auditory canal extends to the eardrum with a certain depth, but for convenience of explanation, referring to FIG. It refers to the entrance, that is, the ear canal. Furthermore, the "front side of the ear" described in this application is a concept with respect to the "back side of the ear". refers to the head-facing side of the ear, both of which are intended for the user's ear.

Referring to FIGS. 2 to 5 together, FIG. 2 is a schematic front view of an embodiment of the earphone according to the present application, FIG. 3 is a schematic left side view of the earphone in FIG. 2, and FIG. FIG. 5 is a schematic view from the front when the earphone in FIG. 2 is in the worn state, and FIG. 5 is a schematic view from the rear when the earphone in FIG. 2 is in the worn state. It should be noted that the reason why the three directions of X, Y and Z of the earphone are shown in FIG. 2 is to mainly show three planes of XY, XZ and YZ to facilitate the corresponding explanation below. Thus, all directional (e.g., up, down, left, right, front, back, etc.) expressions in this application primarily refer to the relative position between each part in a particular pose (as shown in FIG. 2). This is to explain the relationship, exercise status, and the like. When the particular pose changes, the orientation representation changes accordingly.

As shown in FIGS. 2 and 3 , earphone 10 may include hook-shaped portion 11 , connecting portion 12 and holding portion 13 . The connecting portion 12 connects the hook-shaped portion 11 and the holding portion 13 so as to exhibit a curved shape in three-dimensional space when the earphone 10 is in the non-wearing state (that is, the natural state). In other words, the hook-shaped portion 11, the connecting portion 12, and the holding portion 13 are not flush in three-dimensional space. When the earphone 10 is installed in this manner, the hook-shaped portion 11 is mainly hung between the rear side of the user's ear and the head, as shown in FIGS. The holding portion 13 mainly comes into contact with the front side of the user's ear, so that the holding portion 13 and the hook-shaped portion 11 can cooperate to hold the ear. Illustratively, the connecting portion 12 can extend from the head to the outside of the head and cooperate with the hook-shaped portion 11 to provide the holding portion 13 with a pressing force against the front side of the ear. The holding part 13 can be pressed against a region where parts such as the turbinate sac, trigonometric fossa, antihelix, etc. are located by the action of the pressing force. Do not block the ear canal. Illustratively, when the earphone 10 is in the worn state, the projection of the holding part 13 on the user's ear is mainly within the helix range of the ear. Further, the holding part 13 may be positioned on the crown side of the user's head in the ear canal of the ear and may contact the helix and/or the antihelix. In this way, it is possible to avoid blocking of the ear canal by the holding part 13 and further free both ears of the user. Furthermore, the contact area between the holding part 13 and the ear can be increased to improve the wearing comfort of the earphone 10 .

It should be noted that, based on ANSI: S3.36, S3.25 and IEC: 60318-7 standards, simulators such as the GRAS 45BC KEMAR including the head and its (left, right) ears can be manufactured. The description in the present application that "the user wears the earphones" or "the earphones are in the state of being worn" may mean that the earphones are worn in the ears of the aforementioned simulator. Based on this, the "wearing state" described in the present application may be the normal wearing state after the earphone is worn on the ear of the aforementioned simulator. For convenience of explanation, the above-mentioned normal wearing state can be further divided into, for example, the normal wearing state shown in FIGS. 4 and 5 and the normal wearing state shown in FIGS. can be explained by Naturally, since there are individual differences among users, the actual wearing state of the earphone 10 may have a certain difference compared to the normal wearing state described above.

In the case of a user such as an adult male, the thickness of the ear is always thick (commonly called "thick ear"). 13, it is possible to ensure that the earphone 10 is as close as possible to the ear so as to improve the wearing stability of the earphone 10 by rational design, which will be exemplified below. In addition, the earphone 10 can avoid excessive pinching of the helix near the top of the ear, i.e. naturally bypass the top of the ear to improve the wearing comfort of the earphone 10. . Furthermore, in the case of users such as children, minors, and adult women, the thickness of their ears is always thin (commonly called "thin ears") compared to the thickness of the ears of adult males. In order to improve the adhesion to the user's ear when the earphone 10 is worn, the size of the connecting portion 12 may be reduced. may be an arcuate transition between

Additionally, earphone 10 may further include core 14 , motherboard 15 and battery 16 . The core 14 primarily converts electrical signals into corresponding mechanical vibrations (ie, "sound generation") and can be electrically connected to the motherboard 15, battery 16 by corresponding conductors. Motherboard 15 primarily controls sound generation of core 14 , and battery 16 primarily provides electrical energy for sound generation of core 14 . Of course, the earphone 10 according to the present application may further include sound transmission devices such as microphones, pickups, and communication devices such as Bluetooth (registered trademark) and NFC (Near Field Communication). may further include, they are electrically connected to the motherboard 15, the battery 16 by corresponding conductors to achieve corresponding functions.

Illustratively, the core 14 may be fixed to the holding portion 13, and when the earphone 10 is in the worn state, the core 14 can be brought into close contact with the user's ear by the action of the pressing force. Furthermore, when the earphone 10 is worn, the holding portion 13 is mainly positioned in front of the user's ear. Therefore, as shown in FIG. A function button (not shown in FIG. 2) may be provided to facilitate user interaction with the earpiece 10 . Based on this, the motherboard 15 may be installed on the holding portion 13 so as to shorten the wiring distance between the core 14 and other function buttons and the like and the motherboard 15 . Note that the holding portion 13 can include a core 14, a motherboard 15, function buttons, etc., and is positioned in front of the user's ear when the earphone 10 is worn. 16 may be installed on the hook-shaped part 11, and is mainly located between the back of the user's ear and the head when the earphone 10 is worn. When installed in this way, the capacity of the battery 16 is increased to improve the battery driving time of the earphone 10, and the weight of the earphone 10 is made uniform to improve the stability and comfort of wearing the earphone 10. can also

Further, the inventors of the present application have found from long-term research that the weight ratio between the total weight of the holding portion 13 and the total weight of the portion of the hook-shaped portion 11 corresponding to the battery 16 (hereinafter abbreviated as the battery portion) is 4. It has been found that it may be within :1, preferably within 3:1, more preferably within 2.5:1. As shown in FIGS. 2 and 3, in some embodiments, the total weight of the holding portion 13 is the self weight of the holding portion 13 and the weight of the structural components therein, such as the core 14 and the motherboard 15, and the battery. The total weight of the part is the weight of the battery part itself and the weight of the structural components therein, such as the battery 16 . Of course, as those skilled in the art will readily appreciate, the structural components in the holding portion 13 and the structural components in the battery portion can be changed according to design needs, and adjustments to the structural components in each position can be made. are all included in the technical solution of the present application, and do not affect the weight ratio, so the description is omitted here. At this time, the weight of the earphone 10 can be evenly distributed to both ends, and the user's ear can support the earphone 10 as a fulcrum when the earphone 10 is in the worn state, thereby making the earphone 10 does not slip off when worn, at least in a non-moving state. Naturally, the user's ear thus bears most of the weight of the earphone 10, and such prolonged wearing is likely to cause discomfort. Therefore, the structures of the hook-shaped portion 11, the connecting portion 12, the holding portion 13, and the like are made of a soft material (for example, polycarbonate, polyamide, acrylonitrile-butadiene-styrene copolymer) in order to improve the wearing comfort of the earphone 10. , silica gel, etc.). Furthermore, in order to improve the structural strength of the earphone 10, spring steel, titanium alloy, titanium-nickel alloy, chromium-molybdenum steel, aluminum alloy, copper alloy, etc. are used in the structures of the hook-shaped portion 11, the connection portion 12, the holding portion 13, and the like. of elastic wire may be installed.

In order to achieve both comfort and stability when wearing the earphone 10, the following improvements can be made.

1) The connecting part 12 and the battery part may choose the hard material, and the intermediate part between them may choose the soft material, or the intermediate part is "the soft material envelops the hard material". For example, when the user wears the earphone 10, the area where the hook-shaped part 11 touches the user is selected from the soft material, and the remaining area is selected from the hard material and different materials. is molded by a process such as two-color molding and coating of touch paint. The hard material includes polycarbonate (PC), polyamide (PA), acrylonitrile butadiene styrene (ABS), polystyrene (PS), high impact polystyrene, HIPS), Polypropylene (PP), Polyethylene Terephthalate (PET), Polyvinyl Chloride (PVC), Polyurethanes (PU), Polyethylene (PE), Phenol Formaldehyd e, PF ), polyether sulfone resin (Poly (ester sulfones), PES), polyvinylidene chloride (PVDC), polymethyl methacrylate (PMMA), polyether ether ketone (Poly-ether-ether-ketone, PEEK), etc., or mixtures of at least two thereof, or mixtures thereof with reinforcing agents such as glass fibers and carbon fibers. Further, the touch paint may specifically be a rubber touch paint, an elastic touch paint, a plastic elastic paint, or the like.

2) Since the earphone 10 is worn by the user, the earphone 10 always has a part of the area that contacts the user's skin (hereinafter referred to as the skin contact area), and the material of the skin contact area is generally It affects the comfort when the user wears the earphone 10 for a long time. Therefore, the skin contact area may choose the above soft material, and the rest area may choose the above hard material, and different materials are formed by processes such as two-color molding, painting with touch paint, and the like.

Shore hardness of the soft material may be 45-85A, 30-60D. Of course, both the soft material and the hard material can cover the elastic wire.

Furthermore, since different users may have significant differences in terms of age, gender, expression of gene regulation, etc., the ears and heads of different users may differ in size and shape. There is For this reason, the hook-shaped part 11 can rotate with respect to the connecting part 12, or the holding part 13 can rotate with respect to the connecting part 12, or a part of the connecting part 12 can rotate with respect to another part. It is possible to adjust the relative positional relationship of the hook-shaped part 11, the connection part 12, and the holding part 13 in the three-dimensional space, which helps the earphone 10 to suit different users. That is, the application range for the user is expanded on the mounting surface of the earphone 10 . For example, the connection part 12 is made of a deformable material such as a soft steel wire, and the user can fold the connection part 12 and rotate one part of it with respect to the other part so that the hook-shaped part 11 and the connection part 12. The relative position of the holding part 13 in the three-dimensional space can be adjusted to further meet the mounting demands. Furthermore, for example, a rotating shaft mechanism 121 is installed in the connecting portion 12, and the user similarly adjusts the relative positions in the three-dimensional space of the hook-shaped portion 11, the connecting portion 12, and the holding portion 13 by the rotating shaft mechanism 121, It can meet the wearing demand. The detailed structure of the rotating shaft mechanism 121 is within the scope of understanding of those skilled in the art, and will not be described in detail here. Furthermore, when the hook-shaped portion 11 and the connecting portion 12 are movably connected by the rotating shaft mechanism 121, the hook-shaped portion 11 is rotatable with respect to the connecting portion 12, and the holding portion 13 and the connecting portion 12 are rotatable. When movably connected by the shaft mechanism 121, the holding part 13 is rotatable with respect to the connecting part 12, and a part of the connecting part 12 and the other part are movably connected by the rotating shaft mechanism 121. , one part of the connecting part 12 is rotatable with respect to the other part.

Referring to FIG. 6, FIG. 6 is a schematic diagram of a mechanical model when the earphone in FIG. 2 is in a wearing state. Note that the YZ plane in FIG. 6 may be regarded as a plane on which the user's head is positioned, the ABC segment in FIG. 6 is regarded as a hook-shaped portion, the CD segment in FIG. The DEF segment in may be considered a retainer. Furthermore, point C in FIG. 6 can correspond to the region of the upper end portion of the ear portion close to the head portion in FIG.

As shown in FIGS. 4 to 6, when the earphone 10 is in the worn state, the ABC segment is mainly located behind the user's ear, and the DEF is mainly located in front of the user's ear. , the CD segment is mainly adapted to the thickness of the user's ear. At this time, the BC segment, the CD segment and the DEF segment may form a structure similar to a 'clip' so that the earphone 10 holds the user's ear and assumes the basic posture of wearing. Hereinafter, the state of receiving power when the earphone 10 is worn, its stability, etc. will be described by way of example.

As shown in FIG. 6, in the direction from the first connection point C between the hook-shaped portion 11 and the connection portion 12 to the free end of the hook-shaped portion 11 (for example, one end where point A in FIG. 6 is located) , the hook-shaped part 11 is bent toward the user's head, and the head contacts at the first contact point B and the second contact point A. As shown in FIG. The first contact point B is located between the second contact point A and the first connection point C. As shown in FIG. In addition, the first contact point B and the second contact point A are both defined points in the dynamic model, and when actually worn, there are differences in the physiological structures of different users' heads, ears, etc. Therefore, the position where the earphone 10 contacts the head when the earphone 10 is actually worn may correspond to the free end of the hook-shaped portion 11. It may be any point between the first contact point B. Of course, the AB segment may partially or fully abut the user's head, and its mechanical model and stabilizing principle in actual wearing are the same as the above technical solutions, The content can be easily understood and adjusted by the trader without creative efforts based on the technical solution of the present application, and the description is omitted here. When installed in this manner, the hook-shaped portion 11 has a lever structure with the first contact point B as a fulcrum. At this time, the free end of the hook-shaped portion 11 is pressed against the user's head, and the user's head provides an outward acting force on the head at the second point of contact A, the acting force being , is converted into an acting force directed from the first connecting point C to the head by the lever structure, and further provides the holding portion 13 with a pressing force against the front side of the ear portion via the connecting portion 12 .

It should be noted that the hook 10 is pressed against the user's head when the earphone 10 is in the worn state so that the user's head can provide an acting force toward the outside of the head at the second contact point A. The free end of the shaped portion 11 should satisfy at least the following conditions. The included angle between the free end of hook-shaped portion 11 and the YZ plane when earphone 10 is not worn is greater than the included angle between the free end of hook-shaped portion 11 and the YZ plane when earphone 10 is worn. The larger the included angle between the free end of the hook-shaped portion 11 and the YZ plane when the earphone 10 is not worn, the more firmly the free end of the hook-shaped portion 11 is pressed against the user's head when the earphone 10 is worn. Accordingly, the user's head can provide a greater effort directed outwardly of the head at the second point of contact A.

It should be noted that when the free end of the hook-shaped portion 11 is pressed against the user's head, in addition to providing an acting force directed outward of the user's head at the second contact point A, the hook-shaped portion At least the BC segment of portion 11 provides an additional pressure force against the rear side of the ear and cooperates with the pressure force provided by retainer 13 against the front side of the ear to provide the user's ear with a pressure force. can be obtained to obtain a pressing effect of "sandwiching from the front and back", and the stability of wearing the earphone 10 can be improved.

In addition, the battery 16 may be installed mainly on the AB segment of the hook-shaped portion 11, thereby resisting the weight of the structure of the holding portion 13 and the core 14 therein, the motherboard 15, etc., to prevent the earphone 10 from being worn. Improve the stability of As a matter of course, by configuring the surface of the hook-shaped portion 11 that contacts the user's ear and head to have a structure such as a matte surface or a textured surface, the hook-shaped portion 11 and the user's ear and head can be easily connected. By increasing the frictional force between the holding part 13 and the structure such as the core 14 and the mother board 15 therein, the mounting stability of the earphone 10 is improved by resisting the weight of the structure. Furthermore, the free end of the hook-shaped portion 11 (especially the region where the point A is located) is deformable, and when the earphone 10 is in the wearing state, the free end of the hook-shaped portion 11 is pressed against the user's head. By being deformed, the contact area between the free end of the hook-shaped portion 11 and the user's head is increased, and the comfort and stability of wearing the earphone 10 are improved. For example, the hook-shaped portion 11 adopts two-color molding, and the elastic modulus of its free end (especially the region where the point A is located) is made smaller than that of other regions to enhance the deformability of the free end. Further, for example, the free end of the hook-shaped part 11 is provided with holes 111 to present an openwork structure, so as to enhance the deformation performance of the free end. The holes 111 may be through holes and/or blind holes, the number of which may be one or more, the axial direction of which is between the free end of the hook-shaped portion 11 and the user's head. may be perpendicular to the contact surface between

In order to achieve both comfort and stability when wearing the earphone 10, the following improvements can be made:

1) A textured structure is formed in the skin contact area of the battery portion, and as shown in FIG. It may be a protrusion 112a, and as shown in FIG. 16(b), the texture structure may be a plurality of point-like protrusions 112b spaced apart and distributed along the longitudinal direction of the hook-shaped portion 11. , of course, the texture structure may also be grid-like.

2) As shown in FIG. 16(c), a semi-fusiform projection 112c extending along the longitudinal direction of the hook-shaped portion 11 may be provided in the skin contact area of the battery portion. With the free end of the hook-shaped portion 11 as a reference, the semi-spindle-shaped projection 112c extends toward the hook-shaped portion 11 along the direction (the direction indicated by the arrow in FIG. 16) approaching the free end of the hook-shaped portion 11. The height of the projection gradually increases and then gradually decreases. With this installation, the resistance between the semi-fusiform projection 112c and the user's skin can be minimized during the process of wearing the earphone 10 by the user. The resistance between the semi-fusiform 112c and the user's skin can be made as large as possible so as to avoid the detachment of the .

3) When the skin-contacting area of the battery section has a matte surface, it is preferable to use a material that is comfortable to the skin.

For the various protrusions described above, a material that is soft, has a large damping coefficient, and is comfortable to the skin may be selected. Further, according to the above various embodiments, the friction coefficient of the skin contact area of the battery part can reach 0.1-1.0.

Illustratively, the linear distance between the projection of the C point on the YZ plane and the projection of the EF segment on the YZ plane may be 10-17 mm, preferably 12-16 mm, more preferably 13-16 mm. 15 mm. The included angle between the projection of the BC segment on the XY plane and the projection of the DE segment on the XY plane is 0-25°, preferably 0-20°, more preferably 2-20°. Further, the included angle between the AB segment and the normal line passing through point B in the XY plane is 0-25°, preferably 0-20°, more preferably 2-20°. Further, in some embodiments, the linear distance between the projection of the C point on the XY plane and the projection of the EF segment on the XY plane may be 2-4 mm, preferably 2.8 mm. Of course, in some other embodiments, the linear distance between the projection of the C point in the XY plane and the projection of the EF segment in the XY plane may be 1-4 mm, preferably 2.5 mm. 5 mm. In this way, the connection part 12 can bypass the base of the ear of the ear part in the wearing state, thereby improving the wearing comfort of the earphone 10 .

Based on the above detailed description, the present application reasonably evenly distributes the weight of the earphone 10 so that the user's ear can support the earphone 10 as a fulcrum when the earphone 10 is in the worn state. In addition, by installing the connecting portion 12 between the hook-shaped portion 11 and the holding portion 13 of the earphone 10, the connecting portion 12 and the hook-shaped portion 11 can cooperate with each other when the earphone 10 is worn. It can provide the holding part 13 with a pressing force against the front side of the ear, and furthermore, when the earphone 10 is in the wearing state, it can be tightly attached to the user's ear. Such installation not only improves the stability of wearing the earphone 10 but also improves the reliability of the sound generation of the earphone 10 .

7 to 11 together, FIG. 7 is a schematic front view of another embodiment of the earphone according to the present application, FIG. 8 is a schematic left side view of the earphone in FIG. 7, and FIG. 10 is a schematic view of the earphone in FIG. 7 when it is in the worn state as seen from the front; FIG. 10 is a schematic view of the earphone in FIG. 7 in the worn state as seen from the rear; FIG. 8 is a schematic diagram of a dynamic model when the earphone in FIG. 7 is worn; Note that the YZ plane in FIG. 11 may be regarded as a plane on which the user's head is positioned. The ABC segment in FIG. 11 may be regarded as the hook-like portion, the CD segment in FIG. 11 may be regarded as the connector, and the DEF segment in FIG. 11 may be regarded as the retainer. Further, point C in FIG. 11 can correspond to the area of the upper end portion of the ear portion close to the head portion in FIG. 1 (the area indicated by the dashed frame C in FIG. 1).

