Earphone

Abstract

The earphone comprises an antenna, the antenna comprises an annularly arranged radiator and a feeding point arranged on the radiator, the feeding point receives feed current, and the feed current forms first transmission current and second transmission current which are reversely transmitted in the circumferential direction of the radiator on the two sides of the feeding point. The first transmission current and the second transmission current merge in the radiator. In this way, the SAR value can be reduced, and the influence of electromagnetic waves in the earphone on the human body is reduced.

Description

Earphone

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic devices, and particularly relates to an earphone.

BACKGROUND

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

[0003] Nowadays, earphones are usually equipped with touch control circuits or touch control modules to detect whether the earphone is worn into the ear, but the wearing detection function of the earphone is not sensitive at present, and the user often occurs false touch when taking off the earphone or touching the earphone, which causes the earphone to make a wrong judgment and affects the wearing experience of the user.

[0004]

SUMMARY

[0005] To solve the above technical problems, one technical solution adopted by the present application is to provide an earphone, which comprises an ear hook and a sound generating part connected with each other, and in a wearing state, the ear hook is hung between the pinna and the head of the user, and the sound generating part is located on the front side of the pinna. The sound generating part comprises a movement core shell and a first capacitor plate, the movement core shell has a connection end connected with the ear hook and a free end away from the connection end, at least part of the free end extends into the concha cavity or abuts against the pinna, and the first capacitor plate is arranged inside the movement core shell and at least partially located at the free end. The first capacitor plate is used to detect whether the earphone is in a wearing state. The movement core shell has a length direction, a width direction and a thickness direction perpendicular to each other, the thickness direction is the direction of the movement core shell facing or away from the pinna in the wearing state, and the length direction is the direction of the movement core shell close to or away from the back of the head in the wearing state. The first capacitor plate forms a first projection in a first reference plane perpendicular to the thickness direction, and the first projection is located in a 5-equal-part region of the movement core shell closest to the free end along the length direction.

[0006] In some embodiments, the first projection is located in a 7-equal-part region of the movement core shell closest to the free end along the length direction.

[0007] In some embodiments, in the wearing state, at least part of the free end abuts against the antihelix of the pinna or the antihelix of the pinna.

[0008] In some embodiments, the first capacitor plate has a maximum distance from the outermost end of the free end along the length direction, and the ratio of the maximum distance to the overall length of the movement core shell along the length direction is less than or equal to 0.2, wherein the overall length is the distance from the free end to the connection end of the movement core shell.

[0009] In some embodiments, the core housing includes a first side wall and a second side wall spaced apart along a thickness direction, the first side wall is closer to an auricle in the wearing state than the second side wall, the first capacitor plate includes a first main body part, a second main body part spaced apart from the first main body part along the thickness direction and closer to the first side wall, and a connecting part connecting the first main body part and the second main body part and bent so that the first main body part and the second main body part are arranged non-coplanarly.

[0010] In some embodiments, the first capacitor plate forms a second projection in a second reference plane perpendicular to the length direction, the first projection includes a first sub-projection area formed by the first main body part and a second sub-projection area formed by the second main body part, and the second projection includes a third sub-projection area formed by the first main body part and a fourth sub-projection area formed by the second main body part, wherein the area of the first sub-projection area is smaller than the area of the third sub-projection area, and the area of the second sub-projection area is smaller than the area of the fourth sub-projection area.

[0011] In some embodiments, the first side wall is provided with an annular flange on a side wall surface close to the first capacitor plate, the earphone further includes a speaker and an acoustic cavity support arranged in the core housing, the annular flange cooperates with the speaker to form an acoustic front cavity, the acoustic cavity support cooperates with the speaker to form an acoustic back cavity, the first main body part is fixed to an outer peripheral surface of the acoustic cavity support, and the second main body part is fixed to an outer peripheral surface of the annular flange.

[0012] In some embodiments, the first main body part includes at least two first sub-main body parts connected along the circumference of the acoustic cavity support, and / or the second main body part includes at least two second sub-main body parts connected along the circumference of the annular flange.

[0013] In some embodiments, when the first reference plane is translated along the thickness direction, the first reference plane forms a first intersection line with the first main body part, and the length of the first intersection line increases in the direction of the first side wall towards the second side wall.

[0014] In some embodiments, when the first reference plane is translated along the thickness direction, the first reference plane forms a second intersection line with the second main body part, and the minimum length of the second intersection line is not less than the minimum length of the first intersection line.

[0015] In some embodiments, the minimum length of the second intersection line is not less than the maximum length of the first intersection line.

[0016] In some embodiments, the earphone further includes a second capacitor plate arranged on the second side wall, the second capacitor plate is used to generate a touch signal in response to a touch action of a user, and the distance between the first capacitor plate and the second capacitor plate in the length direction is not less than 4 mm.

[0017] The beneficial effects of the present application are: the first capacitor plate is arranged in the core shell of the earphone, and the core shell has a free end and a connecting end arranged along the length direction, wherein the free end extends into the concha cavity or abuts against the auricle, and the first capacitor plate is arranged in a 5-equal-part region of the core shell closest to the free end along the length direction, so that the first capacitor plate is closer to the cavity wall of the concha cavity or the position close to the auricle, so that the first capacitor plate can more accurately judge whether the free end extends into the concha cavity or abuts against the auricle of the user, and the probability of accidental touch of the user when picking up the earphone 1 can be reduced, so that the first capacitor plate can more accurately judge whether the earphone is in a wearing state, and the wearing experience of the user is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 is a front profile schematic view of the ear of a user according to the present application;

[0019] Fig. 2 is a side three-dimensional structure schematic view of an embodiment of the earphone provided by the present application;

[0020] Fig. 3 is a schematic view of the earphone embodiment shown in Fig. 2 in a wearing state;

[0021] Fig. 4 is a side three-dimensional structure schematic view of a sound generating part in the earphone embodiment shown in Fig. 2;

[0022] Fig. 5 is an exploded structure schematic view of the sound generating part shown in Fig. 4;

[0023] Fig. 6 is a cross-sectional structure schematic view of the sound generating part shown in Fig. 4 along the cross-sectional line A-A;

[0024] Fig. 7 is a structure schematic view of part of the components in the sound generating part shown in Fig. 4 along the viewing angle of the thickness direction;

[0025] Fig. 8 is a structure schematic view of the first capacitor plate of the sound generating part shown in Fig. 4 along the viewing angle of the thickness direction;

[0026] Fig. 9 is a structure schematic view of the first capacitor plate of the sound generating part shown in Fig. 4 along the viewing angle of the length direction;

[0027] Fig. 10 is another exploded structure schematic view of the sound generating part shown in Fig. 4;

[0028] Fig. 11 is still another exploded structure schematic view of the sound generating part shown in Fig. 4;

[0029] Fig. 12 is yet another exploded structure schematic view of the sound generating part shown in Fig. 4;

[0030] Fig. 13 is an enlarged schematic view of the local area C of the sound generating part shown in Fig. 11. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0032] Reference to "embodiments" in the present application means that the specific features, structures or characteristics described in combination with the embodiments can be contained in at least one embodiment of the present application. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in the present application can be combined with other embodiments.

[0033] The following is an exemplary description of the earphone embodiments to the earphone.

[0034] In combination with FIG. 1, the ear 100 of a user can include an external auditory canal 101 and an auricle 102, the auricle 102 can include physiological parts such as a concha 1024, a helix 1026 and a tragus 1027, and the auricle 102 can form a concha cavity 1021, a cymba 1022, a triangular fossa 1023 and a scapha 1025. Among them, although the external auditory canal 101 has a certain depth and extends to the tympanic membrane of the ear 100, for the convenience of description, the external auditory canal 101 specifically refers to the entrance (i.e. the ear hole) thereof away from the tympanic membrane without special indication. In addition, the concha cavity 1021, the cymba 1022 and the triangular fossa 1023 have a certain volume and depth, and the concha cavity 1021 is directly communicated with the external auditory canal 101, that is, the aforementioned ear hole can be simply regarded as located at the bottom of the concha cavity 1021.