As shown in FIGS. 4 to 6, when the earphone 10 is in the worn state, the ABC segment is mainly located behind the user's ear, and the DEF is mainly located in front of the user's ear. , the CD segment is mainly adapted to the thickness of the user's ear. At this time, the BC segment, the CD segment and the DEF segment may form a structure similar to a 'clip' so that the earphone 10 holds the user's ear and assumes the basic posture of wearing. Hereinafter, the state of receiving power when the earphone 10 is worn, its stability, etc. will be described by way of example.

Compared to the above embodiment, mainly in this embodiment, as shown in FIGS. 7 and 8, the hook-shaped portion 11 is generally closer to the holding portion 13, and when the earphone 10 is in the worn state, , as shown in FIGS. 9 and 10, the free end of the hook-shaped part 11 remote from the connecting part 12 is not pressed against the user's head, but acts behind the user's ear. differ in

As shown in FIG. 11, in the direction from the first connection point C between the hook-shaped portion 11 and the connection portion 12 to the free end of the hook-shaped portion 11 (for example, one end where point A in FIG. 11 is located) , the hook-shaped portion 11 is bent toward the rear side of the ear portion and contacts the rear side of the ear portion at the first contact point B, and the holding portion 13 contacts the front side of the ear portion at the second contact point. Contact with F. In the earphone 10, the distance between the first contact point B and the second contact point F along the extending direction of the connecting portion 12 in the natural state (that is, in the non-wearing state) is the same as the distance in the wearing state. It is smaller than the distance between the first contact point B and the second contact point E along the extending direction of the portion 12, thereby providing the holding portion 13 with a pressing force against the front side of the ear portion. In other words, in the earphone 10, the distance between the first contact point B and the second contact point F along the extending direction of the connecting portion 12 in the natural state is smaller than the thickness of the user's ear. Thus, the earphone 10 can clamp the user's ear like a "clip" when worn.

Further, a first connection line BC is provided between the first contact point B and the first connection point C, and the second contact point F and the second connection point E of the holding portion 13 and the connection portion 12 are connected. has a second connecting line EF between

Moreover, the hook-shaped part 11 may extend along the direction away from the connecting part 12, that is, the entire length of the hook-shaped part 11 may be extended, so that when the earphone 10 is in the worn state, In addition, the hook-shaped part 11 can also contact the rear side of the ear part at a third contact point A, the first contact point B connecting the first connection point C and the third contact point A and close to the first connection point C. In the earphone 10, the distance between the projections of the first contact point B and the third contact point A in the natural state on the reference plane (YZ plane in FIG. 11) perpendicular to the extending direction of the connecting part 12 is It is smaller than the distance between the projections of the first contact point B and the third contact point A in the state on the reference plane (YZ plane in FIG. 11) perpendicular to the extending direction of the connecting portion 12 . With this installation, the free end of the hook-shaped part 11 can not only press against the back of the user's ear, but also make the ABC segment present a C shape, and furthermore, the third contact point A is located in the region of the ear adjacent to the earlobe, and the hook-shaped portion 11 clamps the user's ear in the vertical direction (as indicated by arrow Z in FIG. can resist. In addition, the hook-shaped part 11 can not only pinch the user's ear vertically when its overall length is extended, but also increase the contact area between the hook-shaped part 11 and the user's ear. It can also increase the frictional force between the hook-shaped part 11 and the user's ear, thereby improving the wearing stability of the earphone 10 .

In order to achieve both comfort and stability when wearing the earphone 10, the following improvements can be made.

1) The hook-shaped part 11 needs to be adapted to the ears of different users, and the ears of different users have different sizes and different shapes, so the free end of the hook-shaped part 11 (e.g. ), when a user with small ears wears the earphone 10, it is likely to hang in the air. For this reason, as shown in FIGS. 7 and 8, in the hook-shaped portion 11, the outer diameter of the battery portion is larger than that of the other intermediate portions, that is, there is a step, and a gradual constriction structure is formed. 9 and 10, when the user wears the earphone 10, the hook-shaped part 11 can not only contact the user's ear at the first contact point B. , its free end may also be in contact with the user's ear at a third contact point A, i.e. the battery compartment is in any case in contact with the user's ear at the third contact point A. can be done. Obviously, said gradual waist structure may be distributed in multiple intervals along the length of the hook-like portion 11 in order to suit a wider group of users.

2) In the same case, the ratio of the length of the battery portion to the major diameter of the outer diameter also affects the adhesion between the hook-shaped portion 11 and the user's ear. Based on this, the inventors of the present application have found from long-term research that, as shown in FIGS. It has been found that it may preferably be up to 4:1. At this time, the hook-shaped part 11 can not only contact the user's ear at the first contact point B, but also its free end can contact the user's ear at the third contact point A. That is, the battery part can be tightly attached to the user's ear.

Referring to FIG. 12, FIG. 12 is a schematic plan view of still another embodiment of the earphone according to the present application.

Based on the above related discussion, as shown in FIG. 1 , the user's ear 100 generally has recessed areas such as the conchaal cavity 102 , the conchal navicular 103 , the triangular fossa 104 , and the navicular fossa 106 . However, it also generally has protruding regions such as antihelix 105, helix 107, and crus helix 109 accordingly. Based on the concave-convex structure of the ear 100, the earphone 10 is further tightly attached to the corresponding position of the ear 100 by means of elastic locking, elastic contact, latching, covering, etc., so that the earphone 10 can be worn. Comfort and reliability can be improved.

Further, with reference to FIGS. 2 to 5, each outer surface of holding portion 13 is defined as follows. 1) the side of the holding part 13 that contacts the user's skin is defined as the inner surface, 2) the side of the holding part 13 opposite to the inner surface in the X direction is defined as the outer surface, 3) the Z 4) the side of the holding portion 13 facing the negative Z direction is defined as the bottom surface; 5) the side facing the negative Y direction of the holding portion 13 is defined as the top surface; The facing side is defined as the rear surface. If the holding part 13 has a structure such as a cylinder or an elliptical cylinder instead of a cubic structure as shown in FIGS. can be done.

Compared to any of the above embodiments, mainly in this embodiment, the holding part 13 not only presses the front side of the user's ear, but also further extends to press the turbinate and/or turbinate of the ear. Or it can be held in the trigonometric fossa. When installed in this way, the holding part 13 is received by the helix of the ear at least in the extending direction of the connecting part 12, and when the earphone 10 is in the wearing state, the holding part 13 is prevented from folding outward, To improve the stability of wearing the earphone 10. - 特許庁

Illustratively, as shown in FIG. 12 , earphone 10 further includes an extension portion 17 connected to holding portion 13 . In the direction of extension of connecting portion 12 (as indicated by arrow X in FIG. 12), extending portion 17 and retaining portion 13 have a gap that is less than or equal to the thickness of the helix of the ear. So installed, when the earphone 10 is in the worn state, the extension 17 can enter into the turbinate and/or trigone fossa of the ear. At this time, since the conchal sac and/or the trigonometric fossa have a certain depth and volume in the three-dimensional space, when the extension part 17 enters into the conchal sac and/or the trigonometric fossa, the holding part 13 is hooked on the helix of the ear, thereby preventing the holding part 13 from folding outward when the earphone 10 is worn, and improving the stability of wearing the earphone 10. - 特許庁At the same time, the holding portion 13 is pressed against the front side of the ear portion by the action of the above-described pressing force, and the two cooperate with each other to help improve the stability of wearing the earphone 10 .

In some embodiments, as shown in (a) of FIG. 17 , the extension part 17 is mainly installed on the inner surface and/or the lower surface of the holding part 13, and the extension part 17 is attached to the ear shell after the earphone 10 is worn by the user. It may be configured to be able to enter the lumen 102 . At this time, the extending part 17 can be tightly attached to the concha 102 and the surrounding human tissue in an elastic contact manner.

In some other embodiments, as shown in FIG. 17(b), the extension part 17 is mainly installed on the inner surface of the holding part 13 so that the earpiece 10 is placed on the user after the earphone 10 is worn by the user. It may be configured to be able to enter into 103 . At this time, the extension part 17 can be tightly attached to the turbinate 103 and the surrounding human tissue in a manner of elastic locking and/or elastic contact.

In some other embodiments, as shown in FIG. 17(c), the extension 17 is mainly located on the upper surface of the holding portion 13 and is positioned within the triangular fossa 104 after the earphone 10 is worn by the user. may be configured to be able to enter the At this time, the extension part 17 can be tightly attached to the triangular fossa 104 and the surrounding human tissue in a manner of elastic locking and/or elastic abutment.

In some other embodiments, as shown in (d) or (e) of FIG. 17 , the extensions 17 are mainly installed on the top surface and/or the rear surface of the holding part 13 so that the earphone 10 can reach the user. It may be configured to be able to move into the scaphoid fossa 106 after being installed. At this time, the extension part 17 can be tightly attached to the fossa scaphoid 106 and the surrounding human tissue in a manner of elastic locking and/or elastic abutment.

In still some other embodiments, as shown in (f) of FIG. 17, the extension part 17 is mainly installed on the rear surface of the holding part 13, and after the earphone 10 is worn by the user, the ear part 100 is extended. It may be configured so that it can be bent and extended from the front side of the ear 100 to the rear side of the ear 100 so that the ear ring 107 can be hooked thereon. At this time, the extension part 17 can be tightly attached to the helix 107 and the human tissue around it in a latching and covering manner.

In still other embodiments, as shown in (g) of FIG. 17, the extension part 17 may be installed mainly on the hook-shaped part 11, for example, the battery part of the hook-shaped part 11 , and after the earphone 10 is worn by the user, it is configured to be bent and extended from the rear side of the ear portion 100 to the front side of the ear portion 100 so that the anti-helix 105 can be hooked. may At this time, the extension part 17 can be tightly attached to the antihelix 105 and the surrounding human tissue in a manner of latching and covering.

In still other embodiments, as shown in (h) of FIG. 17, the extension part 17 may be mainly installed on the hook-shaped part 11, for example, installed on the battery part, and the earphone 10 may be configured to be bent and extend from the rear side of the ear portion 100 to the front side of the ear portion 100 after being worn by the user so that the helix 107 can be hooked thereon. At this time, the extending part 17 can be tightly attached to the helix 107 and the human tissue around it in a latching and covering manner.

It should be noted that the structural parameters such as the size and shape of the extension 17 can be designed according to the matching requirements between it and the ear 100, and are not limited here. Further, extension 17 and corresponding structural components of ear bud 10 may be integrally molded, ie, non-removable. Of course, the extension 17 and corresponding structural components of the earphone 10 may be detachably connected. For example, a mounting hole is formed at a corresponding position of the holding portion 13 or the battery portion, and the extension portion 17 is fitted into the mounting hole. Further, for example, the extension part 17 is integrally molded with another elastic sleeve so that the extension part 17 is fitted in the corresponding position of the holding part 13 or the hook-shaped part 11 by the elastic sleeve.

Further, referring to FIG. 12, the dimension in the Y direction of the holding portion 13 may be 22-34 mm, preferably 24-28 mm, more preferably 26 mm, whereby , the holding portion 13 is pressed to the front side of the ear portion 100 . At this time, referring to FIG. 17, the extension part 17 may have a height dimension of 4 to 8 mm in the Z direction, and a length of 8 to 15 mm and a width of 8 to 15 mm when projected onto the XY plane. It may be 2-5 mm.

Referring to FIG. 13, FIG. 13 is a schematic plan view of another embodiment of the earphone according to the present application.

Compared to any of the above embodiments, the main difference is that in this example, the holding part 13 has a multi-stage structure to adjust the relative position of the core 14 in the overall structure of the earphone 10. . When the earphone 10 is installed in this manner, the ear canal is not blocked and the core 14 can be brought as close to the ear canal as possible when the earphone 10 is worn.

By way of example, as shown in FIG. 13(a), the holding section 13 may include a first holding stage 131a, a second holding stage 132a and a third holding stage 133a, which are connected in order. One end of the first holding stage 131a remote from the second holding stage 132a is connected to the connecting portion 12, and structural parts such as the core 14 and the motherboard 15 are mainly installed on the third holding stage 133a. Further, the second retaining step 132a is folded back in spaced relation to the first retaining step 131a, ie both exhibit a U-shaped configuration.

Exemplarily, as shown in FIG. 13(b), the holding section 13 may include a first holding stage 131b, a second holding stage 132b and a third holding stage 133b that are connected in order. One end of the first holding stage 131b remote from the second holding stage 132b is connected to the connecting portion 12, and structural parts such as the core 14 and the motherboard 15 are mainly installed on the third holding stage 133b. Further, the second retaining step 132b is bent with respect to the first retaining step 131b such that there is a space between the third retaining step 133b and the first retaining step 131b.

Referring to FIGS. 14 and 15 together, FIG. 14 is a schematic configuration diagram of still another embodiment of the earphone according to the present application, and FIG. 15 is a mechanical model schematic diagram when the earphone in FIG. 14 is in the worn state. is. Note that the YZ plane in FIG. 15 may be regarded as a plane on which the user's head is positioned, the BC segment in FIG. 15 may be regarded as a hook-shaped portion, and the CD segment in FIG. 15 may be regarded as a connecting portion. The DEF segment in FIG. 15 may be considered a retainer and the GH segment in FIG. 15 may be considered an extension. Furthermore, point C in FIG. 15 can correspond to the region of the upper end portion of the ear portion close to the head portion in FIG. 1 (the region indicated by the dashed frame C in FIG. 1).

Compared to any of the above embodiments, mainly in this embodiment, as shown in FIG. is smaller, and the extension 17 is connected to the retaining portion 13 with a gap that may be less than or equal to the thickness of the helix of the ear. When the earphone 10 is installed in this manner, the hook-shaped portion 11 and the connecting portion 12 hook the holding portion 13 to the front side of the user's ear, and the extending portion 17 extends to the ear concha of the ear. It can enter into the boat and/or trigonometric fossa, thereby avoiding the retaining part 13 from folding outward and improving the wearing stability of the earphone 10 . This embodiment will be exemplarily described by taking as an example that the extension 17 can enter into the turbinate of the ear.

As shown in FIG. 15 , point B hooks the recess on the rear side of the ear portion, and point C is used as a fulcrum. Avoid falling from the user's ear. At this time, the frictional force between the hook-shaped portion 11 and the ear can be increased to improve the stability of wearing the earphone 10 . Further, point H hooks the helix of the ear and point G is another fulcrum, so that the extending portion 17 resists the weight of the holding portion 13 and allows the holding portion 13 to move outward from the user's ear. Avoid wrapping around. At this time, the frictional force between the extending portion 17 and the ear can be increased to improve the stability of wearing the earphone 10 .

Based on the above related explanations, different users may have significant differences in terms of age, gender, expression of genetic regulatory traits, etc. Therefore, different users' ears and heads may have different sizes, Shapes may vary. Then, according to any of the above embodiments, in order to meet the wearing needs of a wider group of users and have good comfort and stability when different users wear the earphones 10, further The relevant structure of earphone 10 can be improved as follows.

Referring to FIG. 18, FIG. 18 is a schematic configuration diagram of yet another embodiment of an earphone according to the present application.

Compared to any of the above embodiments, the main difference is that in this example an elastic structural component 18 may additionally be installed at the free end of the hook-like portion 11, as shown in FIG. do. The elastic structural part 18 may be made of the soft material described above, which has a certain structural strength and is comfortable when the user wears the earphone 10 . Furthermore, the elastic structural component 18 may have a tubular shape and may be detachably fitted to the free end of the hook-shaped portion 11 . At this time, the elastic structural part 18, as a part of the earphone 10, helps the user attach or detach according to the actual use demand. The user-contacting portion of the elastic structural component 18 may be provided with the textured structure, the matte surface.

Illustratively, the resilient structural component 18 may include a first tubular portion 181 and a second tubular portion 182 that are integrally connected. The first tubular part 181 and the second tubular part 182 are curved, and the specific bending angle can be reasonably designed according to the actual use demand. Naturally, the elastic structural part 18 may also have a certain memory property at least at its bending point, so that the user can flexibly adjust said bending angle by bending, folding or the like. With this installation, when the user wears the earphone 10, the elastic structural part 18 can hook the recess at the base of the user's ear from the rear side of the ear to prevent the earphone 10 from falling off.

Furthermore, both the first tubular portion 181 and the second tubular portion 182 may have a hollow tubular shape, may communicate with each other or may not communicate with each other, and both may be hook-shaped portions. The free end of 11 may be fitted. This embodiment will exemplify a case where the first tubular portion 181 and the second tubular portion 182 do not communicate with each other in order to improve the structural strength at the bending portion of the elastic structural component 18 . The length (L1) of the first tubular part 181 and the length (L2) of the second tubular part 182 may not be equal, so that the user can select the first tubular part according to the actual usage demand. The actual overall length of the hook portion 11 and the elastic structural component 18 is adjusted by choosing whether one of the portion 181 and the second tubular portion 182 is fitted to the free end of the hook portion 11 . At this time, the elastic structural component 18 may partially or completely cover the battery portion. Referring to FIG. 18, this embodiment will exemplify a case where the elastic structural part 18 partially covers the battery part, for example, the elastic structural part 18 covers half of the battery part. do.

From long-term research, the inventors of the present application found that the difference between the length (L1) of the first tubular portion 181 and the length (L2) of the second tubular portion 182 is 2.0, as shown in FIG. In the range of ~8.0 mm, it has been found that the elastic structural component 18 can firmly hook the root of the ear recess behind the ear when different users wear the earphones 10 . Preferably, said length difference is in the range of 3.5 to 7.0 mm.

Based on the above detailed description, when the elastic structural part 18 is fitted on the free end of the hook-shaped part 11, the outer diameter of the battery part is also increased, i.e. the actual outer diameter of the free end of the hook-shaped part 11 is increased. The diameter can be changed, thus better matching the opening angle of the outer auricle of different user groups, especially the "protruding ear", to solve the problem of rotating and folding outwards of the earphone 10 . Based on this, by designing the wall thickness of the first tubular portion 181 and/or the second tubular portion 182, a step is formed between the elastic structural component 18 and the battery portion, and the gradual A technical effect similar to a waist can be achieved.

Referring to both FIGS. 19 and 20, FIG. 19 is a perspective schematic configuration diagram of the hook-shaped portion in FIG. 8, and FIG. 20 is a reference plane perpendicular to the extending direction of the hook-shaped portion of the elastic wire in FIG. It is a cross-sectional schematic configuration diagram along the. The elastic wire shown in FIG. 19 is generally not visible because it is fitted in a hook-like portion or the like. Show visible.

Based on the above-mentioned related description, in order to improve the structural strength of the earphone 10, the hook-shaped portion 11, the connecting portion 12, the holding portion 13, and other structures are made of spring steel, titanium alloy, titanium-nickel alloy, chromium-molybdenum steel, or the like. Such an elastic wire 115 may also be installed. Generally, the cross-section of elastic wire 115 may be circular.

As shown in Figures 19 and 20, the elastic wire 115 may be of flat sheet construction to have different deformation capabilities in each direction. The cross section of the elastic wire 115 may be a rectangle with rounded corners as shown in FIG. 20(a) or an ellipse as shown in FIG. 20(b). Illustratively, the ratio of the long side (or long axis, L3) of elastic wire 115 to its short side (or short axis, L4) is in the range of 4:1 to 6:1, preferably 5 :1. Furthermore, as shown in (c) of FIG. 20, when the cross section of the elastic wire 115 is a rectangle with rounded corners shown in (a) of FIG. , so that the elastic wire 115 can store a certain elastic potential energy. For example, the elastic wire 115 is in a curled state in the original state, and after being stretched straight, the elastic wire 115 assumes an arc shape in the short axis direction by the pressing process, so that the elastic wire 115 has a certain internal stress. can be stored to maintain a flat shape, and become a "memory wire", and when subjected to a small external force, return to the crimped state, thereby allowing the hook-shaped portion 11 to adhere to and cover the human ear. . Illustratively, the ratio of the arc height (L5) of elastic wire 115 to its long side (L3) may be in the range of 0.1 to 0.4.

In this way, by the action of the elastic wire 115 having such a flat sheet structure, the hook-shaped portion 11 not only has high rigidity in the X direction, but also the hook-shaped portion 11 and the holding portion 13 cooperate with each other. The user's ear portion 100 can be elastically pinched, and the hook-shaped portion 11 is curved along its longitudinal direction and has strong elasticity. It can be elastically pressed against the head.

Referring to FIG. 21, FIG. 21 is a schematic front view of yet another embodiment of an earphone according to the present application.

Compared to any of the above embodiments, mainly in this embodiment, as shown in FIG. For example, the connecting portion 12 is mainly connected to the lower edge of the holding portion 13, so that the upper half portion of the holding portion 13 (indicated by the dashed frame in FIG. 21) is not constrained by the connecting portion 12 and the retaining portion 13 compensates for the outward reversal moment against the ear portion 100 .

22 and 23 together, FIG. 22 is a schematic configuration diagram of an embodiment of the rotating shaft assembly according to the present application, and FIG. 23 is a schematic configuration diagram before and after assembly of the rotating shaft assembly in FIG. In addition, although the rotating shaft assembly shown in FIG. 22 is generally not visible because it is fitted inside a connecting portion or the like, for convenience of explanation, for example, a part of the material covering the rotating shaft assembly is removed so that the external appearance is shown as visible from

As shown in FIG. 22 , the rotating shaft mechanism 121 may be configured as a bendable metal dome, one end of which is connected to the hook-shaped portion 11 and the other end of which is part of the connecting portion 12 . For example, the metal dome is integrally connected with the connecting part 12 and connected to the hook-like part 11 by a metal insert injection molding process. When installed in this manner, the metal dome is deformed by the action of the external force F, whereby the hook-shaped portion 11 is placed in the first use state (for example, shown by solid lines in FIG. 22) and the second state with respect to the holding portion 13. 22), ie the hook-shaped part 11 is rotatable with respect to the holding part 13. FIG.

Illustratively, the metal dome may include a first deformation portion 1211, a second deformation portion 1212 and an intermediate connection portion 1213, as shown in FIG. Before attaching the metal dome, the first deformation portion 1211 and the second deformation portion 1212 are bent and connected to both ends of the intermediate connection portion 1213, respectively, as shown in FIG. 23(a). Furthermore, after attaching the metal dome, as shown in FIG. The free end is directly hinged to form a triangular structure and curved along the length of the hook-shaped portion 11 or further connected to an elastic wire in the hook-shaped portion 11 . When installed in this way, the metal dome can store a certain elastic potential energy after being attached, and is easily deformed under the action of the external force F.

Furthermore, before attaching the metal dome, as shown in FIG. It may be larger than the length (L7) of 1213. L3 and L4 can satisfy the following relationship: 0.1≤L7/L6≤0.6. Of course, the thickness of the metal dome may be 0.1-0.8 mm.

24 to 28 together, FIG. 24 is a schematic configuration diagram of another embodiment of the rotating shaft assembly according to the present application, and FIG. 25 is an exploded schematic configuration diagram of the embodiment of the rotating shaft assembly in FIG. 26 is a schematic cross-sectional view of the rotating shaft assembly in FIG. 25, FIG. 27 is an exploded schematic view of another embodiment of the rotating shaft assembly in FIG. 24, and FIG. 2 is a schematic cross-sectional configuration diagram of a rotating shaft assembly in FIG.

Illustratively, the rotating shaft mechanism 121 may include a first connecting base 1214, a second connecting base 1215, a rotating shaft 1216 and a resilient assembly 1217, as shown in FIG. The first connecting base 1214 may be part of the connecting portion 12 and the second connecting base 1215 may be connected to the hook-like portion 11 (or the metal elastic wire 115 therein), of course. However, it may be part of the hook-shaped portion 11 . Furthermore, the first connection base 1214 and the second connection base 1215 are connected by the rotating shaft 1216, so that the first connection base 1214 and the second connection base 1215 can rotate relatively. Furthermore, the hook-shaped portion 11 is rotatable with respect to the connecting portion 12 and the holding portion 13 by a rotating shaft mechanism 121 . As shown in FIGS. 25-28, the elastic assembly 1217 connects the first connecting base 1214 and the second connecting base 1215 to maintain the state after the hook-shaped portion 11 rotates with respect to the holding portion 13. is configured to elastically abut between the With this installation, when the user wears the earphone 10 , the hook-shaped portion 11 can be adjusted to be in closer contact with the ear 100 , thereby improving the comfort and stability of wearing the earphone 10 .

In some embodiments, as shown in FIGS. 25 and 26, the second connection base 1215 can be partially inserted within the first connection base 1214, such that the pivot 1216 is positioned at the second It can be drilled into one connection base 1214 and the second connection base 1215 at the same time, and also realizes a rotational fit. Furthermore, the first connection base 1214 may be provided with a receiving cavity 12141 open at one end, and the elastic assembly 1217 may include an elastic member 12171 and an abutment member 12172 . The elastic member 12171 is installed in the accommodation cavity 12141, one end of the contact member 12172 partially extends into the accommodation cavity 12141 and contacts the elastic member 12171, and the other end of the contact member 12172 is the second end. 2 connecting base 1215 .

In addition, in order to configure the elastic assembly 1217 to elastically abut between the first connection base 1214 and the second connection base 1215, after the assembly of the rotation shaft mechanism 121 is completed, the elastic member 12171 is , may be in compression. Based on this, when the user wears the earphone 10 , especially when the user's ear part 100 is large, the hook-shaped part 11 and the elastic wire 115 therein may be subjected to force to rotate with respect to the holding part 13 . or tend to rotate, further rotating the second connecting base 1215 with respect to the first connecting base 1214 and compressing the elastic member 12171 by the abutment member 12172 . At this time, according to Newton's third law, the elastic member 12171 reacts to the contact member 12172 and contacts the second connection base 1215, so that at least the hook-shaped portion 11 is further closely attached to the user's ear 100. Let

In some other embodiments, as shown in FIGS. 27 and 28, one end of the abutment member 12172 remote from the elastic member 12171 may be configured as a sphere, column, or the like, and the second connection A plurality of grooves distributed along the circumferential direction of the rotating shaft 1216 may be installed at one end of the base 1215 remote from the elastic wire 115 . The contact member 12172 can be partially engaged in the groove by the action of the elastic force of the elastic member 12171 . In other words, when the hook-shaped part 11 rotates to different angles with respect to the holding part 13, the abutting member 12172 can engage in different grooves, thereby achieving the purpose of multi-step adjustment.

Referring to FIG. 29, FIG. 29 is a cross-sectional schematic configuration diagram in the XY plane of an arbitrary embodiment of the earphone according to the present application.

In some embodiments, the earbud 10 may be an air-conducting earbud, which is taken as an example to exemplify its holder and structural components such as cores and motherboards therein.

As shown in FIG. 29, the holding portion 13 may include an inner case 131c and an outer case 132c, which are connected to form a cavity structure that accommodates structural components such as the core 14 and the motherboard 15. FIG. In addition, when the user wears the earphone 10 , the inner case 131 c mainly contacts the user's ear 100 . At this time, since a large number of electronic components with different sizes and shapes are integrated on the mother board 15, the inside of the cavity of the holding part 13 is extremely complicated, and thus the acoustic performance of the earphone 10 is likely to be affected. For this reason, in this embodiment, a partition plate 133 c is installed inside the holding portion 13 to partition the core 14 and the mother board 15 to form a cavity 200 c independent of the mother board 15 . Cavity 200c may have smoother inner cavity walls. With this installation, the cavity 200c is not affected by the motherboard 15 and electronic components thereon, which can effectively improve the acoustic performance of the earphone 10. FIG.

Illustratively, the partition plate 133c may be directly connected to the core 14, for example, by gluing the two together, they directly form the cavity 200c, surrounded by the partition plate 133c and the core 14. The inner wall of the cavity 200c can be avoided as much as possible from sharp structures such as right angles, cusps and the like. Further, the partition plate 133c and the edge of the core 14 may be further wrapped with an elastic member (not shown) so as to form an interference fit with the inner wall of the retaining portion 13 to achieve an acoustic seal.

Based on the above related description, the earphone 10 can clamp the ear when worn. To improve the stability and comfort of wearing, the earphone 10 can elastically clamp the ear.

For example, as shown in FIG. 30 , the hook-shaped portion 11 may include an elastic portion 112 connected to the connecting portion 12 and a battery portion 113 located at the free end of the hook-shaped portion 11 . At least the battery 16 of the earphone 10 is installed in the battery portion 113, and the battery 16 may be installed in a columnar shape. To facilitate installation of structural components such as battery 16, battery portion 113 may be made of a rigid material such as rigid plastic. Of course, in order to balance wearing comfort, at least the area of the battery section 113 that contacts the user's skin may be provided with an elastic coating layer or sprayed with an elastic paint. Furthermore, since the elastic portion 112 has a certain degree of elastic deformation performance compared to the battery portion 113 , the hook-shaped portion 11 is deformed by the action of an external force and displaced relative to the holding portion 13 . and the holding portion 13 cooperate to elastically clamp the ear portion. In this way, in the process of wearing the earphone 10, the user first applies a little force to pull the hook-shaped portion 11 from the holding portion 13 so that the ear can be easily inserted between the holding portion 13 and the hook-shaped portion 11. You can shift. When worn in an appropriate position and released, the earphone 10 can elastically pinch the ear. Of course, the position of the earphone 10 on the ear can be further adjusted according to the actual wearing situation.

The ratio between the length of the elastic portion 112 and the length of the hook-shaped portion 11 may be 48% or more, preferably the aforementioned ratio may be 60% or more. The radial dimension in any direction in the cross section of the elastic portion 112 may be 5 mm or less, preferably the aforementioned radial dimension may be 4 mm or less. In this way, the elastic part 112 may be configured with an elongated structure to have better elastic deformation performance, so that the earphone 10 can better elastically clamp the ear part. In addition, by making the cross-sectional area of the elastic part 112 as small as possible, it is possible to leave a mounting space for myopic or hyperopic glasses or smart glasses such as AR, VR, MR, etc., and to meet other user's needs for wearing. can be done. Further, since the hook-shaped portion 11 is mainly hung between the user's head and ear, by making the cross section of the elastic portion 112 circular or oval, at least the elastic portion 112 can be attached to the ear and/or ear. Or it can better contact the head and be as close as possible to the boundary between the ear and the head, further improving the stability of the wearing.

By making the cross-sectional area of at least a part of the battery section 113 larger than the maximum cross-sectional area of the elastic section 112, the battery section 113 can install a larger capacity battery 16 to increase the battery life of the earphone 10. can be increased. In some embodiments, the battery unit 113 may be installed in a columnar shape, and the ratio of length to outer diameter may be 6 or less.

Based on the above related description, in the hook-shaped portion 11, the elastic portion 112 and the battery portion 113 have different uses, so there may be a large difference in cross-sectional area between them. Therefore, the hook-shaped portion 11 may further include a transition portion 114 positioned between the elastic portion 112 and the battery portion 113 , and the cross-sectional area of the transition portion 114 is equal to the cross-sectional area of the elastic portion 112 and the battery portion 113 . cross-sectional area and gradually increases from the elastic portion 112 to the battery portion 113 . In this way, not only is the uniformity in appearance of the hook-like portion 11 improved, but the hook-like portion 11 can also be brought into better contact with the ear and/or the head. Furthermore, there are generally a plurality of protuberances such as a turbinate protuberance corresponding to the turbinate and a conchal cavity protuberance corresponding to the conchal cavity on the rear side of the ear. Since the cavity prominence is generally closer to the lobe than the concha navicular prominence, the side of the transition 114 facing the ear can be provided with a conforming indentation corresponding to the posterior contour of the ear, and a hook. The shape 11 serves to effectively contact the rear side of the ear, for example the aforementioned conforming indentation contacts the conchal prominence. Simply put, the protuberance on the rear side of the ear is avoided by the above-mentioned following recess, the protuberance on the rear side of the ear avoids pushing up the hook-shaped portion 11, and the hook-shaped portion 11 is pushed up by the ear. keep in good contact. In some embodiments, regarding the transition portion 114 , in a reference cross section along the central axis of the battery portion 113 , the radius of curvature of the profiling recess described above is smaller than the radius of curvature of the other side of the transition portion 114 opposite to the ears. i.e., the degree of curvature of the profiling indentation may be greater, which makes it easier for the hook-like portion 11 to adapt to various ridges and indentations behind the ears, while the other regions of the transition portion 114 are Mainly to make the transition between the elastic part 112 and the battery part 113 as smooth as possible, and to improve the appearance uniformity of the hook-shaped part 11 .

As is well known, in the fields of medicine, anatomy, etc., three basic cutting planes of the body, the sagittal plane, the coronal plane and the horizontal plane, and the sagittal axis ( Three basic axes can be defined: the Sagittal Axis, the Coronal Axis and the Vertical Axis. The sagittal plane refers to a plane perpendicular to the ground cut along the anteroposterior direction of the body, which divides the body into left and right parts. The coronal plane refers to a plane perpendicular to the ground cut along the left-right direction of the body and is the plane that divides the body into two parts, front and rear. A horizontal plane is a plane parallel to the ground cut along the vertical direction of the body, and is a plane that divides the body into upper and lower parts. Accordingly, the sagittal axis refers to the axis passing perpendicularly through the coronal plane along the anterior-posterior direction of the body, the coronal axis refers to the axis passing perpendicularly through the sagittal plane along the lateral direction of the body, A vertical axis refers to an axis that passes vertically through a horizontal plane along the body's superior-inferior direction.

Based on the above related explanation, the weight of the earphone 10 and its distribution affect the wearing stability to some extent. The weight of the hook-shaped portion 11 may be mainly concentrated on the battery portion 113 . In some embodiments, the weight ratio between the total weight of holding part 13 and the total weight of battery part 113 may be 4 or less. As shown in FIG. 31, when viewed from the side of the holding portion 13 facing away from the ear portion in the worn state, the battery portion 113 is at least partially positioned in front of the user from the first reference plane (denoted as RP1). The first reference plane is parallel to the coronal plane through the point of contact of the retainer 13 with the ears (denoted CP0). In this way, it helps to reduce the moment of the center of gravity of the battery unit 113, for example, to the base of the ear. Improve the stability of In addition, the battery section 113 passes through the first position point (denoted as CP1) closest to the top of the user's head along the vertical axis in the elastic section 112 and passes through a second reference plane (denoted as CP1) parallel to the coronal plane. RP2) may be intersected. Further, the hook-shaped portion 11 and the inner edges of the connection portion 12 toward the ear portion have a second position point (referred to as CP2) farthest from the point of contact with the ear portion of the holding portion 13, and the battery portion 113 is , may intersect a third reference plane (denoted RP3) parallel to the coronal plane through the second location point. The second position point may be on the connecting portion 12 or on the boundary line between the hook-shaped portion 11 and the connecting portion 12, which will be exemplified below. In this way, the center of gravity of the battery section 113 and the center of gravity of the holding section 13 are located on the same side of the first reference plane, further improving the mounting stability.

For convenience of explanation, as shown in FIG. 30, the holding part 13 may have a thickness direction, a longitudinal direction, and a height direction that are orthogonal to each other, and are denoted by 'X', 'Y', and 'Z', respectively. can do. The thickness direction described above is defined as the direction in which the holding portion 13 approaches or separates from the ear portion in the worn state, and the longitudinal direction described above is the direction in which the holding portion 13 approaches or separates from the front of the user in the worn state. , and the aforementioned height direction is defined as the direction in which the holding part 13 approaches or separates from the top of the user's head in the wearing state. In the mounted state, said height direction may be parallel to said vertical axis, and said thickness direction and said longitudinal direction may be parallel to said horizontal plane.

In some embodiments, for example, as shown in FIGS. 30 to 32, the positive angle in a reference plane (eg, the plane in which YZ is located) perpendicular to the thickness direction of the segment adjacent to the connecting portion 12 of the hook-shaped portion 11 The projection may partially overlap the orthographic projection of the holding part 13 on the aforementioned reference plane. The segment of the hook-shaped portion 11 adjacent to the connection portion 12 may be the elastic portion 112 having much higher elastic deformation performance than the battery portion 113, is positioned between the battery portion 113 and the connection portion 12, and It may be a rigid structure whose elastic deformation performance is not significantly different from that of the battery portion 113 . In this way, the holding portion 13 and the hook-shaped portion 11 can not only elastically clamp the ear portion from the front side of the ear portion and the rear side of the ear portion, but the clamping force is mainly expressed as a compressive stress. , further improving the stability and comfort of wearing. In addition, the center of gravity of the battery section 113 is helpful in bringing the center of gravity closer to the user's face, further improving the stability of wearing. Of course, in some other embodiments, the thickness direction of the hook-like portion 11 is perpendicular to the thickness direction, for example the earphones shown in FIGS. 4 and 5, and also for the earphones shown in FIGS. The orthographic projection on the reference plane and the orthographic projection on the aforementioned reference plane of the holding part 13 may deviate from each other.

By way of example, as shown in FIGS. 30 and 31, the orthographic projection of the elastic portion 112 on the reference plane and the orthographic projection of the holding portion 13 on the reference plane may partially overlap. The orthographic projection on the reference plane and the orthographic projection of the holding part 13 on the reference plane may deviate from each other. In this way, the holding portion 13 and the hook-shaped portion 11 are useful for elastically clamping the ear portion from two front and rear directions.

Further, the radius of curvature of the edges of the elastic portion 112 and the transition portion 114 on the side facing the ears of the orthographic projection on the reference plane is It may be gradually increased and then gradually decreased. By first gradually increasing the radius of curvature of the aforementioned edge, the hook-shaped portion 11 can adhere better to the contour shape of the rear side of the ear, and by further decreasing, the battery portion 113 of the hook-shaped portion 11 Further, the battery portion 113 approaches toward the holding portion 13, thus helping the hook-shaped portion 11 to hook the rear side of the ear portion, further stabilizing wearing. improve sexuality. Further, the radius of curvature of the aforesaid edges may increase and then decrease in a continuously changing manner, or may increase and then decrease in a stepwise manner; You can also combine different methods. For example, the aforementioned edge may include a plurality of segments having radii of curvature, and in the direction from the connecting portion 12 to the battery portion 113, the radii of curvature of the plurality of segments may gradually increase and then gradually decrease, which is It may be called a gradual change. In order to improve mounting stability, the segment having the largest radius of curvature among the plurality of segments may partially overlap the orthographic projection of the holding part 13 on the reference plane.

Illustratively, the edges of the elastic portion 112 and the transition portion 114 on the side facing the ears of the orthographic projection on the reference plane start from the connection point between the elastic portion 112 and the connection portion 12 (denoted as CP3). and a first segment (denoted as 11A) whose end point (for example, CP1) is the highest point in the height direction of the elastic portion in the worn state. The radius of curvature of the first segment may be between 8 mm and 10 mm. The starting point of the first segment may overlap with the second position point or may be further from the connecting part 12 than the second position point, which will be exemplified below. Further, the aforementioned edges of the elastic portion 112 and the transition portion 114 may further comprise a second segment (denoted 11B), the starting point of the second segment being the ending point of the first segment, The end point of the second segment (denoted as CP4) may have a distance of 8 mm to 11 mm from the highest point in the longitudinal direction, and a distance of 7 mm to 7 mm from the highest point in the height direction. It may be 10 mm. The radius of curvature of the second segment may be between 9 mm and 12 mm. Furthermore, the aforementioned edges of the elastic portion 112 and the transition portion 114 may further comprise a third segment (denoted 11C), the starting point of the third segment being the ending point of the second segment, The end point of the third segment (denoted as CP5) may be at a distance of 9 mm to 12 mm from the highest point in the longitudinal direction, and at a distance of 19 mm to 12 mm from the highest point in the height direction. It may be 21mm. The radius of curvature of the third segment may be between 29 mm and 36 mm. Furthermore, the aforementioned edges of the elastic portion 112 and the transition portion 114 may further comprise a fourth segment (denoted 11D), the starting point of the fourth segment being the ending point of the third segment, The end point of the fourth segment (denoted as CP6) may be at a distance of 7 mm to 10 mm from the highest point in the longitudinal direction, and at a distance of 25 mm to 25 mm from the highest point in the height direction. It may be 32mm. The radius of curvature of the fourth segment may be between 19 mm and 25 mm. Further, the aforementioned edges of the elastic portion 112 and the transition portion 114 may further comprise a fifth segment (denoted 11E), the starting point of the fifth segment being the ending point of the fourth segment, The end point of the fifth segment (denoted as CP7) may have a distance of 2 mm or less from the highest point in the longitudinal direction, and a distance of 30 mm to 38 mm from the highest point in the height direction. may be The radius of curvature of the fifth segment may be between 9 mm and 13 mm. At this time, the copying recess may be provided in the fifth segment, and the radius of curvature of the copying recess may be smaller than the radius of curvature of the fourth segment.