[0035] The earphone 1 is an audio transducer capable of receiving electrical signals emitted from a media player or a receiver and converting the electrical signals into sound waves that can be heard by a user. In some embodiments, the earphone 1 can be an open earphone, such as an ear hanging earphone, a back hanging earphone or an ear clip earphone, etc.

[0036] As shown in FIG. 2 and FIG. 3, the earphone 1 can be an over-ear earphone, in some embodiments, at least a portion of the earphone 1 can be inserted into the concha cavity 1021 of the ear 100 of a user (wearer) in a wearing state, so as to improve the stability of wearing. In some embodiments, at least a portion of the sound generating part 20 of the earphone 1 can cover the pinna 102 of the ear 100 of the user, such as the position of the antihelix 1024, the cymba 1022 or the triangular fossa 1023, but does not block or visually obstruct the external auditory canal 101 of the ear 100 of the user. In some embodiments, the sound generating part 20 of the earphone 1 can also abut the position of the helix 1026. In some embodiments, the sound generating part 20 of the earphone 1 can also be attached to or abut the facial area in front of the ear of the user, and the side of the sound generating part 20 for sound generation faces the ear of the user or the external auditory canal 101 of the user.

[0037] Further, different users can have individual differences, resulting in different sizes of the ear 100, such as different shapes and sizes. In order to facilitate description and reduce (or even eliminate) individual differences of different users, a simulator containing a head and its (left and right) ear 100 can be made based on ANSI: S3.36, S3.25 and IEC: 60318-7 standards, such as GRAS 45BC KEMAR, HEAD Acoustics, B&K 4128 series or B&K 5128 series, so as to present the scenario of most users wearing the earphone 1. Taking GRAS KEMAR as an example, the simulator of the ear 100 can be any one of GRAS 45AC, GRAS 45BC, GRAS 45CC or GRAS 43AG; taking HEAD Acoustics as an example, the simulator of the ear 100 can be any one of HMS II.3, HMS II.3LN or HMS II.3LN HEC. Therefore, in this application, descriptions such as “a user wears the earphone 1”, “the earphone 1 is in a wearing state” and “in a wearing state” can refer to the earphone 1 described in this application being worn on the ear 100 of the aforementioned simulator. Of course, because different users have individual differences, the earphone 1 worn by different users can have some differences from the earphone 1 worn on the ear 100 of the aforementioned simulator, but such differences should be tolerated.

[0038] It should be noted that in the field of medicine, anatomy, etc., three basic sections of the sagittal plane, the coronal plane and the horizontal plane of the human body or human body simulator can be defined, as well as three basic axes of the sagittal axis, the coronal axis and the vertical axis. Among them, the sagittal plane refers to the section perpendicular to the ground in the front-back direction of the body, which divides the human body or human body simulator into two parts; the coronal plane refers to the section perpendicular to the ground in the left-right direction of the body, which divides the human body or human body simulator into two parts; the horizontal plane refers to the section parallel to the ground in the up-down direction of the body, which divides the human body or human body simulator into two parts. Correspondingly, the sagittal axis refers to the axis perpendicular to the coronal plane in the front-back direction of the body, the coronal axis refers to the axis perpendicular to the sagittal plane in the left-right direction of the body, and the vertical axis refers to the axis perpendicular to the horizontal plane in the up-down direction of the body. Further, the "front side of the ear" described in the present application is a concept relative to the "rear side of the ear", the former refers to the side of the ear away from the head, and the latter refers to the side of the ear towards the head, both of which are for the ear 100 of the user or the simulator. Among them, the ear 100 of the human body or human body simulator is observed in the direction of the coronal axis, as shown in FIG. 1.

[0039] As an example, in combination with FIG. 2 and FIG. 3, the earphone 1 can include the ear hook 10 and the sound emitting part 20 connected to each other. In the wearing state, the ear hook 10 can be hung between the auricle 102 of the user and the head, that is, at least part of the ear hook 10 of the earphone 1 can be located on the rear side of the ear 100, so that the earphone 1 is hung on the ear 100, and the sound emitting part 20 can be located on the front side of the auricle 102. The sound emitting part 20 can be a sound playing device, which can be used to convert electrical signals into sound signals (also referred to as "sound waves" or "sound signals") and propagate to the ear 100 of the wearer.

[0040] In some embodiments, the ear hook 10 can be provided with a battery or a circuit board and the like, or the ear hook 10 can be provided with both a battery and a circuit board. Of course, the ear hook 10 can also not be provided with a battery and a circuit board and the like, and the battery and the circuit board and the like can be installed in the sound emitting part 20.

[0041] In some embodiments, as shown in FIGS. 2 to 6, the sound emitting part 20 can include a movement core shell 210 and a first capacitor plate 220.

[0042] The core shell 210 can have a connecting end 211 connected with the ear hook 10 and a free end 212 away from the connecting end 211, at least part of the free end 212 can extend into the concha cavity 1021 or abut against the auricle 102 of the user. The first capacitor plate 220 can be arranged inside the core shell 210 and at least partially located at the free end 212 of the core shell 210, and the first capacitor plate 220 is used to detect whether the earphone 1 is in a wearing state.

[0043] In some embodiments, in the wearing state, at least part of the free end 212 can extend into the concha cavity 1021, and the first capacitor plate 220 arranged at the free end 212 can detect whether the earphone 1 is in the wearing state by detecting whether the free end 212 contacts the inner wall of the concha cavity 1021 or whether the part of the free end 212 containing the first capacitor plate 220 is close to the inner wall of the concha cavity 1021 to a certain threshold.

[0044] In other embodiments, in the wearing state, at least part of the free end 212 can abut against the auricle 102 of the user, for example, at least part of the free end 212 can abut against the helix 1026 or the antihelix 1024 of the auricle 102. The first capacitor plate 220 arranged at the free end 212 can detect whether the earphone 1 is in the wearing state by detecting whether the free end 212 contacts the auricle 102 (for example, the helix 1026 or the antihelix 1024) of the user or whether the part of the free end 212 containing the first capacitor plate 220 is close to the auricle 102 (for example, the helix 1026 or the antihelix 1024) of the user to a certain threshold.

[0045] The certain threshold can refer to the shortest distance between the part of the free end 212 containing the first capacitor plate 220 and the inner wall of the concha cavity 1021 or the auricle 102 (for example, the helix 1026 or the antihelix 1024) of the user. As an example, the certain threshold can be between 0 mm and 1 mm, that is, when the first capacitor plate 220 is close to the inner wall of the concha cavity 1021 or the auricle 102 (for example, the helix 1026 or the antihelix 1024) of the user to 1 mm or less than 1 mm, the first capacitor plate 220 in the free end 212 can correspondingly detect that the earphone 1 is in the wearing state.

[0046] In some embodiments, the certain threshold can be between 0 mm and 0.5 mm, 0 mm and 0.7 mm, or 0 mm and 2 mm, that is, when the distance between the part of the free end 212 containing the first capacitor plate 220 and the inner wall of the concha cavity 1021 or the auricle 102 (for example, the helix 1026 or the antihelix 1024) of the user is less than or equal to 2 mm, 0.7 mm or 0.5 mm, the first capacitor plate 220 in the free end 212 can correspondingly detect that the earphone 1 is in the wearing state.

[0047] In some embodiments, the first capacitive plate 220 can be a chip capacitive plate, which can convert mechanical quantities such as resistance value change or pressure change when in contact with the human body into a change in the amount of capacitive change, so as to determine whether the earphone 1 is in a wearing state. In some embodiments, the first capacitive plate 220 can be a conversion element that can convert the distance change between the first capacitive plate 220 and the target (the inner wall of the concha cavity 1021 or the user's auricle 102) into the amount of capacitive change, so as to determine whether the earphone 1 is in a wearing state according to the amount of capacitive change of the first capacitive plate 220.