The end point of the second segment, that is, the start point of the third segment may be the intersection between the orthographic projection of the elastic portion 112 on the reference plane and the upper edge of the holding portion 13 . Similarly, the end point of the third segment, ie the start point of the fourth segment, may be another intersection point between the orthographic projection of the elastic portion 112 on the reference plane and the lower edge of the holding portion 13 . At this time, all orthographic projections of the third segment on the reference plane can be accommodated within the holding portion 13 . Further, as shown in FIG. 42, the boundary between elastic portion 112 and transition portion 114 may be located in the fourth segment. Accordingly, the segment of the hook-shaped portion 11 adjacent to the connecting portion 12 has a starting point at the boundary between the hook-shaped portion 11 and the connecting portion 12 and an end point at the orthographic projection of the elastic portion 112 on the reference plane. and the lower edge of the holding part 13.

As shown in FIG. 33, the hook-shaped portion 11 may include an elastic wire 115, a battery housing chamber 1161 and a lead wire 117, one end of the elastic wire 115 is connected to the connecting portion 12 and the other end is connected to the battery housing chamber. 1161 , the lead wire 117 can extend from the battery compartment 1161 to the connecting portion 12 and the holding portion 13 along with the elastic wire 115 . The hook-shaped portion 11 has a certain elastic deformation performance due to the elastic wire 115 , the battery storage chamber 1161 stores at least the battery 16 , and the lead wire 117 connects at least the battery storage chamber 1161 and the electronic components in the holding portion 13 . to provide an electrical connection between Furthermore, the hook-shaped portion 11 may further include an elastic covering 118 such as silica gel, and the elastic covering 118 covers at least the elastic wire 115 and the lead wire 117 to improve appearance quality and wearing comfort. Let The cross-sectional area of the battery storage chamber 1161 may be larger than the sum of the cross-sectional areas of the elastic portion 112 consisting of the elastic wire 115 and the elastic cover 118, preferably the elastic wire 115, the lead wire 117 and the elastic cover 118. It may be larger than the sum of the areas.

Moreover, the hook-like portion 11 may further include a transition piece 1162 connected to the elastic wire 115 such that the elastic wire 115 is connected to the battery compartment 1161 by the transition piece 1162 . For example, the transition piece 1162 and elastic wire 115 are formed by a metal insert injection molding process, and the battery compartment 1161 is configured in a tubular structure open at one end to accommodate structural components such as the battery 16, and the transition. Piece 1162 is engaged with the open end of battery compartment 1161 . Of course, in some other embodiments, the transition piece 1162 and the battery compartment 1161 may be integrally formed, and one end of the battery compartment 1161 remote from the transition piece 1162 is configured open. and may be sealed with a lid plate. The cross-sectional area of the transition piece 1162 may gradually increase along the length of the hook-shaped portion 11 in the direction away from the connecting portion 12 . Correspondingly, the elastic covering 118 can further cover the transition piece 1162 . The conforming recess may be formed in the transition piece 1162 and exposed by the elastic covering 118 . In other words, on the side of the transition piece 1162 facing the ear portion, a tracing recess corresponding to the rear contour of the ear portion may be provided. may be smaller than the radius of curvature of the other side of the transition piece 1162 facing away from the ear, i.e., the degree of curvature of the profiling indentation is greater, so that the transition portion 114 is positioned on the rear side of the ear. Avoid bumps.

Based on the above related description, as shown in FIG. 42 , in the hook-shaped portion 11, the elastic portion 112 may correspond to the portion of the elastic wire 115 exposed from the connecting portion 12 and the transition piece 1162, and is mainly elastic. The battery section 113 may correspond to a portion of the battery compartment 1161 and mainly includes the battery compartment 1161 and the batteries 16 therein. The transition section 114 may correspond to a portion of the transition piece 1162 and may primarily include the elastic covering 118 and its covered transition piece 1162 . In other words, the length of the elastic portion 112 may be the length of the portion of the elastic wire 115 exposed from the connecting portion 12 and the transition piece 1162 and covered with the elastic covering 118 .

Further, the earphone 10 may further include a processing circuit and a detection component 1163 coupled to the processing circuit, the detection component 1163 detecting whether the hook-shaped portion 11 is hung between the back of the ear and the head. , and the processing circuit determines whether the earphone 10 is in the wearing state based on the detection result of the detection component 1163 . The processing circuitry may be integrated into the motherboard 15, and the sensing component 1163 is a capacitor, inductance, or resistance sensor located on the side of the hook 11 (e.g. transition piece 1162 or battery compartment 1161) facing the ears. It may be any one of the elements or a combination thereof. Illustratively, the sensing component 1163 may be a capacitive sensing element and may be placed in a conforming recess of the transition piece 1162 .

In some application scenarios, when the detecting component 1163 detects that the earphone 10 is in the wearing state, the processing circuit generates a first control signal for controlling the earphone 10 to switch to the playing state. If the detection component 1163 does not detect that the earbuds 10 are in the worn state, the processing circuit generates a second control signal to control the earbuds 10 to switch to the suspended state. In this way, not only can the electric energy of the earphone 10 be saved, but also the interactivity of the earphone 10 can be improved.

In some other application scenes, the earphone 10 may include a first earphone and a second earphone installed and communicatively connected in pairs, for example, the first earphone and the second earphone are , are worn on the left and right ears of the user, respectively, and detection parts 1163 are installed on both of them. Processing circuitry can determine based on the sensing results of sensing component 1163 in the first earbud and the second earbud to communicate one of them with an audio source device (e.g., mobile phone, tablet, smartwatch, etc.). to select as the main earphone connected to the Thus, when a user uses two earphones at the same time, according to a predetermined rule, one of them is selected as the main earphone communicatively connected with the audio source device, and the other is communicable with the main earphone. can be selected as a sub-earphone connected to the If the user uses only one of the two earphones, the used earphone is the main earphone.

As shown in FIGS. 30 and 32, the side of the retainer 13 facing the ears may include a first region 13A and a second region 13B, the second region 13B being more distant than the first region 13A. may also be remote from the connecting portion 12 , ie the second region 13</b>B may be located at the free end of the holding portion 13 remote from the connecting portion 12 . Based on the above related description, the orthographic projection along the thickness direction of the segment of the hook-like portion 11, such as the elastic portion 112, adjacent to the connecting portion 12 may partially overlap the second region 13B. Further, a sound emitting hole 1311 is provided in the first area 13A, and the second area 13B is directed further toward the ear than the first area 13A so that the sound emitting hole 1311 is separated from the ear when worn. protrude and touch the ears. Briefly, the holding part 13 may be configured with a convex hull structure at its free end. In this way, since the core 14 can generate sound that is transmitted to the ear through the sound emission hole 1311, the above-described convex hull structure allows the sound emission hole 1311 to be blocked by the ear, thereby causing the core 14 to generate sound. It is possible to avoid that the generated sound is weakened and cannot be output. Illustratively, in the thickness direction, the maximum protrusion height of the second region 13B with respect to the first region 13A may be 1 mm or more, and the transition between the two regions may be smooth. . It should be noted that the second region 13B protruding toward the ear may be larger than the first region 13A if it is only to separate the sound emitting hole 1311 from the ear in the wearing state. , such as a region between the sound emitting hole 1311 and the connecting portion 12 . Furthermore, since the conchal cavity and the conchal navicular have a certain depth and communicate with the ear canal, the orthographic projection of the sound emitting hole 1311 on the ear along the thickness direction is the concha It can reside at least partially within the cavity and/or the turbinate. Illustratively, the holding part 13 is positioned on the user's parietal side of the ear canal and can contact the anti-helix. The projection can reside at least partially within the turbinate.

Furthermore, as shown in FIGS. 30 and 47 , in the holding portion 13, the front cavity 200 and the back cavity 300 of the earphone 10 may be formed on both sides facing the core 14, respectively, and the sound emission hole 1311 is formed in the front It communicates with the cavity 200 and outputs sound to the ear. The holding portion 13 may further include a pressure relief hole 1312 that communicates with the back cavity 300 and is further from the ear canal than the sound emission hole 1311 . In this manner, the pressure relief holes 1312 allow air to freely flow in and out of the back cavity 300 to minimize interference with changes in the air pressure in the front cavity 200 in the back cavity 300 . It improves the quality of sound output to the ear through the sound hole 1311 . In addition, since the phases of the sounds output to the outside of the earphone 10 through the sound emission hole 1311 and the pressure relief hole 1312 are opposite, they cancel each other out as opposite phases in the far field away from the ear. It becomes an "acoustic dipole" and reduces sound leakage. The included angle between the connecting line between the center of the pressure relief hole 1312 and the center of the sound emission hole 1313 and the thickness direction may be 0° to 50°, preferably the included angle is It may be 0° to 40°. Furthermore, the holding part 13 may further include a sound adjustment hole 1313 communicating with the back cavity 300 , and the sound adjustment hole 1313 destroys the high pressure region of the sound field in the back cavity 300 The wavelength of the existing wave is shortened, so that the resonance frequency of the sound output to the outside of the earphone 10 through the pressure relief hole 1312 is made as high as possible, for example greater than 4 kHz, to reduce sound leakage. Preferably, the sound adjustment hole 1313 and the pressure relief hole 1312 may be located on opposite sides of the core 14, for example, by placing them facing back in the height direction, the sound in the back cavity 300 may be reduced. Maximum destruction of high pressure areas of the field. The opening direction of the pressure relief holes 1312 may be toward the top of the user's head, for example, the included angle between the opening direction and the vertical axis is 0° to 10°, whereby the pressure relief holes 1312 are , is farther from the ear canal than the sound adjusting hole 1313, and the user has difficulty hearing the sound output to the outside of the earphone 10 through the pressure relief hole 1312, thereby reducing sound leakage. Based on this, the pressure relief hole 1312 may have a first center in the longitudinal direction, the sound adjustment hole 1313 may have a second center in the longitudinal direction, and a second center in the longitudinal direction. may be further from the center of the sound emission hole 1311 than the first center in the longitudinal direction, thereby maximizing the distance between the sound adjustment hole 1313 and the sound emission hole 1311, and This reduces the cancellation of antiphase between the sound output to the outside of the earphone 10 through the sound adjustment hole 1313 and the sound transmitted to the ear through the sound emission hole 1311 . In other words, the orthographic projection of the sound adjusting hole 1313 along the height direction is at least partially the orthographic projection of the second region 13B along the thickness direction so as to be as far away from the sound emitting hole 1311 as possible. may cross.

Simply put, when wearing the earphone 10, the user mainly listens to the sound transmitted to the ear canal through the sound emitting hole 1311, and the other sound holes such as the pressure relief hole 1312 and the sound adjusting hole 1313 are Mainly, as much as possible, the sound should be audible so that the bass is deep and the treble is transparent. Thus, the longitudinal dimension of the exit end of the pressure relief hole 1312 (eg, L1 in FIG. 32) and the longitudinal dimension of the one end of the back cavity 300 proximate the pressure relief hole 1312 (eg, L2 in FIG. 45). ) may be 0.9 or more, and the dimensional relationship in the thickness direction of both may be the same or similar, so that the back cavity 300 can be formed with as large an area as possible. Communicate with the outside of the earphone 10, minimize the obstruction of the back cavity 300 to the front cavity 200, and offset the resonance frequency of the sound output to the outside of the earphone 10 through the pressure relief hole 1312 as high as possible. be able to.

Since the structural parts such as the core case 131 have a constant thickness, the holes such as the sound emission hole 1311, the pressure relief hole 1312, and the sound adjustment hole 1312 formed in the core case 131 have a constant depth. And further, with respect to the containing cavity formed in the core case 131, the hole according to the present application has an entrance end close to said containing cavity and an exit end remote from said containing cavity. The partition plate 137 and the communication holes formed thereon, which will be referred to below, are similar to it, and the description thereof is omitted here.

As shown in FIGS. 30 to 32, when observed in a natural state and when observed from the side facing the top of the user's head with the earphone 10 worn, for example, when observed along the height direction, the holding portion 13 and at least the segment of the hook-shaped portion 11 close to the connection portion 12 is spaced apart in the thickness direction, and the connection portion 12 is arranged in an arc between the holding portion 13 and the hook-shaped portion 11 may be connected. In this way, the connecting portion 12 allows the holding portion 13 positioned on the front side of the ear portion and the hook-shaped portion 11 positioned on the rear side of the ear portion to be separated in the thickness direction at least in the segments close to the connecting portion 12 . The earphones 10 can always be separated from each other, so that the earphones 10 bypass the upper roots of the ears and the tissues around them when worn, and the earphones 10 excessively pinch the helix near the upper roots of the ears, causing discomfort avoid.

Illustratively, the connecting portion 12 and the holding portion 13 can be connected along the longitudinal direction. At least a portion of the connecting portion 12 is free to move along the longitudinal direction and the height direction in the direction from one end connected to the holding portion 13 to the other end connected to the hook-shaped portion 11 . It extends away from the end and protrudes forward toward the user's face as a whole, so that the height difference in the height direction between the hook-shaped part 11 and the holding part 13 can smoothly transition. . As a matter of course, at least some of the connecting portions 12 are free ends of the holding portion 13 along the longitudinal direction in the direction from one end connected to the holding portion 13 to the other end connected to the hook-shaped portion 11 . may extend away from the Moreover, the connecting part 12 itself or the segment of the hook-like part 11 adjacent to the connecting part 12 may both extend away from the free end of the retaining part 13 along said thickness direction, whereby The segments of the holding portion 13 and the hook-shaped portion 11 adjacent to the connection portion 12 are spaced apart in the thickness direction. In some embodiments, as shown in FIGS. 37 and 38 , the connection portion 12 is further arranged in the longitudinal direction in the direction from one end connected to the holding portion 13 to the other end connected to the hook-shaped portion 11 . may extend away from the free end of the holding part 13 along the height direction, i.e. the connecting part 12 itself may be detoured in three-dimensional space Forms adjoining structures. In some other embodiments, as shown in FIGS. 42 and 43 , the connecting portion 12 is simultaneously connected in the direction from one end connected to the holding portion 13 to the other end connected to the hook-shaped portion 11 . It may extend away from the free end of the holding portion 13 along the longitudinal direction and said height direction, i.e. forming the front half of the roundabout structure and close to the connecting portion 12 of the hook-shaped portion 11 . A segment (e.g., elastic portion 112) continues to approach the free end of retaining portion 13 along the longitudinal direction away from connecting portion 12, while at the same time extending from the free end of retaining portion 13 along the height direction. They may extend apart, ie form the second half of the roundabout along structure, and then combine the two to form the roundabout along structure in three-dimensional space. Of course, in some other embodiments, the aforesaid detour-along structures may have only a front half portion or a rear half portion.

In some embodiments, the segment (e.g., the elastic portion 112) of the hook-like portion 11 adjacent to the connecting portion 12, the edge of the connecting portion 12 and the retaining portion 13 on the side facing the ears extends around. It may be installed in an arc shape. The minimum width of the arc along the thickness direction at a position 3 mm away from the detour inflection point in the reference direction that passes through the arc-shaped detour inflection point (for example, CP2) and is parallel to the longitudinal direction. W1 may be between 1 mm and 5 mm.

In some other embodiments, the minimum distance between the segment, e.g. It may be 5 mm or less.

Further, in some other embodiments, in the thickness direction, there is a The distance W2 may be between 3 mm and 6 mm.

In some other embodiments, the distance W3 between the second region 13B and the portion segment (e.g., the elastic portion 112) of the hook-shaped portion 11 adjacent to the connecting portion 12 in the thickness direction is 1 mm. It may be ˜5 mm.

As shown in FIGS. 34 and 32, the holding portion 13 may include a core case 131 connected to the connecting portion 12, and the structural components such as the core 14 and the motherboard 15 are all located within the accommodation space of the core case 131. may be fixed to Illustratively, the core case 131 may include a first case 1314 and a second case 1315 facing each other in the thickness direction. is also close to the ear. Of course, the first case 1314 and the second case 1315 may be installed facing the vibration direction of the core 14, and the aforementioned vibration direction may be parallel to the thickness direction. . Specifically, the core 14 can be fixed to the side of the first case 1314 facing the second case 1315 to surround and form the front cavity 200, the second case 1315 It can be engaged with the case 1314 to surround and form the back cavity 300 with the core 14 . Accordingly, the sound emitting hole 1311 may be placed on the first case 1314, for example, on the side facing the ears. The pressure relief hole 1312 and the sound adjustment hole 1313 may be installed on both sides of the second case 1315 facing each other, for example, both are installed facing each other in the height direction. Based on the above related description, the ratio between the longitudinal dimension of the outlet end of the pressure relief hole 1312 and the longitudinal dimension of the second case 1315 may be greater than or equal to 0.55, and the aforementioned ratio is preferably 0.8 to 1 in order to allow the back cavity 300 to communicate with the outside of the earphone 10 over as large an area as possible on the premise that the structural strength of the second case 1315 is compatible.

In some embodiments, as shown in FIG. 34, the connecting portion 12 may include a third case 122 connected to one end of the elastic wire 115 remote from the battery compartment 1161, for example, both Molded by metal insert injection molding process. Both the dimensions in the longitudinal direction of the second case 1315 and the third case 122 are smaller than the first case 1314, and the dimensions of the second case 1315 are much larger than the dimensions of the third case 122. can be as large as Thus, the second case 1315 is engaged with the first case 1314 and partially overlaps the first case 1314 in the orthographic projection in the thickness direction, and the third case 122 is the first case 1314. The second case 1315 of the second case 1315 is engaged with a portion of the second case 1315 located in the orthographic periphery. Briefly, the third case 122 may be engaged on the same side of the second case 1315 and the first case 1314, the first case 1314 being largely as the case of the retainer 13. A small portion doubles as a case for the connecting portion 12. In a specific embodiment, the ratio between the maximum longitudinal dimension of the third case 122 and the longitudinal dimension of the second case 1315 may be 0.4 or less.

Based on the above-mentioned related description, as shown in FIGS. 37 and 38, observation is made in a natural state, and observation is made along the height direction, for example, from the side facing the top of the user's head with the earphones 10 worn. Then, the first case 1314 and the elastic wire 115 are installed apart in the thickness direction, and the third case 122 is installed in an arc shape to connect the first case 1314 and the elastic wire 115 . As a result, the holding portion 13 located on the front side of the ear portion and the hook-shaped portion 11 located on the rear side of the ear portion are separated from each other in the thickness direction at least in the segment adjacent to the connecting portion 12. . In addition, the third case 122 extends from the one end connected to the first case 1314 to the other end connected to the elastic wire 115, simultaneously along the longitudinal direction and the height direction. 1315 and then may extend closer to the second case 1315 along the longitudinal direction and away from the second case 1315 along the height direction, thereby hooking The height difference in the height direction between the shaped portion 11 and the holding portion 13 can be smoothly transitioned. At this time, the second position point may be located at the connecting portion 12, and the starting point of the first segment may be farther from the connecting portion 12 than the second position point. The portion of the connecting portion 12 of the first case 1314 that also serves as the case may have the same or similar change tendency with the third case 122 . In this way, the connecting portion 12 itself can form a detouring structure in three-dimensional space. Therefore, as shown in FIG. 38, there is a parting line (denoted as PL1) between the third case 122 and the first case 1314, which are separately formed and then combined and connected. To solve the problem that the case of the part 12 presents a roundabout structure in a three-dimensional space and is difficult to release from the mold, further improve the manufacturing efficiency, and reduce the manufacturing cost.

In some embodiments, the third case 122 is integrally molded with the first case 1314 and formed with a receptacle, as shown in FIG. Furthermore, the connecting portion 12 may further include a connector 123 whose one end is connected to the hook-shaped portion 11 and whose other end is inserted into the receptacle and fixed. Realize the connection between Specifically, one end of the connector 123 remote from the third case 122 may be connected to the other end of the elastic wire 115 remote from the battery compartment 1161, for example, they are molded by a metal insert injection molding process. be. Furthermore, the connecting portion 12 may further include a locking member 124, and the portion of the connector 123 inserted into the third case 122 is locked with the third case 122 by the locking member 124, thereby facilitating assembly. Therefore, the reliability of assembly can be improved. The locking member 1224 may be a wedge placed in a post or sheet.

Based on the above-mentioned related description, as shown in FIGS. Extending away from the second case 1315 along the longitudinal direction and the height direction, the segment where the elastic wire 115 is exposed to the connector 123 and proximate to the connector 123 extends away from the connector 123, Further, it may extend away from the second case 1315 along the height direction while approaching the second case 1315 along the longitudinal direction. Accordingly, the third case 122 may also simultaneously extend away from the second case 1315 along the thickness direction, exposing the elastic wire 115 to the connector 123 and proximate the connector 123. The segments may continue to extend away from the second case 1315 along the thickness direction. At this time, the second position point may be located at the boundary between the hook-shaped portion 11 and the connecting portion 12, and the starting point of the first segment overlaps the second position point. may The portion of the first case 1314 that also serves as the case of the connecting portion 12 and the portion where the connector 123 is exposed from the third case 122 may have the same or similar change tendency with the third case 122 . In this way, the connecting part 12 can form only the first half of the above-mentioned roundabout along structure, the hook-shaped part 11 subsequently forms the second half of the roundabout along structure, and both are cooperating. can be used to form a detouring structure in three-dimensional space. Therefore, as shown in FIG. 42, there is a parting line (denoted as PL2) between the connector 123 and the third case 122 and the first case 1314, which are separately molded and then inserted. In order to solve the problem that the case of the connecting part 12 has a detouring structure in three-dimensional space and is difficult to release from the mold, furthermore, the manufacturing efficiency is improved and the manufacturing cost is reduced.

The case of the connecting portion 12 and the holding portion 13 may have other division methods. The case of the connection part 12 is divided into two by the detour inflection point, or has only one side, and the elastic wire 115 is also used as the other side, and the cases are further assembled correspondingly.

Based on the above related description, as shown in FIGS. 34 and 32, the holding part 13 should contact the front side of the ear, and in particular the free end of the holding part 13 should contact the ear, for example, the anti-helix. It should touch at a point (eg, CP0). Based on this, the flexible covering structure 132 may be installed on the side of the core case 131 facing the ears, avoiding at least the sound emitting hole 1311 . through-holes corresponding to . By making the Shore hardness of the flexible covering structure 132 smaller than the Shore hardness of the core case 131, the holding part 13 is brought into contact with the ears by the flexible covering structure 132, that is, the flexible covering structure 132 is , is elastically supported between the core case 131 and the ear to improve wearing comfort. In addition, based on the case division and joining method of the connecting part 12 and the holding part 13, the flexible covering structure 132 is formed into the first case 1314 and the second case 1314 by injection molding process in order to improve the appearance quality of the earphone 10. It may be molded so as to be directly attached to the case 122 or the like of No. 3, or, of course, it may be covered by an adhesive method. Since the elastic covering 118 may be installed on the hook-like portion 11, the elastic covering 118 and the flexible covering structure 132 may be molded in a single injection molding process, of course: They may be molded by two injection molding processes, and the materials of both may be the same or different. Based on this, unless otherwise specified, the present application mainly considers the part where the flexible covering structure 132 and the elastic covering 118 contact the user's skin.

In some embodiments, the flexible covering structure 132 is located at least partially on one side of the retainer 13 toward the ears away from the free end of the connecting portion 12, i.e. the second region 13B. good too. Accordingly, the orthographic projection of the elastic portion 112 on said reference plane (eg, the plane in which YZ lies) may partially overlap the orthographic projection of the flexible covering structure 132 on said reference plane. Moreover, the thickness of the flexible covering structure 132 can be designed differently, for example, by making the flexible covering structure 132 corresponding to the second region 13B thicker, the freedom of the holding part 13 is increased. The ends project towards the ears and have good flexibility. As a matter of course, if it is only for the second region 13B to protrude more toward the ear than the first region 13A, the thickness of the side of the first case 1314 facing the ear may be differentiated. You can design. Based on this, the first case 1314 is configured such that the first region and the second region 1314 correspond one-to-one with the first region 13A and the second region 13B on the side of the holding portion 13 facing the ears. may include a region of

In addition, one side of the flexible covering structure 132 facing the core case 131 may be recessed with at least one blind hole 1321 that is spaced apart from each other, and the blind holes 1321 mainly cover the flexible covering structure 132 By providing a deformation space in the body, the flexible covering structure 132 can be deformed more under pressure in the wearing state, further improving wearing comfort. In some embodiments, the number of blind holes 1321 may be multiple, such as at least two, which are spaced apart from each other to form beads to support the structure itself, thereby It has both elastic deformation amount and structural strength. Of course, in some other embodiments, the number of blind holes 1321 may be only one, at which time the elastic modulus of the flexible covering structure 132, the thickness and the size of the blind holes 1321 By controlling parameters such as thickness, it is possible to achieve both elastic deformation amount and structural strength. In order to have the blind hole 1321 in the flexible covering structure 132 , the core case 131 , specifically the portion corresponding to the second region 13B of the first case 1314 , has one-to-one correspondence with the blind hole 1321 . A through hole 13141 may be provided through which the molded core of the flexible covering structure 132 is inserted. At this time, the portion corresponding to the second region 13B of the first case 1314 may be arranged in a honeycomb or lattice shape by means of the plurality of through holes 13141, so that the region of the first case 1314 may and support for the flexible covering structure 132 are compatible. Furthermore, protrusions surrounding the through-holes 13141 may be provided along a honeycomb or lattice structure on the outside of the first case 1314, and the protrusions may be fitted into the flexible covering structure 132, and /or the flexible covering structure 132 is partially fitted into the through hole 13141 to increase the bonding area between the second region 13B of the flexible covering structure 132 and the first case 1314; Increase the bond strength between the two. Based on this, the corresponding through holes 13141 may be left during the molding process of the first case 1314, and the molding core of the flexible covering structure 132 may be inserted into the through holes 13141 after molding, and the molding core may be , may protrude from the first case 1314, and the maximum protrusion height may depend on the actual demand of the convex hull structure. An injection molding process can then be used to directly mold the flexible covering structure 132 onto the first case 1314 and then pull out the molding core. Accordingly, the holding part 13 may further include a cover plate 1316 installed within the core case 131, for example, the cover plate 1316 is fixed inside the first case 1314 against the flexible covering structure 132. can be installed to seal the through-hole 13141 and further surround the first case 1314 and cover plate 1316 and the core 14 to form the front cavity 200 . The lid plate 1316 may be supported by the honeycomb or lattice structure of the first case 1314 .

Illustratively, a first flange 13142 may be provided on the inner wall surface of the first case 1314 facing away from the flexible covering structure 132 , and a second flange 13142 may be provided on the inner wall facing away from the flexible covering structure 132 of the cover plate 1316 . Two flanges 13161 may be provided, and both ends of the second flange 13161 and both ends of the first flange 13142 may extend oppositely and join to form an annular flange. At this time, the core 14 can abut against the annular flange to form the front cavity 200 . A counterbored groove may be provided in the second region 13B of the first case 1314, and the cover plate 1316 is formed by the inner wall surface of the cover plate 1316 and the inner wall surface of the first case 1314 facing the flexible covering structure 132. may be fitted flush with the counterbore so that the interior cavity surface of the front cavity 200 is as flat as possible. In addition, a dispensing groove may be further installed on the inner wall surface of the first case 1314 facing away from the flexible covering structure 132, the dispensing groove being located at the edge of the counterbore groove and having a plurality of through holes. 13141 and the cover plate 1316 can be adhered to the first case 1314 by the colloid in the dispensing channel. Briefly, the first flange 13142 and the dispensing groove are both installed inside the first case 1314 against the flexible covering structure 132, the former mainly corresponding to the first region 13A. and the latter mainly corresponds to the second region 13B.

It should be noted that in other embodiments, e.g., the flexible covering structure 132 does not have blind holes 1321, or other implementations, e.g., in which the flexible covering structure 132 is separately molded and then, for example, adhered to the core case 131. In an example, the through hole 13141 may not be installed in the first case 1314 and the corresponding cover plate 1316 may not be installed. At this time, the first flange 13142 may be a complete annular flange, and the core 14 may abut against the annular flange to form the front cavity 200 .

In some other embodiments, as shown in FIG. 41, the flexible covering structure 132 comprises an inner flexible body 1322 placed on the core case 131 and an outer flexible body 1322 covering at least the inner flexible body 1322 . The inner flexible body 1322 may be located in the second region 13B, the outer flexible body 1323 includes the inner flexible body 1322, the first case 1314 and the third case 122, etc. can be covered. At this time, the flexible covering structure 132 contacts the ears with the outer flexible body 1323 . Simply put, the flexible covering structure 132 may be configured with a two-layer structure so that the thickness and flexibility of the portion corresponding to the second region 13B of the flexible covering structure 132 can be easily adjusted. good. Accordingly, the orthographic projection of the elastic portion 112 on said reference plane (eg, the plane in which YZ lies) may partially overlap the orthographic projection of the inner flexible body 1322 on said reference plane. Similarly, the sound emitting hole 1311 may be located between the inner flexible body 1322 and the connecting portion 12 . In addition, the inner flexible body 1322 may further protrude toward the ears, such that the flexible covering structure 132 forms the above convex hull structure, i.e. the core case 131 (specifically the first case 1314).

Illustratively, the blind holes 1321 may be placed in the inner flexible body 1322, the action and molding of which may be the same or similar to those described above, and are described here. is omitted. The blind holes 1321 may be multiple, whereby the inner flexible body 1322 has multiple beads arranged in a honeycomb or grid pattern or spaced apart from each other. Of course, in some other embodiments, the aforementioned blind holes 1321 may also be placed as through holes through the inner flexible body 1322 . Similarly, the gaps between the aforementioned beads, ie blind holes 1321 , provide deformation space for the flexible covering structure 132 . In a specific embodiment, the material of the inner flexible body 1322 and the outer flexible body 1323 can be 0 degree silica gel.

Illustratively, the Shore hardness of the inner flexible body 1322 is greater than the Shore hardness of the outer flexible body 1323 such that the portion corresponding to the second region 13B of the flexible covering structure 132 is more flexible. may be smaller. A blind hole 1321 may be recessed in one side of the outer flexible body 1323 facing the core case 131, the inner flexible body 1322 may be installed in the blind hole 1321, and the outer flexible body Contact 1323. In other words, the blind hole 1321 may be placed in the outer flexible body 1323 to accommodate the softer inner flexible body 1322 . Specifically, a through hole 13141 for inserting the molding core of the outer flexible body 1323 may be provided in a portion of the first case 1314 corresponding to the second region 13B. At this time, the outer flexible body 1323 may be formed in the first case 1314 by an injection molding process, and the outer flexible body 1323 is formed by pulling out the molding core after molding the outer flexible body 1323. A corresponding blind hole 1321 is formed to form a receiving area, and the inner flexible body 1322 passes through the through hole 13141 and is placed in the blind hole 1321, i.e., placed within the receiving area, The cover plate 1316 can then seal the through hole 13141 . The side of the lid plate 1316 facing the inner flexible body 1322 may be partially fitted into the through-hole 13141 so as to improve the sealing of said receiving area. Further, the number of blind holes 1321 may be one and the number of through holes 13141 may be one. At this time, if the opening area of the through-hole 13141 is large, the cover plate is partially formed between the first case 1314 and the first region 13A so as to increase the support area of the first case 1314 with respect to the cover plate 1316 . Extend until they overlap. A communication hole 13162 that communicates between the sound emitting hole 1311 and the front cavity 200 may be provided in the cover plate 1316 so as to avoid blocking the sound emitting hole 1311 . In a specific embodiment, the material of the outer flexible body 1323 can be 30-50 degree silica gel, the material of the inner flexible body 1322 can be 0 degree silica gel, and the adhesive It can be formed in the aforementioned containment area by an agent dripping process. In another specific embodiment, the material of the outer flexible body 1323 can be silica gel of 30-50 degrees, and the material of the inner flexible body 1322 can be silica gel of 0-10 degrees. Alternatively, it can be pre-formed into a block and filled in the above-mentioned receiving area. Of course, if the inner flexible body 1322 can receive the impact force in the molding process of the outer flexible body 1323, the through hole 13141 may not be installed in the first case 1314, and the corresponding The cover plate 1316 may not be installed.

Based on the above detailed description, structural components such as first case 1314, outer flexible body 1323, inner flexible body 1322 and lid plate 1316 form a case assembly for ease of assembly. That is, it can be modularized.

As shown in FIG. 30, the earphone 10 may further include a microphone 125 and a microphone 133 installed on the holding portion 13 and/or the connecting portion 12, the two microphones 125, 133 being electrically connected to the motherboard 15. may be The distance in the longitudinal direction between the microphones 125 and 133 may be greater than the distance in the height direction between the microphones 125 and 133 . Thus, interference between the two microphones 125, 133 can be avoided by making the distance between the two microphones 125, 133 as large as possible when the size of the earphone 10 is determined relatively. In addition, the sound collection effect and/or noise reduction effect of the earphone 10 can be improved. Furthermore, the connecting line between the orthographic projection of microphone 125 in said reference plane (e.g. the plane in which YZ is located) and the orthographic projection of microphone 133 in said reference plane passes through the orthographic projection of core 14 in said reference plane. be able to. In other words, the two microphones 125 , 133 may be placed substantially along the diagonals of the core 14 when the core 14 is placed rectangularly on the reference plane.

In some embodiments, the microphone 125 may be placed on the connecting portion 12 and the microphone 133 may be placed on the free end of the holding portion 13 away from the connecting portion 12 . At this time, microphone 125 may be closer to the user's mouth than microphone 133 so as to primarily pick up the user's voice. The earphone 10 may further include a processing circuit, which is integrated on the motherboard 15, the microphone 125 is the main microphone, the microphone 133 is the auxiliary microphone, and the audio signals collected by the auxiliary microphone are collected by the main microphone. Noise reduction processing is performed on the audio signal to improve the sound collection effect. Of course, at least one of the two microphones 125 and 133 may further perform noise reduction processing on the sound output by the earphone 10 to the ear, and one for sound collection or noise reduction. Only one microphone may be installed.

Illustratively, microphone 125 may be placed between third case 122 and first case 1314, and microphone 133 may be placed between second case 1315 and first case 1314. may be Through-holes for the microphones to collect sound may be provided in the third case 122 and the side of the second case 1315 facing away from the first case 1314 .

In some other embodiments, the earphone 10 may further include a boom microphone 134 detachably connected to the holding portion 13 or the free end (i.e., the battery portion 113) of the hook portion 11 remote from the connecting portion 12. A microphone 1341 electrically connected to the motherboard 15 may be installed at the free end of the boom microphone 134 . Thus, compared to mic 125 and mic 133, boom mic 134 allows mic 1341 to be closer to the user's mouth, helping to increase sound collection effectiveness. The present application will exemplify an example in which the boom microphone 134 and the holding portion 13 are detachably connected. For example, the main rod 1342 and the second case 1315 of the boom microphone 134 are detachably connected by locking or magnetism. are detachably connected by inserting the type-C so as to shorten the wiring distance between them.

Further, in addition to microphone 1341 of boom mic 134, earphone 10 may also be provided with other microphones, such as mic 125 and/or mic 133. FIG. The processing circuit may set the microphone 1341 as the main microphone and at least one of the microphones 133 and 125 as the auxiliary microphone when the boom microphone 134 is connected to the holding part 13, and the audio signal collected by the auxiliary microphone By performing noise reduction processing on the audio signal collected by the main microphone, the sound collection effect can be improved. Accordingly, the processing circuit switches the microphones 133 and 125 to the enabled state and sets one of the microphones 133 and 125 as the primary microphone and the other as the auxiliary microphone when the boom microphone 134 moves away from the holding portion 13 . can be Of course, the processing circuitry also switches at least one of the microphones 133 and 125 to a disabled state when the boom microphone 134 is connected to the holding portion 13 for sound collection and/or noise reduction. Power can be saved while considering

As shown in FIGS. 30 and 31, the earphone 10 further includes a first charging electrode 126 installed on the holding portion 13 or the connecting portion 12 and a second charging electrode 1164 installed on the hook-shaped portion 11. one of the first charging electrode 126 and the second charging electrode 1164 is used as a positive charging electrode and the other as a negative charging electrode. The present application exemplifies that the first charging electrode 126 is the positive charging electrode and the second charging electrode 1164 is the negative charging electrode. In this way, the earphone 10 can not only be charged by two charging electrodes, but also can greatly increase the shortest distance between the two charging electrodes, thus preventing charging by sweat, water droplets, dust, etc. Helps prevent short circuits between electrodes. Of course, both of the two charging electrodes may be placed on one of the hook-shaped portion 11, the connecting portion 12 and the holding portion 13 if short-circuiting can be prevented. Furthermore, considering the appearance quality of the earphone 10, the two charging electrodes may be configured so as to be invisible when worn, for example, both facing the user's skin.

Illustratively, the first charging electrode 126 may be placed on the connection portion 12 and the second charging electrode 1164 may be placed on the battery portion 116 . Specifically, the first charging electrode 126 may be positioned at least partially around the second case 1315 , eg, positioned between the third case 122 and the first case 1314 . may Accordingly, the second charging electrode 1164 may be installed in the battery compartment 1161 , for example, located at the bottom away from the open end of the battery compartment 1161 . The first charging electrode 126 may be installed in a columnar shape, and the second charging electrode 1164 may be installed in a strip shape, the longitudinal direction of which extends along the circumferential direction of the battery storage chamber 1161. may Further, through holes for exposing the charging electrodes may be provided in the first case 1314 and the battery compartment 1161 respectively so that the charging electrodes can contact the output electrodes in the charging box. As described above, the strip-shaped electrodes have a larger contact area with the output electrodes than the columnar electrodes, so that the reliability of the charging electrodes can be improved.

It should be noted that the first charging electrodes 126 may be spaced apart in multiple locations on the connecting portion 12, for example two such that if one of them fails, the other is still available. good. Further, a magnetic attraction member such as a magnetic material may be installed near each of the two charging electrodes so that the earphone 10 can be in good contact with the output electrode on the battery box by magnetic attraction. The relative position of the output electrodes on the charging box can be adjusted as the charging electrodes on the earphone 10 change.

Since the second case 1315 is further from the ear than the first case 1314, as shown in FIG. Interaction components such as circuit boards and the like may be provided.

Illustratively, the second case 1315 has a bottom wall 13151 installed opposite the first case 1314 and side walls 13152 connected to the bottom wall 13151 and extending toward the first case 1314 . and may include A flexible touch circuit board 135 electrically connected to the motherboard 15 is installed on the side of the bottom wall 13151 facing the first case 1314, and the flexible touch circuit board 135 may be capacitive, resistive, It can be based on any one of, but not limited to, pressure sensitive formulas. In this way, the interaction of the earphone 10 can be achieved, and the core case 131 does not need to be provided with additional through-holes, further 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 connecting the motherboard 15, for example, the flexible touch circuit Substrate 135 may engage motherboard 15 via a BTB connector. The area of the touch portion 1351 with respect to the bottom wall 13151 may be 70% or more. Based on the above related description, the side of the side wall 13152 close to the third case 122 may be open and installed so that the second case 1315 and the third case 122 can be easily combined. The pressure relief hole 1312 and the sound adjustment hole 1313 may be installed in the side wall 13152 and may be located on opposite sides of the open end, respectively.