[0048] In some embodiments, as shown in FIGS. 5 and 6, the earphone 1 can include a master control circuit board 201, which can be arranged inside the core shell 210, and the first capacitive plate 220 can be electrically connected with the master control circuit board 201. The electrical signal generated by the first capacitive plate 220 can be transmitted to the master control circuit board 201, and the master control circuit board 201 can further regulate and control the earphone 1 according to the electrical signal of the first capacitive plate 220.

[0049] In some embodiments, as shown in FIG. 6, the first capacitive plate 220 can be entirely located inside the core shell 210. When the free end 212 of the core shell 210 contacts or approaches the concha cavity 1021 or the user's auricle 102, it will trigger the change in the capacitance value of the first capacitive plate 220 inside the core shell 210, so that the first capacitive plate 220 can detect that the earphone 1 is in a wearing state. In this way, the first capacitive plate 220 can be protected by the core shell 210 and is not easy to be damaged by friction, and the formation of the core shell 210 can be facilitated, the process difficulty can be reduced, and the possibility of false triggering of the first capacitive plate 220 can be reduced.

[0050] Of course, in other embodiments, the first capacitive plate 220 can be partially located inside the core shell 210, and the other part can be arranged outside the core shell 210, or the first capacitive plate 220 can be entirely arranged outside the core shell 210. The first capacitive plate 220 exposed outside the core shell 210 can be only wrapped by a flexible coating, so as to contact or approach the concha cavity 1021 or the user's auricle 102 and detect whether the earphone 1 is in a wearing state. In this way, the detection sensitivity of the first capacitive plate 220 can be improved, and the accuracy of the wearing detection can be ensured.

[0051] In some embodiments, the core shell 210 has a length direction, a width direction and a thickness direction which are perpendicular to each other.

[0052] The length direction can be a direction of separation between the connection end 211 and the free end 212. The direction of separation between the connection end 211 and the free end 212 refers to the extension direction of the line between the connection end 211 and the free end 212. In some embodiments, the connection end 211 and the free end 212 can be irregular or regular circular arcs, and the extension direction of the line between the connection end 211 and the free end 212 can refer to the direction defined by a straight line perpendicular to the parallel tangent plane of the two reference points on the connection end 211 and the free end 212 with the farthest relative distance. The length direction can also be defined as the direction in which the core shell 210 approaches or moves away from the back of the head in the wearing state. As an example, the length direction can be the direction indicated by arrow X in FIGS. 2-7.

[0053] The width direction can be defined as the direction in which the core shell 210 approaches or moves away from the top of the head in the wearing state. As an example, the width direction can be the direction indicated by arrow Y in FIGS. 2-7.

[0054] The thickness direction can be the direction in which the core shell 210 faces or faces away from the auricle 102 in the wearing state. As an example, the thickness direction can be the direction indicated by arrow Z in FIGS. 2-7. The thickness direction Z can be substantially parallel to the vibration direction of the loudspeaker assembly in the sound generating portion 20, and substantially parallel refers to a spatial included angle between the two directions being less than 5°.

[0055] In some embodiments, as shown in FIG. 7, the first capacitor plate 220 can form a first projection 221 in a first reference plane perpendicular to the thickness direction Z, and the first projection 221 is located in a 5-equal region of the core shell 210 closest to the free end 212 along the length direction X. In other words, the core shell 210 can be divided into 5 equal parts along the length direction X, and the first capacitor plate 220 is disposed in one of the 1 / 5 regions closest to the free end 212 in the core shell 210. Such arrangement allows the first capacitor plate 220 to be disposed closer to the free end 212, improving the accuracy of the wearing detection, and not occupying much space of the core shell 210 in the length direction X.

[0056] If the first capacitor plate 220 extends too much along the length direction X to the region between the free end 212 and the connection end 211, especially the region near the middle of the core shell 210, the phenomenon of false triggering of wearing detection when the user is holding the earphone 1 is likely to occur. For example, if the first capacitor plate 220 extends too much along the length direction X to the middle region of the core shell 210, when the user holds the middle position between the free end 212 and the connection end 211 with the fingers to wear, the first capacitor plate 220 is likely to be triggered, causing the first capacitor plate 220 to falsely detect that the earphone 1 is in the wearing state, affecting the user's wearing experience.

[0057] Therefore, the first capacitor plate 220 is arranged in the 5th equal part of the core shell 210 closest to the free end 212 along the length direction X, which can avoid the user from touching the first capacitor plate 220 when picking up the earphone 1, so that the first capacitor plate 220 can more accurately determine whether the free end 212 extends into the concha cavity 1021 or abuts against the pinna 102 of the user, thereby making the first capacitor plate 220 more accurately determine whether the earphone 1 is in the wearing state, so as to improve the wearing experience of the user.

[0058] In some embodiments, the first projection 221 can be located in the 7th equal part of the core shell 210 closest to the free end 212 along the length direction X. In other words, the core shell 210 can be divided into 7 equal parts along the length direction X, and the first capacitor plate 220 is arranged in the 1 / 7 part of the core shell 210 closest to the free end 212. In this way, the detection area corresponding to the first capacitor plate 220 can be more concentrated at the free end 212, so as to further reduce the case that the user touches the first capacitor plate 220 when contacting other positions of the non-free end 212, thereby making the detection result of the first capacitor plate 220 more accurate, so as to improve the wearing experience of the user.

[0059] In other embodiments, in order to further improve the detection accuracy of the first capacitor plate 220, the first projection 221 can also be located in the 8th equal part or the 9th equal part of the core shell 210 closest to the free end 212 along the length direction X.

[0060] In some embodiments, as shown in FIG. 6, the first capacitor plate 220 can have a maximum distance from the outermost end of the free end 212 along the length direction X, and the ratio of the maximum distance to the overall length of the core shell 210 along the length direction X is less than or equal to 0.2.

[0061] The overall length can be the farthest distance between the free end 212 and the connecting end 211 of the core shell 210 along the length direction X, or the overall length can be the length of the straight line segment between the parallel sections perpendicular to the connecting end 211 and the two reference points on the free end 212 with the farthest relative distance. The outermost end of the free end 212 refers to the point farthest from the connecting end 211 along the length direction X, or when the free end 212 is a regular circular arc, the outermost end of the free end 212 can refer to the midpoint position of the projection of the circular arc-shaped free end on the plane perpendicular to the thickness direction Z.

[0062] For example, the outermost end of the free end 212 can be point B as shown in FIG. 6, the maximum distance of the first capacitor plate 220 from the outermost end of the free end 212 along the length direction X can be distance L1 as shown in FIG. 6, and the overall length of the core shell 210 can be distance L2 as shown in FIG. 6, wherein L1:L2≤0.2.

[0063] For example, the overall length L2 of the core housing 210 can be 26 mm, 28 mm, or 30 mm, and the maximum distance L1 can be 4 mm, 5 mm, or 6 mm. The ratio of the maximum distance L1 to the overall length L2 of the core housing 210 along the length direction X can be 0.15, 0.17, or 0.2.

[0064] If the ratio of the maximum distance to the overall length of the core housing 210 along the length direction X is greater than 0.2, it means that the first capacitor plate 220 occupies more space on the core housing 210 in the length direction X, and the detection area corresponding to the first capacitor plate 220 is more diffused to the position between the free end 212 and the connection end 211, which increases the situation that the first capacitor plate 220 is mistakenly touched and reduces the detection accuracy and sensitivity of the first capacitor plate 220. If the ratio of the maximum distance to the overall length of the core housing 210 along the length direction X is less than or equal to 0.2, the detection area corresponding to the first capacitor plate 220 is more concentrated at the free end 212, which further reduces the situation that the first capacitor plate 220 is mistakenly touched and improves the detection accuracy of the first capacitor plate 220.

[0065] In some embodiments, as shown in FIGS. 5 and 6, the core housing 210 can include a first side wall 213 and a second side wall 214 spaced apart along the thickness direction Z, and the first side wall 213 is closer to the auricle 102 than the second side wall 214 in the wearing state. The first capacitor plate 220 can include a first main body part 222, a second main body part 223, and a connecting part 224. The second main body part 223 can be spaced apart from the first main body part 222 along the thickness direction Z, and the second main body part 223 can be closer to the first side wall 213. The connecting part 224 connects the first main body part 222 and the second main body part 223, and can be bent so that the first main body part 222 and the second main body part 223 are non-coplanar.

[0066] Specifically, since the first side wall 213 is closer to the auricle 102 than the second side wall 214 in the wearing state, arranging the second main body part 223 closer to the first side wall 213 can facilitate the first capacitor plate 220 to detect whether the free end 212 contacts or approaches the inner wall of the concha cavity 1021 or the auricle 102 of the user, thereby facilitating the judgment of whether the earphone 1 is in the wearing state.

[0067] Moreover, under the connecting effect of the connecting portion 224, the first body portion 222 and the second body portion 223 are arranged in a non-coplanar manner, which can increase the arrangement area of the first capacitor plate 220 in the limited internal space of the core shell 210, thereby improving the detection accuracy and detection sensitivity of the earphone 1 to the wearing state.

[0068] In some embodiments, as shown in FIG. 6, the first body portion 222 and the second body portion 223 can be arranged in a non-coplanar manner according to the shape of the free end 212 of the core shell 210. For example, the free end 212 can have a circular arc shape or a rounded rectangular shape, and the first body portion 222 and the second body portion 223 can be arranged in a curved manner corresponding to the circular arc shape of the free end 212, so that the first body portion 222 and the second body portion 223 can be arranged as close as possible to the free end 212 of the core shell 210, thereby improving the detection sensitivity and accuracy of the first body portion 222 and the second body portion 223.

[0069] In some embodiments, as shown in FIG. 5 and FIG. 6, the first side wall 213 can be provided with an annular flange 2131 on the side wall surface close to the first capacitor plate 220. The earphone 1 can further include a loudspeaker 30 and an acoustic cavity support 40 arranged in the core shell 210. For example, the loudspeaker 30 can be an air-conduction loudspeaker 30, and the acoustic cavity support 40 can support and fix the loudspeaker 30 in the core shell 210.

[0070] The annular flange 2131 can cooperate with the loudspeaker 30 to form an acoustic front cavity 301, and the acoustic cavity support 40 can cooperate with the loudspeaker 30 to form an acoustic rear cavity 302. The sound waves generated by the loudspeaker 30 can be transmitted to the outside through the acoustic front cavity 301 and the sound hole 215 on the core shell 210. As shown in FIG. 5, the core shell 210 can further be provided with a pressure relief hole 216, and the acoustic rear cavity 302 communicates with the outside through the pressure relief hole 216. In this way, the air pushed by the back side of the diaphragm 321 can flow from the acoustic rear cavity 302 to the outside of the core shell 210, thereby preventing the pressure in the acoustic rear cavity 302 from accumulating and affecting the sound quality of the loudspeaker 30 assembly.

[0071] Specifically, the first body portion 222 can be fixed to the outer circumferential surface of the acoustic cavity support 40, and the second body portion 223 can be fixed to the outer circumferential surface of the annular flange 2131. In this way, the acoustic cavity support 40 and the annular flange 2131 are used to fix the first capacitor plate 220, which not only saves the structure for supporting the first capacitor plate 220, but also realizes functional reuse of the acoustic cavity support 40 and the annular flange 2131, thereby improving the space utilization rate in the core shell 210, reducing the size of the earphone 1, and improving the structural compactness and stability in the core shell 210.

[0072] In some embodiments, as shown in FIGS. 5, 7-9, the first body part 222 can include at least two first sub-body parts 2221 connected by bending along the circumference of the sound cavity support 40. In this way, the overall shape of the first body part 222 can be adapted to the circumferential shape of the sound cavity support 40, which on the one hand can improve the strength of the fit connection between the first body part 222 and the sound cavity support 40, and on the other hand can reduce the space occupied by the first body part 222 in the core shell 210 to reduce the overall size of the earphone 1, and further increase the area of the first capacitor plate 220 to increase the detection area and improve the detection sensitivity of the first capacitor plate 220.

[0073] For example, as shown in FIGS. 5, 7-9, the number of first sub-body parts 2221 can be two, and the two first sub-body parts 2221 can be spaced apart along the width direction Y. The two first sub-body parts 2221 can be bent along the circumference of the sound cavity support 40, and the two ends of the two first sub-body parts 2221 that are relatively far apart can abut against the sound cavity support 40, which can ensure the detection sensitivity of the first capacitor plate 220 while reducing the processing difficulty of the first capacitor plate 220. In other embodiments, in order to further improve the detection sensitivity of the first capacitor plate 220, the number of first sub-body parts 2221 can be three, four, or five, and the more the number of first sub-body parts 2221, the higher the fit adaptation degree with the sound cavity support 40, and the larger the area of the first capacitor plate 220.

[0074] In some embodiments, the sound cavity support 40 can further include a fixing mechanism (not shown) corresponding to the at least two first sub-body parts 2221, which fixes the at least two first sub-body parts 2221 to make the connection between the first body part 222 and the sound cavity support 40 more stable, thereby improving the structural stability of the core shell 210.

[0075] In some embodiments, as shown in FIGS. 5, 7-9, the second body part 223 can include at least two second sub-body parts 2231 connected by bending along the circumference of the annular flange 2131.

[0076] In this way, the overall shape of the second body part 223 can be adapted to the shape of the annular flange 2131, which on the one hand can improve the strength of the fit connection between the second body part 223 and the annular flange 2131, and on the other hand can reduce the space occupied by the second body part 223 in the core shell 210 to reduce the size of the core shell 210, and further increase the area of the first capacitor plate 220 to increase the detection area and improve the detection sensitivity of the first capacitor plate 220.

[0077] As an example, as shown in FIG. 5, FIG. 7 to FIG. 9, the number of the second sub-body parts 2231 can be two, and the two second sub-body parts 2231 can be arranged at intervals along the width direction Y. The two second sub-body parts 2231 can be bent along the circumferential direction of the annular flange 2131, and the two ends of the two second sub-body parts 2231 that are relatively far apart can abut against the annular flange 2131. In this way, the detection sensitivity of the first capacitor plate 220 is ensured, and the processing difficulty of the first capacitor plate 220 is also low. In other embodiments, in order to further improve the detection sensitivity of the first capacitor plate 220, the number of the second sub-body parts 2231 can be three, four, or five, and the like. The more the number of the second sub-body parts 2231, the higher the fitting degree of the second sub-body parts 2231 with the annular flange 2131, and the larger the area of the first capacitor plate 220.

[0078] In some embodiments, the annular flange 2131 can be provided with a fixing mechanism (not shown in the figure) corresponding to at least two second sub-body parts 2231. The fixing mechanism corresponds to fixing at least two second sub-body parts 2231, so that the connection relationship between the second body part 223 and the annular flange 2131 is more stable, thereby improving the structural stability of the movement housing 210.

[0079] In some embodiments, as shown in FIG. 9, the first capacitor plate 220 can form a second projection 225 in a second reference plane perpendicular to the length direction X.

[0080] As shown in FIG. 8 and FIG. 9, the first projection 221 can include a first sub-projection area 2211 formed by the first body part 222 and a second sub-projection area 2212 formed by the second body part 223. The second projection 225 can include a third sub-projection area 2251 formed by the first body part 222 and a fourth sub-projection area 2252 formed by the second body part 223. The area of the first sub-projection area 2211 can be smaller than the area of the third sub-projection area 2251, and the area of the second sub-projection area 2212 can be smaller than the area of the fourth sub-projection area 2252.