Further, a counterbore groove 13153 may be provided on the bottom wall 13151 , and the touch portion 1351 may be attached to the bottom of the counterbore groove 13153 . Thus, the second case 1315 is locally thinned to improve the sensitivity of the flexible touch circuit board 135 . In addition, the motherboard 15 is further connected to the second case 1315 so that the flexible touch circuit board 135 can be pressed against the bottom wall 13151 by the elastic pads 1353, thus making the touch part 1351 contact the bottom wall. It is possible not only to bring the touch part 1351 into close contact with 13151, but also to prevent the touch part 1351 from being pressed and broken. The depth of the counterbore groove 13153 may be greater than or equal to the thickness of the touch portion 1351 and may be smaller than the sum of the thicknesses of the touch portion 1351 and the elastic pad 1353 in order to improve the pressing effect.

In some embodiments, the bottom wall 13151 may be provided with a plurality of heat stakes 13154 , for example, three heat stakes 13154 located around the counterbore groove 13153 and extending toward the motherboard 15 . can pass through the orthographic projection on the bottom wall 13151 of the touch portion 1351 . Correspondingly, the motherboard 15 may be provided with connection holes corresponding to the heat stakes 13154 so that the motherboard 15 is fitted and fixed to the heat stakes 13154 through the connection holes thereon. Briefly, when the touch portion 1351 is configured in a rectangular shape, the at least two heat stakes 13154 may be placed substantially along diagonal lines of the touch portion. Thus, the uniformity of stress distribution on the motherboard 15 is improved. Of course, in some other embodiments, the heat stakes 13154 can be replaced with screws, buckles, etc., but not limited to such.

Based on the above related description, the microphone 133 may be directly installed on the side of the motherboard 15 facing away from the bottom wall 13151 by SMT process. Accordingly, the bottom wall 13151 may be provided with a flange 13155 positioned around the counterbore groove 13153, the flange 13155 extending toward the motherboard 15 and having a sound collecting hole communicating with the outside of the earphone 10. . At this time, the motherboard 15 may be pressed against the flange 13155 so that the microphone 133 collects audio signals through the sound collection holes. A silicone sleeve 13156 may be fitted to the flange 13155 , whereby the mother board 15 is elastically supported by the silicone sleeve 13156 on the flange 13155 . In this way, not only can the sound path of the microphone 133 be sealed better, but also the uniformity of stress distribution on the mother board 15 can be improved.

In addition, an antenna metal pattern serving as a communication antenna of the earphone 10 may be further installed on the second case 1315 . Accordingly, an antenna contact 13157 may be provided on the bottom wall 13151 around the counterbore groove 13153 and electrically connected to the antenna metal pattern, and elastically abut the antenna contact 13157 on the motherboard 15 . A metal dome may be installed for Simply put, the metal dome on the motherboard 15 and the antenna contact 13157 can avoid unnecessary welding, further reduce assembly difficulty, and save space inside the core case 131 .

As described above, by connecting the motherboard 15 to the second case 1315, it is possible not only to achieve its own fixation, but also to press the flexible touch circuit board 135, seal the audio path of the microphone 133, and An electrical connection between 15 and the metal pattern for the antenna can be realized, which can be said to be a win-win.

Based on the above related description, as shown in FIGS. 35 and 41, the electronic component installed on the hook-shaped portion 11 is electrically connected to the mother board 15 via the lead wire 117 and installed on the connection portion 12. Since the electronic components are close to the mother board 15, they are electrically connected directly to the mother board 15 by their lead wires. A plurality of lead wires 117 are installed, and may include a positive lead wire and a negative lead wire of the battery 16 , a signal wire and a shield wire of the detection component 1163 , and a negative lead wire of the second charging electrode 1164 . Of course, in order to further simplify the wiring, the shield wire of the detection component 1163 and the lead wire of the second charging electrode 1164 may share one lead wire. Furthermore, due to the limited size of motherboard 15 and the large number of electronic components integrated thereon, leads 117 or other leads are welded to flexible circuit board 136 before flexible circuit board 136 is welded. can be engaged and connected to the mother board 15 by the Let

Illustratively, the flexible circuit board 136 may include at least a first connection area 1361 for electrically connecting to the battery 16 and a second connection area 1362 for electrically connecting to the motherboard 15. good. A second connection region 1362 may be located along a major surface of the motherboard 15 such that the flexible circuit board 136 is engaged and connected to the motherboard 15 . In addition, the first connection area 1361 may be bent toward the side of the motherboard 15 with respect to the second connection area 1362, and a plurality of pads may be installed, that is, the welding is This is done in the lateral direction of the motherboard 15 . In this way, since there is no interference between the electronic components on the main surface of the mother board 15, the difficulty of welding can be reduced. In addition, since the flexible circuit board 136 is thin and bent toward the side of the motherboard 15, the space inside the core case 131 can be saved. Based on the above related description, the plurality of pads installed in the first connection region 1361 includes a first pad and a second pad for welding and connecting to the positive and negative lead wires of the battery 16, respectively. pads, and may further include a third pad and a fourth pad for welded connection to the positive and negative leads of the charging electrode, respectively, the signal line and shield of the sensing component 1163, respectively. It may further include a fifth pad and a sixth pad for welding and connecting to the wire. Since the shield wire of sensing component 1163 can be multiplexed into one lead wire with the lead wire of second charging electrode 1164, only one of the fourth and sixth pads can be installed. Well, this helps in enlarging the size of the other pads and the spacing between the two.

Based on the above related description, the microphone 125 may be installed on the connection 12 so as to be closer to the motherboard 15 so that the flexible circuit board 136 can extend further to the connection 12 . Based on this, 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 connecting the first case 1314 and/or Alternatively, it may be bent away from the motherboard 15 with respect to the first connection area 1361 so as to be attached to the third case 122 . The microphone 125 may be installed in the third connection area 1363 by SMT process. At this time, the first connection region 1361 and the third connection region 1363 may be perpendicular to the main surface of the motherboard 15 , and the second connection region 1362 may be parallel to the main surface of the motherboard 15 . good too.

Unlike the first connection area 1361, the second connection area 1362 may be engaged to the motherboard 15 by a BTB connector. Based on this, the flexible circuit board 136 may further include a transition region 1364 connecting the first connection region 1361 and the second connection region 1362, wherein the transition region 1364 and the second connection region 1362 are: They may be located on the same side of motherboard 15 . The length of the transition region 1364 is greater than the minimum distance between the first connection region 1361 and the second connection region 1362 so as to engage the first connection region 1361 and the motherboard 15 . Illustratively, transition region 1364 may be configured in a multi-step bend structure and may be located along a major surface of motherboard 15 .

As shown in FIG. 35, the core 14 may include a magnetic circuit system 141 and a coil 142, the coil 142 penetrating into the magnetic gaps of the magnetic circuit system 141 to generate the magnetic field produced by the magnetic circuit system 141 in an energized state. can be moved to The magnetic circuit system 141 may include structural components such as permanent magnets, yokes and brackets, the specific structures and connection relationships of which are well known to those skilled in the art and will not be described here. Additionally, the coil 142 may be configured to drive movement of the vibration transmission sheet when the core 14 is applied to a bone conduction earphone. If the core 14 is applied in an air conducting earphone, the coil 142 may be configured to drive movement of the vibrating membrane. Of course, the coil 142 may also be configured to simultaneously drive movement of the vibration transfer sheet and diaphragm. The present application exemplifies that the coil 142 drives the movement of the vibrating membrane. Based on this, the core 14 may further include a vibrating membrane 143 connected between the coil 142 and the magnetic circuit system 141, and in the process of vibrating the vibrating membrane 143, the sound will pass through the sound emitting hole 1311 to the ear. A transmitted voice can be generated.

Moreover, the core 14 may further include a metal dome 144 fixed around the magnetic circuit system 141 , the metal dome 144 being electrically connected to the coil 142 . At this time, the core 14 is elastically pressed against the mother board 15 by the metal dome 144 to electrically connect the coil 142 to the contacts on the mother board 15 . In this way, by replacing the bonding wire in the related art with the metal dome 144, unnecessary welding is avoided, the difficulty of assembly is reduced, there is no need to leave a welding space, and the core case 131 is Interior space is saved. The number of metal domes 144 may be two, and may be the positive and negative lead wires of the coil 142, respectively.

Illustratively, as shown in FIG. 40 , the metal dome 144 may include a fixed portion 1441 and an elastic contact portion 1442 connected to one end of the fixed portion 1441 , the fixed portion 1441 connecting the magnetic circuit system 141 , and the elastic contact portion 1442 extends away from the magnetic circuit system 141 of the fixed portion 1441 . Briefly, the metal dome 144 protrudes from the magnetic circuit system 141 at the portion electrically connected to the contacts on the motherboard 15 . Furthermore, the metal dome 144 may further include a stopper portion 1443 connected to the other end of the fixed portion 1441 , and the stopper portion 1443 extends on the same side as the elastic contact portion 1442 . The elastic contact portion 1442 further bends and extends toward the stopper portion 1443, and its free end is inserted into the stopper groove of the stopper portion 1443, so that the elastic contact portion 1442 stores elastic potential energy in advance. and further improve the contact quality between the metal dome 144 and the contacts on the motherboard 15 . At this time, the height of the middle portion of the elastic contact portion 1442 with respect to the fixed portion 1441 is greater than the height of the free end of the elastic contact portion 1442 with respect to the fixed portion 1441 so that the contacts on the motherboard 15 can be contacted.

Based on the above related description, the magnetic circuit system 141 may be connected to the side of the first case 1314 facing the second case 1315, and the motherboard 15 may be connected to the first case 1314 of the second case 1315. It may be connected on the opposite side. At this time, by engaging the second case 1315 with the first case 1314, the core 14 can elastically press its metal dome 144 against the motherboard 15, which is simple and reliable. , the efficiency of assembly is high. By installing the metal domes 144 on opposite sides of the magnetic circuit system 141, the stability of the first case 1314 sandwiching the core 14 with the second case 1315 and the mother board 15 can be improved. Correspondingly, the vibrating membrane 143 can be formed surrounding the front cavity 200 together with the first case 1314, for example, the magnetic circuit system 141 can connect the second flange 13161 and the first flange 13142 together. It abuts the annular flange. A through hole is provided in the magnetic circuit system 141 to communicate the back cavity 300 and the side of the vibration film 143 facing away from the front cavity 200 . In other words, the core 14 (which may be specifically the vibrating membrane 143) can divide the housing cavity formed by the core case 131 into a front cavity 200 and a back cavity 300 facing each other. . At this time, the orthographic projection of the sound emitting hole 1311 along the vibration direction of the core 14 can at least partially fit within the vibrating membrane 143 . Further, the mother board 15 and the core 14 are stacked in the thickness direction, and the core 14 is closer to the ears than the mother board 15, so that the mother board 15 has a side opposite to the back cavity 300 of the vibration membrane 143 and a front side. It is possible to avoid installing a through-hole communicating with the cavity 200 and further simplify the structure. Based on this, the overlap area between the orthographic projection of the core 14 on the reference plane (for example, the plane on which YZ is located) and the orthographic projection of the motherboard 15 on the reference plane, and the orthographic projection of the motherboard 15 on the reference plane and the area of the orthographic projection of the core 14 on the reference plane, whichever is larger, may be 0.8 to 1. For example, the ratio of the area of the orthographic projection on the reference plane of the core 14 to the The orthographic areas of the motherboard 15 on the reference plane are approximately equal. Specifically, the absolute value of the difference between the dimension of the core 14 in the longitudinal direction and the dimension of the motherboard 15 in the longitudinal direction, and the dimension of the motherboard 15 in the longitudinal direction and the dimension of the core 14 in the longitudinal direction may be 0 to 0.2, and the dimensional relationship in the height direction of both may be the same or similar. Thus, for a given volume of the containing cavity formed by the core case 131, making the core 14 as large as possible helps increase the volume of the earphone 10 and widen the frequency response range of the earphone 10.

40, the core 14 has a major axis direction (denoted as Y1) and a minor axis direction (denoted as Z1) perpendicular to each other and perpendicular to the vibration direction (denoted as X1) of the core 14. However, for convenience of explanation, the aforementioned vibration direction, major axis direction and minor axis direction in the embodiments provided herein are parallel to the thickness direction, major axis direction and height direction, respectively. good too. Of course, in some other embodiments there may be an included angle between them. Further, the dimension of core 14 along its major axis is greater than or equal to the dimension of core 14 along its minor axis. Illustratively, the orthographic projection of the core 14 on a reference plane perpendicular to its vibration direction may be a rectangle, in which case the long axis direction is the direction of the long side of the rectangle. There may be, and the short axis direction mentioned above may be the direction of the short side of the rectangle mentioned above.

The inventors of the present application have found from long-term research that when the motherboard 15 is installed on the side of the core 14 facing away from the front cavity 200, a large number of electronic components of different sizes and shapes installed on the motherboard 15 will not affect the earphone. It turned out that it affects the sound quality of 10. For this reason, as shown in FIG. 36 or FIG. 46, the holding part 13 may further include a partition plate 137 installed inside the core case 131. The partition plate 137 mainly separates the core 14 and the motherboard 15. , together with the core 14 may form a surrounding back cavity 300, ie, a separate acoustic cavity. Specifically, the partition plate 137 may be positioned between the magnetic circuit system 141 and the motherboard 15 , and may be formed surrounding the back cavity 300 together with the magnetic circuit system 141 . Of course, in some other embodiments, the motherboard 15 may be covered with a diaphragm so as to make the side of the motherboard 15 facing the core 14 as flat as possible.

Illustratively, the dividers 137 may be connected to the core 14, ie modularized, to facilitate assembly. Specifically, as shown in FIGS. 39 and 44, the partition plate 137 may include a bottom wall 1371 and a side wall 1372 connected to the bottom wall 1371 , the bottom wall 1371 being spaced apart from the magnetic circuit system 141 . , side wall 1372 may extend toward and connect to core 14 (specifically, magnetic circuit system 141 ) such that partition plate 137 and core 14 surround and form back cavity 300 . can. In order to accurately assemble the partition plate 137 and the core 14 , the side of the partition plate 137 facing the magnetic circuit system 141 may be further provided with a dispensing groove 1373 and a positioning post 1374 matching the magnetic circuit system 141 . Accordingly, the metal dome 144 may be positioned around the partition plate 137 .

Based on the above related description, the side wall 1372 may be further provided with a communication hole that allows communication between the back cavity 300 and the outside of the earphone 10 , for example, a second pressure relief hole that communicates the pressure relief hole 1312 with the back cavity 300 . 1 communicating hole 1375 and a second communicating hole 1376 communicating between the sound adjusting hole 1313 and the back cavity 300 . In order to seal the sound path communicating between the back cavity 300 and the outside of the earphone 10 , the above-described communication hole sealing member is elastically supported and surrounded between the partition plate 137 and the core case 131 .

In the present application, the structural components such as the core case 131 and the core 14 may be configured in a substantially cubic structure, or may be configured in a cylindrical structure, and are not limited herein. The present application exemplifies that the core 14 is configured in a cubic structure. Based on this, the dimension of the partition plate 137 in the longitudinal direction may be equal to or greater than the dimension of the partition plate 137 in the height direction. As shown in FIG. 39, the sidewalls 1372 include a first sidewall 13721, a third sidewall 13723, which are longitudinally spaced from each other, and a second sidewall 13722, which are vertically spaced from each other. 4 sidewalls 13724 may be included. Furthermore, one of the second side wall 13722 and the fourth side wall 13724 may be provided with the first communication hole 1375 and the other side may be provided with the second communication hole 1376 . Based on the above related description, the first communication hole 1375 may be located in the second side wall 13722 and the second communication hole 1376 may be located in the fourth side wall 13724 . 44 and 45, the second side wall 13722 is omitted, and the first communication hole 1375 is directly surrounded by the bottom wall 1371, the first side wall 13721 and the third side wall 13723. may be formed and is exemplarily described below.

Furthermore, the third side wall 13723 may be further from the sound emitting hole 1311 than the first side wall 13721 , i.e. farther from the connecting part 12 and closer to the free end of the holding part 13 . The dimension in the longitudinal direction of the first communication hole 1375 may be larger than the dimension in the longitudinal direction of the second communication hole 1376, and the dimensions in the thickness direction of both may be equal, whereby The first communication hole 1376 and the second communication hole 1376 are respectively adjusted to adjust the actual area of the effective communication area between the back cavity 300 and the outside of the earphone 10 . Based on this, the first sidewall 13721 and the fourth sidewall 13724 may be connected by a first arcuate transition wall 13725, thereby providing a perpendicular, pointed inner wall of the back cavity 300 formed surrounding it. It helps to avoid the appearance of sharp structures such as corners and also to remove standing waves. The first arcuate transition wall 13725 may be set in an arc and may have an arc radius of 2 mm or more. Similarly, the third sidewall 13723 and the fourth sidewall 13724 may be connected by a second arcuate transition wall 13726, the curvature of at least a portion segment of the inner wall surface of the first arcuate transition wall 13725 The radius may be greater than the radius of curvature of the corresponding segment of the inner wall surface of the second arcuate transition wall 13726 so that the inner wall of the back cavity 300 that is similarly formed around is at right angles, cusps, etc. The appearance of sharp structures can be avoided. Of course, in some other embodiments, the second arcuate transition wall 13726 may not be provided, e.g. A second communication hole 1376 may be provided so that the second communication hole 1376 extends along the longitudinal direction until it is flush with the inner wall surface of the third side wall 13723 .

In the thickness direction, the inner wall of the first communication hole 1375 facing the core 14 may be flush with the inner wall of the bottom wall 1371 facing the core 14 , or the core 14 of the second communication hole 1376 may be flush with the inner wall of the bottom wall 1371 facing the core 14 . The opposite inner wall may be flush with the inner wall surface of the bottom wall 1371 facing the core 14, i.e., the first through hole 1375 and the second through hole 1376 extend along the thickness direction of the bottom wall. 1371 to be flush with the inner wall surface of the back cavity 300, thereby avoiding the appearance of sharp structures such as right angles and sharp angles on the inner wall of the surrounding back cavity 300; helps to remove the Furthermore, the inner wall surface of at least one of the first sidewall 13721 and the third sidewall 13723 may be arranged in an arc when viewed along the height direction, thereby forming a surrounding Avoid the appearance of sharp structures such as right angles and sharp angles on the inner wall of the back cavity 300 . As a matter of course, the inner wall surfaces of the side wall 1372 and the bottom wall 1371 may all be connected by arcs.

In some embodiments, the height of both the second sidewall 13722 and the fourth sidewall 13724 relative to the bottom wall 1371 is the same as the bottom wall 1371 of the first sidewall 13721 and the third sidewall 13723, as shown in FIG. , the core 14 fits between the second side wall 13722 and the fourth side wall 13724, and the first side wall 13721 and the third side wall 13723 are respectively at the bottom of the core 14. It abuts on the side facing the wall 1371 . At this time, in the thickness direction, the dimension of the first communication hole 1375 may be equal to or larger than the distance between the bottom wall 1371 and the core 14, and the dimension of the second communication hole 1376 may be equal to or greater than the distance between the bottom wall 1371 and the core 14. and the core 14, thereby avoiding the appearance of sharp structures such as right angles, cusps, etc. on the inner wall of the surrounding back cavity 300, and further eliminating standing waves. help to do Furthermore, the holding part 13 may further include a first sealing member 1381 and a second sealing member 1382 elastically supported between the partition plate 137 and the core case 131. For example, the first sealing member 1381 is elastically supported between the second side wall 13722 and the second case 1315 to surround the first communication hole 1375, and further, for example, the second sealing member 1382 is connected to the fourth side wall 13724 and the second case 1315 to surround the second communication hole 1376 . Furthermore, the outlet end of the first communication hole 1375 may be covered with the first acoustic resistance mesh 1383, and the side of the first acoustic resistance mesh 1383 facing away from the side wall 1372 may be further covered with a protective cover. good. Similarly, the exit end of the second communication hole 1376 may be covered with a second acoustic resistance mesh 1384, and the side of the second acoustic resistance mesh 1384 facing away from the side wall 1372 may be further covered with a protective cover. good too. Acoustic resistance mesh can not only improve waterproof and dustproof performance, but also reduce sound leakage. The structural strength of the protective cover is higher than that of the acoustic-resisting mesh to avoid the sound-resisting mesh being penetrated by foreign objects. Additionally, the porosity of the second acoustically resistant mesh 1384 may be less than or equal to the porosity of the first acoustically resistant mesh 1383 .