[0081] In the wearing state, one side of the free end 212 in the thickness direction Z is closer to the auricle 102. Therefore, the area of the first sub-projection area 2211 is set to be smaller than the area of the third sub-projection area 2251, and the area of the second sub-projection area 2212 is set to be smaller than the area of the fourth sub-projection area 2252, so that the overall size of the first projection 221 is smaller than the overall size of the second projection 225, so that the first capacitor plate 220 has a larger area extending in the thickness direction Z and a smaller area extending in the length direction X, thereby facilitating the first capacitor plate 220 to detect whether the free end 212 contacts or approaches the inner wall of the auricle 102 or the concha cavity 1021, thereby improving the detection sensitivity of the first capacitor plate 220, while reducing the false touch phenomenon and improving the detection accuracy of the first capacitor plate 220.

[0082] In some embodiments, as shown in FIGS. 6, 8 and 9, when the first reference plane is translated in the thickness direction Z, the first reference plane can form a first intersection line with the first main body portion 222. In the direction of the second side wall 214 toward the first side wall 213, the length of the first intersection line can gradually increase.

[0083] As an example, when the first reference plane is translated in the thickness direction Z to a certain position, the first intersection line can be as shown by the line segment LH in FIGS. 8 and 9. The shape of the first intersection line corresponding to the first main body portion 222 can have various forms. If the first main body portion 222 has a circular arc shape, the first intersection line is also a circular arc segment. If the first main body portion 222 has a bent shape, the first intersection line can also be a multi-segment bent line segment.

[0084] Specifically, the first main body portion 222 is configured such that the first intersection line gradually increases in the direction of the second side wall 214 toward the first side wall 213, which means that the first main body portion 222 gradually widens in the direction of the second side wall 214 toward the first side wall 213. That is, the closer the first main body portion 222 is to the first side wall 213, the longer the first intersection line is, and the wider the first main body portion 222 is.

[0085] When the user holds the earphone 1, the user usually holds the core housing 210 with two fingers along the width direction Y. Since in the wearing state, the first side wall 213 is closer to the auricle 102 than the second side wall 214, the user's fingers are closer to the second side wall 214. The first main body portion 222 is configured such that the first intersection line gradually increases in the direction of the second side wall 214 toward the first side wall 213, which means that the width of the first main body portion 222 closer to the second side wall 214 is slightly narrower than the width closer to the first side wall 213, thereby ensuring the detection sensitivity of the first main body portion 222 while reducing the false touch phenomenon when the user holds the earphone 1, thereby improving the detection accuracy of the first capacitor plate 220.

[0086] In some embodiments, as shown in FIG. 9, when the first reference plane is translated along the thickness direction Z, the first reference plane forms a second intersection line with the second main body part 223, and a minimum length of the second intersection line is not less than a minimum length of the first intersection line. The second intersection line can correspond to the shape of the second main body part 223, which can have various forms. If the second main body part 223 has a circular arc shape, the second intersection line is also a circular arc segment. If the second main body part 223 has a bent shape, the second intersection line can also be a multi-segment bent line segment.

[0087] For example, as shown by the line segment LF in FIG. 9, the minimum length of the second intersection line can be represented by the distance L3 in FIG. 9, and the minimum length of the first intersection line can be represented by the distance L4 in FIG. 9.

[0088] Specifically, because the second main body part 223 is closer to the first side wall 213 than the first main body part 222, in the wearing state, the second main body part 223 is closer to the auricle 102 than the first main body part 222, and the user is more likely to touch the first main body part 222 when picking up the earphone 1. By setting the minimum length of the second intersection line to be not less than the minimum length of the first intersection line, the minimum length of the first intersection line closer to the second side wall 214 is narrower, i.e., the overall size of the first main body part 222 is smaller, thereby further reducing the phenomenon of accidental touch when the user pinches the earphone 1. At the same time, the longer minimum length of the second intersection line indicates that the overall size of the second main body part 223 is larger, thereby ensuring the overall size of the first capacitive plate 220, and further ensuring the detection sensitivity of the first capacitive plate 220.

[0089] In some embodiments, the minimum length of the second intersection line can be not less than the maximum length of the first intersection line.

[0090] For example, as shown by the distance L3 in FIG. 9, the minimum length of the second intersection line can be represented by the distance L3 in FIG. 9, and the maximum length of the first intersection line can be represented by the distance L5 in FIG. 9. Wherein, L3 is greater than L5.

[0091] In this way, the second main body part 223 closer to the first side wall 213 has an overall width along the width direction Y that is greater than the width of the first main body part 222. In the wearing state, the second main body part 223 is closer to the auricle 102, and therefore, the second main body part 223 is set to have a larger width to have a larger area to implement the detection function, thereby facilitating the wearing detection and improving the detection sensitivity of the second main body part 223.

[0092] In some embodiments, as shown in FIG. 5 and FIG. 10, the earphone 1 can further include a second capacitive plate 50 disposed on the second side wall 214, and the second capacitive plate 50 can be used to generate a touch signal in response to a touch action of a user. As an example, the second capacitive plate 50 can be located on the side of the second side wall 214 that faces away from the inside of the core shell 210.

[0093] The second capacitive plate 50 can be a chip capacitive plate that can convert mechanical quantities such as resistance value changes or pressure changes when in contact with the human body into capacitive changes, and can generate a touch signal. The touch signal can be a control signal such as a song switching signal, a volume control signal, and a power on / off signal, so that the user can control the earphone 1 to switch songs, control the volume, or turn on / off the earphone by touching the second capacitive plate 50.

[0094] In some embodiments, the distance between the first capacitive plate 220 and the second capacitive plate 50 in the length direction X is not less than 4 mm. The distance can refer to the distance between the side of the first capacitive plate 220 closest to the connecting end 211 and the side of the second capacitive plate 50 closest to the free end 212 in the length direction X, that is, the minimum relative distance between the first capacitive plate 220 and the second capacitive plate 50.

[0095] As an example, the distance between the first capacitive plate 220 and the second capacitive plate 50 can be as shown by the distance L6 in FIG. 10. For example, the distance L6 between the first capacitive plate 220 and the second capacitive plate 50 can be 4 mm, 4.25 mm, 5 mm, or 5.5 mm, etc.

[0096] If the distance between the first capacitive plate 220 and the second capacitive plate 50 is less than 5 mm, the user is likely to touch the first capacitive plate 220 when touching the second capacitive plate 50, resulting in a false touch phenomenon. Therefore, by setting the distance between the first capacitive plate 220 and the second capacitive plate 50 to be not less than 5 mm, the false touch phenomenon can be reduced, and the detection of the first capacitive plate 220 and the touch of the second capacitive plate 50 can be more accurate, thereby improving the user's experience.

[0097] In some embodiments, as shown in FIG. 11, the earphone 1 can include an antenna 60, which can include a radiation body 610 arranged in a ring shape and a feed point 620 disposed on the radiation body 610. The feed point 620 can receive a feed current, and the feed current can form a first transmission current and a second transmission current that are transmitted in opposite directions along the circumference of the radiation body 610 on both sides of the feed point 620. The first transmission current and the second transmission current can converge in the radiation body 610.

[0098] The feeding point 620 refers to an input interface feeding the input current into the radiator 610, which can transmit the input current inside the earphone 1 into the radiator 610, and also can efficiently convert the received electromagnetic wave signal into a radio frequency signal and transmit it into the control circuit inside the earphone 1. The input current refers to the modulated high-frequency current in the earphone 1, which can be transmitted into the radiator 610 through the feeding point 620. The radiator 610 can change the electric field and the magnetic field under the action of the input current, and the electric field and the magnetic field interact to generate electromagnetic waves. Among them, the input current can carry an electrical signal representing the communication information of the earphone 1, and the earphone 1 can communicate with other electronic devices such as mobile phones or computers by controlling the input current to generate corresponding electromagnetic waves.

[0099] Specifically, the radiator 610 is arranged in a ring shape, and the input current can form first transmission current and second transmission current which are reversely transmitted along the circumference of the radiator 610 on both sides of the feeding point 620, so that the input current can be dispersed after entering the radiator 610. The arrangement of dispersed current distribution can reduce the strong points of the electric field in the radiator 610, so that the radiation absorbed by the human body is reduced, and the strong points of the electric field in the human body are further reduced. The arrangement that the first transmission current and the second transmission current are opposite and can converge in the radiator 610 can make the first transmission current and the second transmission current partially offset the electric field, thereby further reducing the electric field in the radiator 610, and further reducing the radiation energy absorbed by the human body tissue. In other words, the arrangement that the first transmission current and the second transmission current are reversely transmitted on both sides of the feeding point 620 and the two currents can converge in the radiator 610 can reduce the SAR value of the antenna 60 and reduce the influence of electromagnetic waves in the earphone 1 on the human body. Among them, the SAR value represents the electromagnetic power absorbed or consumed by the human body tissue per unit mass.

[0100] In some embodiments, the convergence area of the first transmission current and the second transmission current can coincide with the 1 / 4 target wavelength transmission path starting from the feeding point 620.

[0101] As an example, the convergence area of the first transmission current and the second transmission current can be as shown in region C in FIG. 11.

[0102] Specifically, the first transmission current and the second transmission current, after starting from the feed point 620 and entering the radiator 610, will correspondingly cause changes in the electric field and the magnetic field of the radiator 610, and then generate electromagnetic waves. Since the feed point 620 is usually a current strong point, but the target wavelength of the electromagnetic waves generated by the first transmission current and the second transmission current starting from the feed point 620 is a current weak point after walking 1 / 4 of the path, therefore, the convergence area of the first transmission current and the second transmission current of the reverse transmission is set to coincide with each other at the 1 / 4 target wavelength transmission path, so that the electric field of the first transmission current and the second transmission current can balance the current weak point at the 1 / 4 target wavelength transmission path. Moreover, the transmission directions of the first transmission current and the second transmission current are opposite, which can make the electric fields of the convergence area cancel each other out to reduce the overall SAR value.

[0103] In some embodiments, the radiator 610 can include an inner ring edge 611 and an outer ring edge 612, and the radiator 610 can be provided with a hollow area 630 connected with the inner ring edge 611 and the outer ring edge 612. The hollow area 630 connected with the inner ring edge 611 and the outer ring edge 612 on the radiator 610 can reduce the width of the radiator 610, thereby prolonging the transmission path of the fed-in current, dispersing the current distribution, and further reducing the radiation energy in the radiator 610 to reduce the SAR value, that is, to reduce the influence of electromagnetic waves in the earphone 1 on the human body. In some embodiments, in order to make the antenna 60 better adapt to the shape of the movement core shell 210, while being able to reduce the SAR value of the antenna 60, the hollow area 630 on the radiator 610 can also be connected with only the inner ring edge 611 or only the outer ring edge 612. For example, as shown in FIG. 11, the hollow area 630 connected with the inner ring edge 611 and the outer ring edge 612 of the radiator 610 can be provided on the radiator 610.

[0104] In some embodiments, the hollow area 630 can include a first hollow area 631 connected with the inner ring edge 611 of the radiator 610 and a second hollow area 632 connected with the outer ring edge 612. As shown in FIG. 11, the first hollow area 631 and the second hollow area 632 can be alternately arranged along the circumference of the radiator 610. In this way, not only can the transmission path of the fed-in current be prolonged, the current distribution be further dispersed, and the SAR value of the antenna 60 be reduced, but also the stress distribution on the surface of the antenna 60 can be balanced, and the antenna can be prevented from being broken during processing or mounting as much as possible.

[0105] In some embodiments, as shown in FIG. 11, the ratio of the width of the hollowed-out area 630 along the width direction of the radiator 610 to the width of the radiator 610 can be no greater than 1 / 2. For example, the ratio of the width of the hollowed-out area 630 along the width direction of the radiator 610 to the width of the radiator 610 can be 2 / 5, 1 / 4, 1 / 3, or 1 / 2, etc. Wherein, the width direction of the radiator 610 can refer to the direction perpendicular to the extension direction of the radiator 610, or the straight line direction of the shortest line segment between the inner ring edge 611 and the outer ring edge 612 of the radiator 610.

[0106] As an example, the extension direction of the radiator 610 at a certain position can be as shown by direction O in FIG. 11, the width direction of the radiator 610 can be as shown by direction P in FIG. 11, the width of the radiator 610 can be as shown by width D in FIG. 11, and the width of the hollowed-out area 630 along the width direction P of the radiator 610 can be as shown by width E in FIG. 11.

[0107] If the ratio of the width of the hollowed-out area 630 along the width direction of the radiator 610 to the width of the radiator 610 is set to be greater than 1 / 2, the radiation aperture of the antenna 60 will be reduced, the bandwidth will be narrowed, and the radiation communication of the antenna 60 will be affected. Therefore, by setting the ratio of the width of the hollowed-out area 630 along the width direction of the radiator 610 to the width of the radiator 610 to be no greater than 1 / 2, the radiation aperture of the antenna 60 can be ensured while prolonging the transmission path of the feeding current and reducing the SAR value, and the influence on the radiation bandwidth can be avoided as much as possible.

[0108] In some embodiments, the radiator 610 can include hollowed-out segments 613 and strip segments 614 connected to each other along the circumference of the radiator 610, the bending degree of the strip segments 614 can be greater than that of the hollowed-out segments 613, the hollowed-out segments 613 can be provided with the hollowed-out area 630, and the strip segments 614 can not be provided with the hollowed-out area 630. Wherein, the greater bending degree of the strip segments 614 can be understood as that the number of corners of the inner ring edge 611 or the outer ring edge 612 of the strip segments 614 is more, so that the strip segments 614 present multiple bending or even folding conditions. Or, the greater bending degree of the strip segments 614 refers to that the corner curvature of the inner ring edge 611 or the outer ring edge 612 of the strip segments 614 changes more abruptly.

[0109] In this way, the length of the strip segments 614 can be prolonged in the limited space, the current path of the feeding current in the radiator 610 can be prolonged, and at the same time, the hollowed-out area 630 is not arranged on the strip segments 614, so that the strip segments 614 are not easy to break, thereby enhancing the firmness and reliability of the strip segments 614, reducing the processing or mounting difficulty of the antenna 60, and improving the overall reliability of the antenna 60.

[0110] In some embodiments, as shown in FIG. 11 and FIG. 12, the earphone 1 can include a hard shell 70 and a flexible coating 80, the antenna 60 can be disposed on the outer surface of the hard shell 70, and the flexible coating 80 can cover the antenna 60 and the hard shell 70, and the flexible coating 80 can be connected to the hard shell 70 through the hollow area 630 on the radiator 610. Wherein, the outer surface of the hard shell 70 refers to the surface that faces away from the user's pinna 102 in the wearing state.

[0111] In some embodiments, the hard shell 70 can form part of the core shell 210, for example, the hard shell 70 can be the shell of the core shell 210 that is away from the user's pinna 102 in the wearing state. Alternatively, in some embodiments, the hard shell 70 can form the entire core shell 210. For example, the hard shell 70 can form the entire core shell 210, and at this time, the antenna 60 can be disposed on the side of the second side wall 214 that faces away from the inside of the core shell 210.

[0112] Specifically, disposing the antenna 60 on the hard shell 70 can facilitate the processing or mounting of the antenna 60, and can also prevent the antenna 60 from being displaced. Wrapping the antenna 60 and the hard shell 70 with the flexible coating 80 can further prevent impurities such as moisture, dust or metal particles from contacting the antenna 60, thereby ensuring the communication effect of the antenna 60. Wherein, the flexible coating 80 can be a soft coating such as silicone.

[0113] Generally, if the antenna 60 is disposed between the hard shell 70 and the flexible coating 80, it will affect the connection effect of the hard shell 70 and the flexible coating 80 to some extent, thereby easily causing the flexible coating 80 to bulge and other problems. Therefore, the setting of the hollow area 630 in the antenna 60 can make the setting area of the antenna 60 on the hard shell 70 also expose part of the outer surface of the hard shell 70, and the flexible coating 80 can be connected to the hard shell 70 through the exposed outer surface at the hollow area 630, thereby improving the connection strength of the hard shell 70 and the flexible coating 80 and reducing the problem of bulging and other problems of the earphone 1 in the case of setting the antenna 60 between the hard shell 70 and the flexible coating 80.