Illustratively, the first sealing member 1381 extends along the first extension 13811 and the lateral direction of the first extension 13811 connected to the first extension 13811. a second extension 13812; The first extending portion 13811 and the second extending portion 13812 are attached and fixed to the sides of the side wall 1372 and the bottom wall 1371 facing away from the back cavity 300, respectively, thereby forming the first sealing member 1381 and the partition plate. 137 to increase the junction area. Accordingly, the first extension 13811 exposes the area corresponding to the first communication hole 1375 of the first acoustic resistance mesh 1383, e.g. It surrounds the hole 1375 and the first acoustically resistive mesh 1383 thereon to provide communication between the back cavity 300 and the exterior of the earbud 10 . Furthermore, the first extension 13811 presses the first acoustic resistance mesh 1383 against the side of the side wall 1372 away from the back cavity 300 so as to avoid separation between the first acoustic resistance mesh 1383 and the side wall 1372 . may be fixed.

In this embodiment, the structure of the second sealing member 1382 and the connection relationship between it and the partition plate 137 can be the same as or similar to the first sealing member 1381, and the description is omitted here. . Additionally, the first sealing member 1381 and the second sealing member 1382 can be formed in the partition plate 137 by an injection molding process.

It should be noted that, in this embodiment, the structural components such as the core 14, the partition plate 137 and the acoustic resistance mesh and sealing members thereon can form a speaker assembly, i.e. modularized, so as to facilitate assembly. can.

In some other embodiments, the second sidewall 13722 can be omitted, as shown in FIG. By providing a second communication hole 1376 in a part of the fourth side wall 13724 and making the height to the bottom wall 1371 equal to the height of the first side wall 13721 and the third side wall 13723 to the bottom wall 1371 , abut the magnetic circuit system 141 together. At this time, the first sealing member 1381 is embedded in a preset counterbore groove of the first sealing member 1381 or the second case 1315, and then attached and fixed to the second case 1315. The second case 1315 and the first sealing member 1381 sandwich the first acoustic resistance mesh 1383 together for subsequent assembly. A counterbore groove for accommodating the first acoustic resistance mesh 1383 may be provided on the side of the first sealing member 1381 facing the second case 1315 . Similarly, for ease of assembly, a second sealing member 1382 and a second acoustically resistant mesh 1384 are affixed and secured to the second case 1315 to form a case assembly, i.e. modular. be able to.

Based on the above detailed description, the following definitions are made with reference to FIG. 47 for convenience of description. The front cavity 200 may have a first opening 201 that allows communication between the front cavity 200 and the exterior of the earbud 10, and the back cavity 300 allows communication between the back cavity and the exterior of the earbud 10. It may have a second opening 301 and a third opening 302 that open. Accordingly, the second opening 301 may be further from the ear canal than the first opening 201 and the third opening 302 . The above-mentioned first to third openings refer to effective communication areas between the front cavity 200 or the back cavity 300 and the outside of the earphone 10, that is, the transmission from the front cavity 200 or the back cavity 300 to the outside of the earphone 10 This is the area where the cross section through which the sound passes in the process of being processed is the smallest. For example, the core 14 fits with the first case 1314 (and cover plate 1316 ) to form the front cavity 300 , and the first opening 201 corresponds to the sound emission hole 1311 . In the embodiment in which the partition plate 137 is installed in the earphone 10 , that is, the partition plate 137 and the core 14 are fitted together to form the back cavity 300 , the actual area of the pressure relief hole 1312 is the actual area of the second communication hole 1376 . , the second opening 301 corresponds to the second communication hole 1376, and the actual area of the pressure relief hole 1312 is smaller than the actual area of the second communication hole 1376, the second opening 301 corresponds to the second corresponds to the pressure relief hole 1312, and when the pressure relief hole 1312 and the second communication hole 1376 are offset from each other, the second opening 301 corresponds to the pressure relief hole 1312 and the second communication hole 1376 correspond to portions that are not blocked. The same applies to the third opening 302, and the description is omitted here. In some other embodiments in which the earphone 10 is not provided with a partition plate 137, i.e., the second case 1315 and the core 14 are mated to form the back cavity 300, the second opening 301 and the third Apertures 302 correspond directly to pressure relief holes 1312 and sound adjustment holes 1313, respectively. Of course, if at least one of front cavity 200 and back cavity 300 is not installed in earphone 10, there may be no corresponding openings.

Further, for convenience of explanation, the effective area described herein can be defined as the product of the actual area of the effective communication region and the porosity of the overlying acoustically resistant mesh. For example, if the first opening 201 is covered with an acoustic resistance mesh, the effective area of the first opening 201 is the product of the actual area of the first opening 201 and the porosity of the acoustic resistance mesh. be. The effective area of the first opening 201 is the actual area of the first opening 201 if the first opening 201 is not covered with an acoustically resistant mesh. The same applies to the second opening 301 and the third opening 302, and the description thereof is omitted here. In the present application, the effective area of the third openings 302 may be smaller than the effective area of the second openings 301 .

In some embodiments, as shown in FIGS. 39 and 44, the actual area of the outlet end of the second through hole 1376 may be less than or equal to the actual area of the outlet end of the first through hole 1375. Well, so that the actual area of the effective communication area between the sound adjustment hole 1313 and the back cavity 300 may be less than or equal to the actual area of the effective communication area between the pressure relief hole 1312 and the back 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 . At this time, the longitudinal dimension of the outlet end of the sound adjustment hole 1313 may be equal to the longitudinal dimension of the outlet end of the pressure relief hole 1312 and/or The thickness dimension may be equal to the thickness dimension of the outlet end of the pressure relief hole 1312 . In this way, by adjusting the size of the communication hole, the actual area of the effective communication area between the back cavity 300 and the outside of the earphone 10 in the sound adjustment hole 1313 and the pressure relief hole 1312 can be adjusted. In addition to meeting the acoustic design requirements for the sound adjustment hole 1313 and the pressure relief hole 1312, the difference in appearance between the sound adjustment hole 1313 and the pressure relief hole 1312 is not large, and the appearance match is improved, so that they can use the same specification acoustic resistance mesh. It can be enabled to reduce the variety of materials and avoid material confusion. Of course, in some other embodiments, the size of the sound adjustment hole 1313 may be set to a second size to increase the visual difference from the pressure relief hole 1312 and improve the visual distinction. may change as the communication hole 1376 changes. In addition, the porosity of the second acoustic resistance mesh 1384 may be less than or equal to the porosity of the first acoustic resistance mesh 1383, whereby the effective area of the effective communication region between the sound adjustment hole 1313 and the back cavity 300 is may be less than or equal to the effective area of the effective communication area between pressure relief hole 1312 and back cavity 300 .

Furthermore, the effective communication area between the pressure relief hole 1312 and the back cavity 300 (for example, the first communication hole 1375) may have a first center (denoted as O1) in the longitudinal direction, The effective communication area (eg, second communication hole 1376) between hole 1313 and back cavity 300 may have a second center (denoted as O2) in the longitudinal direction, and the second center is , may be further from the center (eg, O0) of the sound emitting hole 1311 than the first center in the longitudinal direction, i.e., may be closer to the third sidewall 13723, thereby allowing the sound adjusting hole 1313 and the sound emission hole 1311 as large as possible, and between the sound output to the outside of the earphone 10 through the sound adjustment hole 1313 and the sound transmitted to the ear through the sound emission hole 1311 to reduce the anti-phase cancellation of .

It should be noted that the center of a hole or opening described in the present application refers to a position where the distance to the perimeter of the closed curve surrounding the hole or opening is the same. For regular shapes such as circles, rectangles, etc., the center of the holes or openings described herein may be their geometric center. For other irregular shapes, the center of the hole or opening described herein may be its centroid.

As shown in FIG. 48, the sound transmitted to the outside of the earphone 10 through the first aperture 201 may simply be regarded as the first sound generated by the monopole sound source A1, and the second aperture The sound transmitted to the outside of the earphone 10 through 301 may simply be regarded as the second sound produced by the monopole sound source A2, the second sound and the first sound being opposite in the far field. They may be out of phase so that they cancel each other out of phase, or become an "acoustic dipole", reducing sound leakage. Preferably, in the worn state, the connecting line of the two monopole sound sources may be directed just at the ear canal (denoted as "listening position") so that the user can hear sufficiently loud sounds. The magnitude of the sound pressure at the listening position (denoted as Pear) may characterize the strength of the voice heard by the user. Furthermore, the strength of the sound leakage to the far field of the earphone 10 may be characterized by statistically calculating the sound pressure magnitude (denoted as Pfar) on a sphere centered at the user's listening position. Pfar can be obtained by various statistical methods. For example, the average value of the sound pressure at each point on the spherical surface is obtained, and further, for example, the sound pressure distribution at each point on the spherical surface is obtained and surface integration is performed. Obviously, the sound pressure Pear transmitted from the earphone 10 to the user's ear should be large enough to improve the listening effect. The far-field sound pressure Pfar should be small enough to improve the sound leakage reduction effect. Therefore, the parameter α can be used as an index for evaluating the sound leakage reduction/auditory effect of the earphone 10:

Furthermore, when the earphone 10 is worn, the orthographic projection of the holding part 13 on the ear is mainly within the range of the helix. contacts the antihelix on the anterior side of the part. At this time, the first opening 201 is located between the antihelix and the base of the ear, and can transmit sound to the ear canal. Furthermore, since the conchal cavity and the conchal sac have a certain depth and communicate with the ear canal, the sound transmitted from the first opening 201 to the outside of the earphone 10 can be transmitted to the ear canal. , the orthographic projection at the ear of the first opening 201 may fall at least partially within the conchaal space and/or the conchal navula. In addition, as shown in FIGS. 49 and 50, the ear corresponds to a baffle installed near the listening position, and converges, reflects, etc. the sound transmitted to the outside of the earphone 10. and further modifies the sound field distribution, which not only helps to increase the sound pressure at the listening position, but also helps to decrease the sound pressure in the far field. Specifically, the listening position is placed between the baffle and the monopole sound source A1, and the baffle distorts the sound field distribution and further increases the sound pressure at the listening position. At the same time, it still leaves a large area anti-phase cancellation region in the whole sound field to reduce the far-field sound pressure. Note that the user's head may be part of the baffle. Furthermore, the ear can achieve an effect similar to an acoustic mirror because the distance from the two monopole sources to the ear can be much smaller than the size of the ear.

From long-term research, the inventors of the present application found that in a theoretical model based on the fitting of an acoustic dipole and a baffle, as shown in FIG. A2) and the normal to the baffle, the distance d between the two monopole sources, the distance D between the monopole source A1 and the listening position, the length L of the baffle, and its listening sound. It turned out that it is affected by the factor of the distance B between the positions. When the included angle θ and the interval d are constant, the larger the length L of the baffle and the smaller the distance B, the smaller the parameter α, ie, the higher the effect of reducing sound leakage. Based on the above related description, the user's ears may be regarded as baffles, the length L is relatively well-defined, for example about 50-80mm, and the distance B is about zero. Furthermore, in order to increase the sound pressure at the listening position and improve the listening effect, the first opening 201 is generally as close as possible to the ear canal, i.e. the distance D is generally as small as possible, e.g. The distance between the center of the first opening 201 and the center of the ear canal is 16 mm or less. is 19 mm or more. Furthermore, if the interval d is too small, the sound pressure at the listening position becomes small, making it difficult to listen to the sound. If the distance d is too large, the sound pressure in the far field increases, making it difficult to reduce sound leakage. Additionally, the actual size of the retainer 13 must be considered. Therefore, the distance between the center of the second opening 301 and the center of the first opening 201 may be between 7 mm and 15 mm. In a specific example, the distance between the second opening 301 and the center of the first opening 201 may be 9mm.

Furthermore, as shown in FIG. 52, referring to "no baffle", "with baffle" obviously helps to reduce the parameter α, that is, to improve the sound leakage reduction effect. When the included angle θ=0°, the parameter α reaches the minimum value and the optimum sound leakage reduction effect is obtained. In the present application, the included angle θ may be within the range of ±80°. Preferably, the included angle θ may be within the range of ±40°. More preferably, the included angle θ may be within the range of ±20°. Referring to FIG. 47, considering that the second opening 301 is generally located on the side of the first opening 201 away from the ear canal, the included angle θ can only take positive values.

Illustratively, as shown in FIGS. 53 and 47, one three-dimensional reference coordinate system (X 'Y'Z') can be established, so the included angle θ between the connecting line between the two monopole sources and the normal to the baffle is the connecting line A1-A2 and X', Y It can be determined by the included angle between the ', Z' axes. Based on the above related discussion, the connecting line A1-A2 between the two monopole sources is also between the center of the second aperture 301 (eg O1) and the center of the first aperture 201 (eg O0) can be regarded as a connecting line (denoted as O1-O0). Based on this, the included angle θ1 between the connecting line O1-O0 and the sagittal plane may be 10° or more, preferably the included angle θ1 may be 30° or more. The included angle θ2 with the coronal plane may be greater than 0°, preferably the included angle θ2 may be 4° or greater. The included angle θ3 with the horizontal plane may be 80° or less, preferably 60° or less. In a specific example, the three included angles θ1, θ2 and θ3 may be 34°, 5° and 56° respectively.

In addition, when the earphone 10 is in the worn state, the holding part 13 can be tightly attached to the front side of the ear, and the first opening 201 thereon can also face the ear, so that the baffle may be simply considered to be perpendicular to the mean normal of the first aperture 201 . Based on this, the included angle between the connecting line O1-O0 and the reference plane perpendicular to the average normal of the first opening 201 may be between 25° and 55°. The formula for calculating the aforementioned average normal is as follows.

During the ceremony,

is the above average normal, and

is the normal to any point on the surface and ds is the microplane.

Obviously, if the first opening 210 is planar, the reference plane perpendicular to the mean normal is the tangent plane of the first opening 201 . Accordingly, the average normal may be parallel to the vibration direction of the core 14 and the thickness direction. Accordingly, the included angle between the connecting line O1-O0 and the aforementioned vibration directions may be between 0° and 50°, preferably between 0° and 40°.

Further, based on the above related discussion, the ear may simply be viewed as a baffle that mates with an acoustic dipole and defines a reference plane based on at least three non-collinear physiological positions in front of the ear. For example, the connecting line between the upper base of the ear, the intertracheal notch and the Darwin's node is the reference plane (denoted LA-LB-LD) for describing the aforementioned baffles. can be formed. Based on this, the included angle between the connecting line O1-O0 and the aforementioned reference plane may be between 23° and 53°. In a specific example, the included angle between the connecting line O1-O0 and the aforementioned reference plane may be 38°.

Furthermore, when the earphone 10 is worn, the earphone 10 is in contact with the ear at a plurality of contact points to ensure the stability of wearing. As a matter of course, in the embodiment in which the elastic portions 112 are installed on the hook-shaped portions 11, there is a possibility that a certain deviation exists in such a corresponding relationship due to elastic deformation of the elastic portions 112 before and after attachment. , such a deviation can be controlled by the deformation performance of the elastic portion 112 . Therefore, for convenience of explanation, such deviations are considered acceptable. Illustratively, as shown in FIGS. 31 and 59, the free end of retainer 13 remote from fixation assembly 20 has a first reference point (eg, CP0) for contacting the front side of the ear. The fixation assembly 20 may have a second reference point (e.g., CP3) for contacting the upper base of the ear and a third reference point (e.g., CP3) for contacting the ear behind the ear. , CP6), and the connecting lines between two each of the first, second and third reference points are reference planes (CP0 -CP3-CP6) can be formed. Based on this, the included angle between the connecting line O1-O0 and the aforementioned reference plane may be between 15° and 45°. In a specific embodiment, the included angle between the connecting line O1-O0 and the aforementioned reference plane may be 30°.

In addition, compared to the baffle, the surface of the front side of the ear is flat and has a non-regular structure. It is a thing. Actual measurements may be measurements taken after the earphone 10 is installed in the simulator (eg, GRAS 45BC KEMAR).

As is well known, the frequency range of sounds that can be heard by healthy people is 20 Hz to 20 kHz, but not all of these sounds are audible. In general, the ears of healthy people mainly hear sounds with a frequency of 4 kHz or less. Based on this, on the one hand, in order to make the frequency response curve of the first sound as flat as possible in the frequency band above medium and high frequencies, and improve the listening effect, the first sound is transmitted to the outside of the earphone 10 through the first opening 201. The resonant frequency of the first sound that is generated may be offset to as high a frequency as possible. On the other hand, the resonant frequency of the second sound transmitted out of the earphone 10 through the second opening 301 may also be offset to as high a frequency as possible. Thereby, not only can the user's sensitivity to sound leakage be reduced, but also the anti-phase cancellation can be extended to the high frequency band to reduce sound leakage without affecting the listening effect. Therefore, the frequency response curve of the first sound is the first intermediate peak, which has the lowest frequency among all the resonance peaks in the frequency band above the middle and high frequencies of the frequency response curve formed by the first opening 201 . It may have a high frequency lowest resonance peak. Similarly, the frequency response curve of the second sound has the lowest frequency among all the resonance peaks in the frequency band above the middle to high frequencies of the frequency response curve formed by the second aperture 301. It may have a medium and high frequency lowest resonance peak. Briefly, the frequency response curve of the first sound may have a first resonant peak with the lowest frequency in the mid-high and higher frequency band. Similarly, the frequency response curve of the second sound may have a second resonance peak with the lowest frequency in the mid-high and higher frequency band. The peak resonance frequencies of the first middle-high frequency lowest resonance peak and the second middle-high frequency lowest resonance peak may be 5 kHz or more. Preferably, both the peak resonance frequencies of the first medium-high frequency lowest resonance peak and the second medium-high frequency lowest resonance peak may be 6 kHz or more. Furthermore, by setting the difference between the peak resonance frequency of the first medium-high frequency lowest resonance peak and the peak resonance frequency of the second medium-high frequency lowest resonance peak to 1 kHz or less, the second voice and the first voice are distant. It achieves better anti-phase cancellation in the field.

In the present application, the frequency range corresponding to the low frequency band may be 20 to 150 Hz, the frequency range corresponding to the intermediate frequency band may be 150 to 5 kHz, and the frequency corresponding to the high frequency band The range may be 5k-20kHz. The frequency range corresponding to the mid-low frequency band may be 150-500 Hz, and the frequency range corresponding to the mid-high frequency band may be 500-5 kHz. For the frequency response curves described herein, the horizontal axis represents frequency, and the unit is Hz. The vertical axis represents intensity, and its unit is dB. Furthermore, the first medium-high frequency lowest resonance peak may include a resonance peak due to resonance of the cavity, and may include a standing wave peak due to reflection from the cavity surface of the cavity. The same applies to the second middle-high-frequency lowest resonance peak, and the description thereof is omitted here.