[0114] In some embodiments, the hard shell 70 and the flexible coating 80 can be adhered together by an adhesive such as glue. Of course, in other embodiments, the hard shell 70 and the flexible coating 80 can also be connected together by screwing or snap connection, and the present embodiment will not enumerate them one by one here.

[0115] In some embodiments, as shown in FIG. 11 and FIG. 12, the second capacitor plate 50 can be arranged on the outer surface of the hard shell 70, and the second capacitor plate 50 can also be arranged at the middle position surrounded by the annular radiator 610, and the flexible coating 80 can also cover the second capacitor plate 50, and the adhesion position of the hard shell 70 and the flexible coating 80 can be staggered with the position of the second capacitor plate 50. In this way, the space on the outer surface of the hard shell 70 can be fully utilized to improve the space utilization rate of the earphone 1, and the flexible coating 80 can also cover and protect the second capacitor plate 50, further blocking the impurities such as moisture, dust or metal particles from contacting the antenna 60, and reducing the case that the impurities in the outside world affect the touch function of the second capacitor plate 50.

[0116] In some embodiments, the area of each hollow area 630 can be between 1.5mm 2 and 4.5mm 2 . For example, the area of each hollow area 630 can be 1.5mm 2 , 1.8mm 2 , 1.9mm 2 , 2mm 2 , 2.5mm 2 , 3mm 2 , 4.2mm 2 or 4.5mm 2 , etc.

[0117] If the area of each hollow area 630 is less than 1.5mm 2 , the arrangement area of the antenna 60 on the hard shell 70 is difficult to maintain strong connection with the flexible coating 80, so that the connection between the hard shell 70 and the flexible coating 80 is not firm enough, and the problem of bulging of the flexible coating 80 occurs. If the area of each hollow area 630 is greater than 4.55mm 2 , the overall strength of the radiator 610 is poor, and since the stress of the radiator 610 is concentrated at the hollow area 630, the radiator 610 is prone to breakage after the hollow area 630 is formed.

[0118] Therefore, the area of each hollow area 630 is between 1.5mm 2 and 4.5mm 2 , which not only enables strong connection between the hard shell 70 and the flexible coating 80, but also guarantees the communication effect of the antenna 60, and makes the antenna 60 more firm.

[0119] In some embodiments, along the width direction Y of the hard shell 70, the size of the area of the hard shell 70 carrying the strip-shaped section 614 can be smaller than the size of the area carrying the hollow section 613, and the width direction Y is the direction of the earphone 1 approaching or moving away from the top of the head in the wearing state.

[0120] Since the bending degree of the strip-shaped section 614 is greater than that of the hollowed section 613, the length of the strip-shaped section 614 can be extended in a limited space, the current path of the current fed into the radiator 610 is extended, and the size of the area of the hard shell 70 carrying the strip-shaped section 614 can be set smaller compared to the size of the area of the hard shell 70 carrying the hollowed section 613, so that other electronic elements can be arranged near the area of the hard shell 70 where the strip-shaped section 614 of the radiator 610 is arranged, and the space utilization of the movement shell 210 is increased. Exemplarily, the strip-shaped section 614 can be arranged on one side of the hard shell 70 close to the free end 212, and the first capacitor plate 220 can be arranged on the outer surface of the hard shell 70 and partially surround the strip-shaped section 614.

[0121] In some embodiments, as shown in FIG. 11 and FIG. 12, the earphone 1 can include a flexible insert 90, and the hard shell 70 can form at least a part of the movement shell 210, in other words, the connecting end 211 of the hard shell 70 can be the connecting end 211 of the movement shell 210, and the free end 212 of the hard shell 70 can be the free end 212 of the movement shell 210. The arrangement area of the antenna 60 on the hard shell 70 can be located between the connecting end 211 and the free end 212, and the flexible insert 90 can be embedded in the free end 212 of the hard shell 70.

[0122] The flexible insert 90 is arranged at the free end 212 of the hard shell 70, so that when the free end 212 of the earphone 1 extends into the concha cavity 1021 or abuts against the pinna 102 of the user (for example, abuts against the antihelix 1024 or abuts against the helix 1026) in the wearing state, the ear of the user can contact the arrangement area of the flexible insert 90 in the earphone 1, so as to improve the user experience.

[0123] In some embodiments, the flexible insert 90 can also be wrapped by the flexible coating 80, and the flexible insert 90 abuts against the ear of the user through the flexible coating 80. Under the action of the flexible insert 90 and the flexible coating 80, the human body can contact the soft part of the earphone 1, so as to improve the user experience.

[0124] In some embodiments, the flexible insert 90 can be made of flexible materials such as silicone or TPE (thermoplastic elastomer).

[0125] In some embodiments, the hard shell 70 can include a protrusion 810 in the shape of a peninsula near one side of the free end 212, a base 820 connected to the protrusion 810 and near the connection end 211, and a mounting portion 830 on the periphery of the protrusion 810, and the flexible inlay 90 can be arranged on the mounting portion 830. By arranging the flexible inlay 90 and the hard shell 70 to be mutually embedded, the connection between the flexible inlay 90 and the hard shell 70 can be more stable, thereby improving the structural stability of the earphone 1.

[0126] In the width direction Y of the hard shell 70, the size of the protrusion 810 can be smaller than the size of the base 820. The strip segment 614 can be at least partially arranged on the protrusion 810, and the hollow segment 613 can be arranged on the base 820.

[0127] For example, as shown in FIGS. 11 and 12, at least part of the strip segment 614 is arranged on the protrusion 810, which can be in the shape of extending at both ends and protruding in the middle to adapt to the shape of the protrusion 810, and the two ends of the strip segment 614 are connected to the hollow segment 613 and the feeding point 620, respectively. The size of the protrusion 810 can be represented by the length F in FIG. 11, and the size of the base 820 can be represented by the length G in FIG. 11, where G is greater than F.

[0128] By arranging at least part of the strip segment 614 on the protrusion 810 with a smaller size and arranging the hollow segment 613 with the hollow area 630 on the base 820 with a larger size, the characteristics of the bending of the strip segment 614 and the characteristics of the hollowing of the hollow segment 613 can be fully utilized, not only avoiding the position of the flexible inlay 90 on the outer surface of the hard shell 70, but also increasing the current path as much as possible and improving the space utilization.

[0129] Of course, in other embodiments, the flexible inlay 90 and the hard shell 70 can be embedded by other ways. For example, the flexible inlay 90 is provided with a protruding portion, and the hard shell 70 is provided with a recessed portion in the middle, the protruding portion and the recessed portion are embedded with each other to realize the connection of the flexible inlay 90 and the hard shell 70, and the strip segment 614 can be bent and extended on both sides of the recessed portion to avoid the position of the flexible inlay 90 and also increase the current path and improve the space utilization. Of course, the flexible inlay 90 and the hard shell 70 can also have other connection modes, which will not be listed one by one here.

[0130] In some embodiments, the width of the hollow segment 613 can be greater than the width of the strip segment 614.

[0131] The width direction of the hollowed-out section 613 is perpendicular to the extension direction of the hollowed-out section 613, and the width direction of the strip-shaped section 614 is perpendicular to the extension direction of the strip-shaped section 614. The width of the hollowed-out section 613 can be consistent with the width of the part of the radiator 610 in which the hollowed-out area 630 is arranged. As an example, the width of the hollowed-out section 613 at a certain position can be shown as width D in FIG. 11, and the width of the strip-shaped section 614 at a certain position can be shown as width H in FIG. 11.