Based on the above detailed description, the user mainly listens to the first sound when wearing the earphone 10, so the peak resonance frequency of the first medium-high frequency lowest resonance peak has a large effect on the listening effect. Therefore, the listening effect is improved by researching the first medium-high frequency lowest resonance peak. The resonance peaks in the mid-high frequency and higher frequency bands of the first sound frequency response curve may be mainly derived from the cavity resonance, which generally satisfies the formula for calculating the resonance frequency of the Helmholtz resonant cavity.

where f0 is the resonant frequency of the cavity resonance, _c0 is the speed of sound in air, S is the actual area of the first opening 201, and V is the volume of the front cavity 200. , l is the length of the first opening 201 and r is the equivalent radius of the first opening 201 . where l generally depends on the thickness of the case.

Obviously, the larger the actual area of the first opening 201 and the smaller the volume of the front front cavity 200, the higher the resonance frequency corresponding to the cavity resonance, i.e. the higher the frequency of the first middle and high frequency lowest resonance peak. easy to offset. In addition, the first opening 201 is generally further covered with an acoustically resistant mesh to improve waterproof and dustproof performance and adjust the frequency response curve. Illustratively, the effective area of the first opening 201 may be 2 mm ² or more. In a specific example, the actual area of the first opening 201 may be 7 mm ² or more, and the porosity of the acoustic resistance mesh covered thereon may be 13% or more, and/or the dimensions of the voids may be 18 μm or greater. Furthermore, the volume of the front cavity 200 may be 90 mm ³ or less. Here, the volume of the front cavity 200 may be the product of the area of the vibrating membrane 143 and the depth of the core 14 of the front cavity 200 in the vibrating direction. Based on this, it is preferable that the depth of the front cavity 200 in the aforementioned vibration direction is as small as possible on the premise that the vibration stroke of the vibrating membrane 143 is satisfied after the specification of the core 14 is selected. Therefore, the maximum depth of the front cavity 200 in the aforementioned vibration direction may be 3 mm or less, preferably 1 mm or less.

Furthermore, as shown in FIG. 54, when the front cavity 200 is configured in a cubic structure, the cavity surface of the front cavity 200 forms at least a pair of parallel or substantially parallel reflecting surfaces, and further forms a standing wave. . Specifically, when a sound wave is reflected within the cavity, the incident and reflected waves overlap to form fixed antinodes and nodes, thereby giving rise to standing waves at specific frequencies. In other words, the resonance peaks in the medium-high and higher frequency bands of the frequency response curve of the first sound can also be derived from standing waves, which generally satisfy the formula.

n takes a positive integer.

where f0 is the frequency of the standing wave peak, _c0 is the speed of sound in air, and L is the distance between the center of the first aperture 201 and the cavity surface of the front cavity 200. .

Clearly, the smaller the distance L, the higher the frequency corresponding to the standing wave peak, ie, the more likely the first mid-high frequency lowest resonance peak is offset to a higher frequency. Illustratively, the distance between the center of the first opening 201 and the cavity surface of the front cavity 200 on the reference plane perpendicular to the vibration direction of the core 14 (for example, the plane on which Y1Z1 is positioned) is 17.15 mm. It may be below.

Based on the above related discussion, the front cavity 200 includes a first front cavity surface 202 spaced apart longitudinally of the core 14 , a third front cavity surface 204 spaced apart longitudinally of the core 14 , and a front cavity surface 204 spaced apart longitudinally of the core 14 . It may have a second front cavity surface 203, a fourth front cavity surface 205, which are flat. The first front cavity surface 202 is closer to the connecting portion 12 than the third front cavity surface 204, the fourth front cavity surface 205 is closer to the ear canal than the second front cavity surface 203, and the first may be greater than or equal to the spacing between the second front cavity surface 203 and the fourth front cavity surface 205 . Further, the vertical distances from the center of the first opening 201 to the first front cavity surface 202, the second front cavity surface 203, the third front cavity surface 204 and the fourth front cavity surface 205 are each the first , a second distance L2, a third distance L3 and a fourth distance L4. Then, assuming that the four vertical distances satisfy the following basic relationship: L1≧L2≧L3≧L4, the frequencies corresponding to the corresponding standing wave peaks satisfy the following relationship: f1≦f2≦ f3≤f4. Clearly, the first standing wave peak in the mid-high and higher frequency bands of the first voice is determined by the largest of the four vertical distances, and thus may be L1≤17.15. . Illustratively, 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, such that the first opening 201 is positioned closer to the ear canal. Get close.

Note that the first opening 201 may face the vibrating film 143 in the vibrating direction of the core 14 . The ratio to the dimension in the axial direction may be 3 or less, for example the first openings 201 are configured circularly and further for example the first openings 201 are configured track-like.

As shown in FIG. 55, the earphone 10 may further include a Helmholtz resonant cavity 400 in communication with the front cavity 200, the Helmholtz resonant cavity 400 configured to attenuate the peak resonance intensity of the first mid-high frequency lowest resonance peak. That is, by absorbing acoustic energy near the peak resonant frequency of the front cavity 200, the surge in peak resonant intensity is suppressed, the frequency response curve is flatter, and the sound quality is more even. Exemplarily, as shown in FIG. 56, the peak resonance intensity of the first middle-high frequency lowest resonance peak when the opening of the Helmholtz resonance cavity 400 communicating with the front cavity 200 is in an open state (denoted as “HR_Y”). and the peak resonance intensity of the first middle-high-frequency lowest resonance peak when the opening of the Helmholtz resonance cavity 400 communicating with the front cavity 200 is in the closed state (denoted as "HR_N") is 3 dB or more. good too. Additionally, the frequency response curve is further adjusted by further placing an acoustically resistive mesh in the opening where the Helmholtz resonant cavity 400 communicates with the front cavity 200 . The acoustic resistance mesh may have a porosity of 3% or more.

Additionally, the number of Helmholtz resonant cavities 400 may be multiple to better absorb acoustic energy near the peak resonant frequency of the front cavity 200 . A plurality of Helmholtz resonant cavities 400 may be configured in parallel with the front cavity 200 , eg, each communicating with the front cavity 200 . Alternatively, a plurality of Helmholtz resonant cavities 400 may be configured to be connected in series with the front cavity 200, eg, communicating with the front cavity 200 through one of them.

In some embodiments, the Helmholtz resonant cavity 400 may be located within the second region 13B, eg, within the flexible covering structure 132, as shown in FIG. Specifically, the blind hole 1321 in the flexible covering structure 132 can double as a Helmholtz resonant cavity 400 in addition to providing a deformation space for the flexible covering structure 132 . Accordingly, a communication hole is left in the cover plate 1316 to communicate the Helmholtz resonance cavity 400 and the front cavity 200 .

In some other embodiments, as shown in FIG. 41, the Helmholtz resonant cavity 400 may be placed within the connection 12, for example between the third case 122 and the first case 1314. Installed. Specifically, a first flange is installed on the inner wall surface of the first case 1314 facing the third case 122, and the third case 122 is pressed against the first flange, thereby forming the Helmholtz resonance cavity 400. formed around the Alternatively, a second flange is installed on the inner wall surface of the third case 122 facing the first case 1314, and the first case 1314 is pressed against the second flange to surround the Helmholtz resonant cavity 400. Form. Briefly, the Helmholtz resonant cavity 400 can be formed by engaging the third case 122 with the first case 1314 . Additionally, the Helmholtz resonant cavity 400 may be formed by a blow molding process and further positioned and secured within the connecting portion 12 .

Based on the above detailed description, the back cavity 300 also adopts the same or similar technical solutions as the front cavity 200 to offset the resonance frequency of the second sound as high as possible. well, the explanation is omitted here. Compared with the front cavity 200, mainly for the standing wave, the back cavity 300 further breaks the high pressure region of the sound field in the back cavity 300, thereby shortening the wavelength of the standing wave in the back cavity 300. Furthermore, it is different in that the peak resonance frequency of the second medium-high frequency lowest resonance peak can be increased as much as possible. As shown in FIG. 47, the third opening 302 may be placed in a high pressure region of the acoustic field in the back cavity 300, eg, the third opening 302 and the second opening 301 are opposite each other in the core 14. located on both sides of the As an example, as shown in FIG. 58, the peak resonance frequency of the second middle-high-frequency lowest resonance peak when the third opening 302 is in the open state (denoted as “Turn-on”) is The peak resonance frequency of the second medium-high frequency lowest resonance peak when the opening 302 is in a closed state (denoted as “Turn-off”) is offset to a higher frequency, and the offset amount may be 1 kHz or more. . In addition, the effective area of the third opening 302 may be smaller than the effective area of the second opening 301 to adjust the peak resonant frequency of the second mid-high frequency lowest resonant peak. Of course, the dimension of the second opening 301 in the longitudinal direction of the core 14 may be larger than the dimension of the first opening 201 in the longitudinal direction of the core 14 .

Based on the above related discussion, as shown in FIG. 57, the back cavity 300 has a first back cavity surface 303 and a second back cavity surface 304 spaced apart from each other along the longitudinal axis of the core 14. Alternatively, the second opening 302 and the third opening can be spaced apart from each other along the minor axis of the core 14 . The actual area of the third openings 302 may be less than the actual area of the second openings 301 such that the effective area of the third openings 302 is less than the effective area of the second openings 301. may At this time, the segment adjacent to the third opening 302 of at least one of the first back cavity surface 303 and the second back cavity surface 304 is arranged in an arc when observed along the vibration direction of the core 14. , thereby avoiding the appearance of sharp structures such as right angles, sharp angles, etc. on the inner wall of the surrounding back cavity 300, and further helping to eliminate standing waves. Furthermore, at least one of the first cavity surface 303 and the third cavity surface 305 may be arranged in an arc when viewed along the aforementioned minor axis direction, also eliminating standing waves. help to do

Further, the opening direction of the second opening 301 may be toward the top of the user's head, for example, the included angle between the opening direction and the vertical axis is 0° to 10°, thereby The opening 301 is farther from the ear canal than the third opening 302, and it is difficult for the user and other people in the surrounding environment to hear the sound output from the second opening 301 to the outside of the earphone 10, thereby making the sound Reduce leakage. The opening direction of the second opening 301 may be the direction in which the average normal is located. Accordingly, the second opening 301 may have a first center (e.g., O1) in the longitudinal direction of the core 14 and the third opening 302 may have a second center in the longitudinal direction. may have a center (eg, O2), and the second center is further from the center of the first opening 201 than the first center in said longitudinal direction, thereby providing a third The distance between the opening 302 and the first opening 201 is made as large as possible, and the sound output from the third opening 302 to the outside of the earphone 10 and the sound transmitted from the first opening 201 to the ear are minimized. to reduce out-of-phase cancellation between The first back cavity surface 303 is closer to the connecting portion 12 than the second back cavity surface 304 , and the radius of curvature of at least a portion of the segment of the first back cavity surface 303 is greater than that of the second back cavity surface 204 . may be greater than the radius of curvature of the corresponding segment of .

Illustratively, the first backcavity surface 303 may include a first sub-backcavity surface 3031, a second sub-backcavity surface 3032, and a third sub-backcavity surface 3033 connected in sequence. One sub-backcavity surface 3031 may be closer to the second opening 301 and further from the second backcavity surface 304 than a third sub-backcavity surface 3033 . Of the second sub back cavity surface 3032 and the third sub back cavity surface 3033, at least the second sub back cavity surface 3032 may be arranged in an arc shape. For example, the second sub-back cavity surface 3032 is arranged in an arc shape and has an arc radius of 2 mm or more. At this time, in the direction from the second opening 301 to the third opening 302, the included angle between the tangent to the second sub-back cavity surface 3032 and the minor axis direction of the core 14 gradually increases. The included angle between the tangent to the sub-backcavity surface 3033 of and the aforementioned short axis direction is constant or gradually decreases.

It should be noted that the fixing assembly 20 according to the present application is connected to the holding portion 13, and the holding portion 13 is brought into contact with the front side of the ear portion mainly in the worn state. Based on this, in some embodiments, the fixation assembly 20 may include a hook-like portion 11 and a connecting portion 12 connecting the hook-like portion 11 and the retaining portion 13, and the associated structures and their connections. The relationship can refer to the detailed description of any embodiment of the present application and is omitted here. In some other embodiments, referring to FIG. 59, the fixation assembly 20 may be annularly positioned and wrapped around the ears, for example, as shown in FIG. 59(a). For example, as shown in FIG. 59(b), it may be configured to have an ear hook type and rear hook type structure and be wrapped around the rear side of the head. For example, as shown in FIG. 59(c), it may be formed into a head beam structure and wound around the top of the head. Moreover, the technical solutions of the present application may be applied not only to earphones, but also to hearing aids, audio glasses or other smart glasses such as AR, VR, MR, etc.

The above description is only a part of the embodiments of the present application, and is not intended to limit the scope of protection of the present application. All direct or indirect applications to other related technical fields are also included within the patent protection scope of the present application.

REFERENCE SIGNS LIST 10 earphone 11 hook-shaped part 12 connecting part 13 holding part 14 core 15 motherboard 16 battery 17 extending part 20 fixing assembly 112 elastic part 117 lead wire 121 rotating shaft mechanism 131 core case 132 flexible covering structure 133c partition plate 134 boom microphone 1311 sound emission hole 1312 pressure release hole 1313 sound adjustment hole 1316 cover plate 200 front cavity 300 back cavity

Claims (25)

a hook-shaped portion;
a holding part;
a connection;
wherein, in a wearing state, the hook-shaped part is hung between the back side of the user's ear and the head, the holding part is in contact with the front side of the ear, and the connecting part is connected to the connecting the hook-shaped portion and the holding portion, extending from the head portion to the outside of the head portion, and providing the holding portion with a pressing force against the front side of the ear portion in cooperation with the hook-shaped portion; ,earphone. In the direction from the first connection point between the hook-shaped part and the connecting part to the free end of the hook-shaped part, the hook-shaped part is bent toward the rear side of the ear part, and the The holding portion contacts the rear side of the ear portion at a first contact point, the holding portion contacts the front side of the ear portion at a second contact point, and extends along the extending direction of the connecting portion in a natural state. The distance between the first contact point and the second contact point is the distance between the first contact point and the second contact point along the extending direction of the connecting portion in the mounted state. 2. An earphone according to claim 1, wherein the distance is less than the distance, thereby providing the retainer with a pressing force against the front side of the ear. The hook-shaped portion further contacts the rear side of the ear portion at a third contact point, the third contact point being located between the first connection point and the first contact point. and the distance between the projections of the first contact point and the third contact point in the natural state close to the first connection point on a reference plane perpendicular to the extending direction of the connection part, 3. The method according to claim 2, wherein the distance between projections of the first contact point and the third contact point in the mounted state on a reference plane perpendicular to the extending direction of the connection portion is smaller than the distance between the projections. earphones. In the direction from the first connection point between the hook-shaped part and the connecting part to the free end of the hook-shaped part, the hook-shaped part is bent towards the head and connected to the head. Contact is made at a first contact point and a second contact point, and the first contact point is the second contact point such that the hook-shaped portion forms a lever structure with the first contact point as a fulcrum. and the first connection point, and the force exerted by the head at the second contact point directed outward of the head is controlled by the lever structure at the first connection point. 2. The earphone according to claim 1, wherein the force is converted into an acting force directed toward the head, and the connecting portion provides the holding portion with a pressing force against the front side of the ear portion. 2. The earphone of claim 1, wherein the retainer extends and is retained within the turbinate of the ear. An elastic wire having a long axis direction and a short axis direction perpendicular to each other in its cross section is installed inside the hook-shaped part, and the dimension of the elastic wire in the long axis direction is equal to the short axis direction of the elastic wire. 2. The earphone according to claim 1, characterized in that the hook-like portion cooperates with the retaining portion to elastically clamp the ear portion by being larger than the dimension. 7. The earphone according to claim 6, wherein the ratio of the dimension of the elastic wire in the major axis direction to the dimension of the elastic wire in the minor axis direction is 4:1 to 6:1. The elastic wire is arcuate in the short axis direction, and the ratio of the arc height to the lengthwise dimension of the elastic wire is in the range of 0.1 to 0.4. The earphone according to claim 6, wherein Further comprising an extension part, the extension part being installed in the holding part, and in the wearing state, any one of the conchaal cavity, the conchal navicular, the trigone fossa and the navicular fossa of the ear part 2. The earphone according to claim 1, wherein the extension part is installed on the hook-shaped part and hooks the helix and/or the anti-helix of the ear part when worn. The side of the holding part that contacts the user's skin when worn is defined as the inner surface, the side opposite to the inner surface is defined as the outer surface, and the side of the holding part that faces the ear canal of the ear is defined as the lower surface. , the side opposite to the bottom surface is defined as an upper surface, and the side of the holding portion facing the rear side of the ear portion is defined as a rear surface, and the extension portion is defined by the inner surface, the lower surface, the upper surface, and the rear surface. 10. The earphone according to claim 9, wherein the earphone is placed in any one of. 10. The earphone according to claim 9, wherein the extending portion is detachably connected to the holding portion. 11. The earphone according to claim 10, wherein the extension part is fitted in the holding part with an elastic sleeve. 2. The earphone according to claim 1, wherein the connecting portion is connected to a lower edge of the holding portion in a worn state. The earphone according to claim 1, wherein the holding part is provided with a core, and the holding part has a multi-stage structure for adjusting the relative position of the core in the overall structure of the earphone. The holding section includes a first holding stage, a second holding stage and a third holding stage connected in order, and one end of the first holding stage remote from the second holding stage is connected to the connection and the second retaining stage is folded back in spaced relation to the first retaining stage such that the first retaining stage and the second retaining stage form a U-shaped configuration. 15. The earphone of claim 14, wherein the core is located on the third retaining stage. The holding section includes a first holding stage, a second holding stage and a third holding stage connected in order, and one end of the first holding stage remote from the second holding stage is connected to the connection the second retaining stage is bent with respect to the first retaining stage, the third retaining stage and the first retaining stage are spaced apart from each other, and the 15. The earphone of Claim 14, wherein a core is located in the third retaining stage. The holding part has a thickness direction, a longitudinal direction and a height direction that are orthogonal to each other, and the thickness direction is defined as a direction in which the holding part approaches or moves away from the ear part in a worn state. , the height direction is defined as the direction in which the holding part approaches or leaves the top of the user's head in the wearing state, is observed in a natural state, and is the direction in which the top of the user's head When viewed from the opposite side, the holding portion is spaced apart in the thickness direction from at least a segment of the hook-shaped portion adjacent to the connecting portion, the connecting portion is disposed in an arc shape, and the The earphone according to claim 1, wherein the earphone is connected between the holding part and the hook-like part. 18. The method according to claim 17, wherein in the thickness direction, a minimum distance between a segment of the hook-shaped portion adjacent to the connecting portion and the holding portion is greater than 0 and equal to or less than 5 mm. earphones. A segment of the hook-shaped portion adjacent to the connecting portion, an edge portion of the connecting portion, and an edge portion of the holding portion on the side toward the ear portion are arranged in an arc shape extending in a detour. In a reference direction that passes through an inflection point and is parallel to the longitudinal direction, at a position 3 mm away from the detour inflection point, the minimum width of the arc along the thickness direction is 1 mm to 5 mm. 18. Earphone according to claim 17. A sound emitting hole is provided on the side of the holding part facing the ear part, and in the thickness direction, the distance between the center of the sound emitting hole and the segment adjacent to the connection part of the hook-shaped part is 18. The earphone according to claim 17, characterized in that it is 3 mm to 6 mm. A side of the holding portion facing the ear portion includes a first region and a second region, the first region is provided with a sound emitting hole, and the second region is the second region. 1, and protrudes further toward the ear than the first region so that the sound emitting hole is spaced apart from the ear in a worn state, 18. The earphone according to claim 17, characterized by: The earphone according to claim 21, characterized in that, in the thickness direction, the distance between the second region and the segment of the hook-like portion adjacent to the connecting portion is 1 mm to 5 mm. 23. The earphone according to claim 22, wherein an orthographic projection along the thickness direction of a segment of the hook-like portion adjacent to the connecting portion partially overlaps the second region. 22. The earphone according to claim 21, wherein, in the thickness direction, the maximum protrusion height of the second region with respect to the first region is 1 mm or more. The earphone according to claim 1, wherein the holding portion contacts an antihelix of the ear portion.

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