[0132] The width of the hollowed-out section 613 is greater than the width of the strip-shaped section 614, which can make full use of the bending characteristics of the strip-shaped section 614 and the hollowing characteristics of the hollowed-out section 613, facilitate the arrangement of the hollowed-out area 630 in the hollowed-out section 613, and increase the current path of the hollowed-out section 613. The width of the strip-shaped section 614 is relatively small, which can make the strip-shaped section 614 bend sufficiently to obtain a longer current extension path, thereby reducing the SAR value and improving the space utilization rate near the region where the strip-shaped section 614 is arranged.

[0133] In some embodiments, as shown in FIG. 11 and FIG. 13, the hollowed-out area 630 can include a main body area 633 and a connecting area 634. The main body area 633 can be located inside the radiator 610, and the connecting area 634 can be connected between the main body area 633 and the inner ring edge 611 or the outer ring edge 612, and the area of the connecting area 634 is smaller than the area of the main body area 633. In this way, the processing difficulty of the hollowed-out area 630 can be reduced as much as possible, while the overall strength of the radiator 610 is ensured.

[0134] In some embodiments, the connecting area 634 of the first hollowed-out area 631 can connect the main body area 633 of the first hollowed-out area 631 and the inner ring edge 611, and the connecting area 634 of the second hollowed-out area 632 can connect the main body area 633 of the second hollowed-out area 632 and the outer ring edge 612. In this way, the first hollowed-out area 631 and the second hollowed-out area 632 can be arranged alternately, and the current circuit of the radiator 610 can present an "S" shape transmission, thereby prolonging the current path in the radiator 610.

[0135] In some embodiments, the size of the main body area 633 along the circumference of the radiator 610 can be greater than the size of the connecting area 634 along the circumference of the radiator 610.

[0136] In some embodiments, the main body area 633 and the connecting area 634 can make the hollowed-out area 630 present a T-shaped arrangement or a T-like arrangement.

[0137] The circumference of the radiator 610 is the extension direction of the radiator 610 described above. As an example, the circumference of the radiator 610 at a certain position can be shown as direction Q in FIG. 13.

[0138] The connecting region 634 can be located at a middle position of the main body region 633 along the circumference of the radiator 610, so that the hollow region 630 is T-shaped. As an example, the width of the main body region 633 along the circumference can be as shown by I in FIG. 13, and the width of the connecting region 634 along the circumference can be as shown by J in FIG. 13.

[0139] In other embodiments, the connecting region 634 can be located at a left or right position of the corresponding middle axis of the main body region 633 along the circumference of the radiator 610, so that the hollow region 630 is T-shaped.

[0140] In this way, the path for feeding in the current in the radiator 610 can be longer, and the antenna 60 can be more easily manufactured, and the radiator 610 is less likely to break at the hollow region, thereby improving the reliability of the antenna 60.

[0141] Of course, in other embodiments, the hollow region 630 can also have other shapes, such as a circular shape, a triangular shape, a trapezoidal shape, or an irregular shape, and the like, which are not specifically enumerated herein.

[0142] In summary, the first capacitor plate 220 is arranged in the core shell 210 of the earphone 1, and the core shell 210 has a free end 212 and a connecting end 211 arranged along the length direction X, wherein the free end 212 extends into the concha cavity 1021 or abuts against the pinna 102, and the first capacitor plate 220 is arranged in a 5-equal-division region of the core shell 210 closest to the free end 212 along the length direction X. In this way, the first capacitor plate 220 can be closer to the concha cavity 1021 or the pinna 102 of the user, so that the first capacitor plate 220 can more accurately determine whether the free end 212 extends into the concha cavity 1021 or abuts against the pinna 102 of the user, and the probability of accidental touch when the user picks up the earphone 1 can be reduced, and the first capacitor plate 220 can more accurately determine whether the earphone 1 is in a wearing state, thereby improving the wearing experience of the user.

[0143] The above description is only an embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation based on the content of the specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection scope of the present application.

Claims

1. An earphone, characterized by, The earphone comprises ear hooks connected to each other and a sound generating part, in a wearing state, the ear hooks are hung between the auricles and the head of the user, the sound generating part is located in front of the auricle, the sound generating part comprises a core shell and a first capacitor plate, the core shell has a connection end connected to the ear hook and a free end away from the connection end, at least part of the free end extends into the concha cavity or abuts against the auricle, the first capacitor plate is arranged inside the core shell and at least part of the first capacitor plate is located at the free end, the first capacitor plate is used to detect whether the earphone is in a wearing state; The core shell has a length direction, a width direction and a thickness direction perpendicular to each other, the thickness direction is the direction of the core shell towards or away from the auricle in the wearing state, the length direction is the direction of the core shell close to or away from the back of the head in the wearing state, wherein the first capacitor plate forms a first projection in a first reference plane perpendicular to the thickness direction, and the first projection is located in a 5-equal-part region of the core shell closest to the free end along the length direction.

2. The earphone of claim 1, wherein The first projection is located in a 7-equal-part region of the core shell closest to the free end along the length direction.

3. The earphone according to claim 1 or 2, characterized in that, In the wearing state, at least part of the free end abuts against the antihelix of the auricle or the antihelix of the auricle.

4. The earphone according to any one of claims 1-3, characterized in that, The first capacitor plate has a maximum distance from the outermost end of the free end along the length direction, and the ratio of the maximum distance to the overall length of the core shell along the length direction is less than or equal to 0.2, wherein the overall length is the distance from the free end to the connection end of the core shell.

5. The earphone according to any one of claims 1-4, wherein The core shell comprises a first side wall and a second side wall spaced apart along the thickness direction, the first side wall is closer to the auricle than the second side wall in the wearing state, the first capacitor plate comprises a first main body part, a second main body part and a connecting part, the second main body part is spaced apart from the first main body part along the thickness direction, and the second main body part is closer to the first side wall, the connecting part connects the first main body part and the second main body part, and is bent so that the first main body part and the second main body part are arranged non-coplanarly.

6. The earphone of claim 5, wherein, The first capacitor plate forms a second projection in a second reference plane perpendicular to the length direction, the first projection comprises a first sub-projection area formed by the first main body part and a second sub-projection area formed by the second main body part, the second projection comprises a third sub-projection area formed by the first main body part and a fourth sub-projection area formed by the second main body part, wherein the area of the first sub-projection area is smaller than the area of the third sub-projection area, and the area of the second sub-projection area is smaller than the area of the fourth sub-projection area.

7. The earphone according to claim 5 or 6, wherein The first side wall is provided with an annular flange on a side wall surface close to the first capacitor plate, the earphone further comprises a loudspeaker and an acoustic cavity support arranged in the core shell, the annular flange cooperates with the loudspeaker to form an acoustic front cavity, the acoustic cavity support cooperates with the loudspeaker to form an acoustic back cavity, the first main body part is fixed on an outer circumferential surface of the acoustic cavity support, and the second main body part is fixed on an outer circumferential surface of the annular flange.

8. The earphone of claim 7, wherein, The first main body part comprises at least two first sub-main body parts connected in a circumferential direction of the acoustic cavity support, and / or The second main body part comprises at least two second sub-main body parts connected in a circumferential direction of the annular flange.

9. The earphone according to any one of claims 5-8, characterized in that, When the first reference plane is translated in the thickness direction, the first reference plane forms a first intersection line with the first main body part, and the length of the first intersection line increases in a direction from the second side wall to the first side wall.

10. The earphone of claim 9, wherein, When the first reference plane is translated in the thickness direction, the first reference plane forms a second intersection line with the second main body part, and the minimum length of the second intersection line is not less than the minimum length of the first intersection line.

11. The earphone of claim 10, wherein, The minimum length of the second intersection line is not less than the maximum length of the first intersection line.

12. The earphone of any one of claims 5-11, wherein, The earphone further comprises a second capacitor plate arranged on the second side wall, the second capacitor plate is used to generate a touch signal in response to a touch action of a user, and the interval distance between the first capacitor plate and the second capacitor plate in the length direction is not less than 4 mm.

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