Earpiece

Abstract

The present application discloses an earpiece. The earpiece comprises a sound production portion, an abutting portion, and an ear hook. The abutting portion comprises two first microphones, the two first microphones being used to collect first sounds. The sound production portion comprises a second microphone, the second microphone being used to collect second sounds. The earpiece further comprises a detection element and a processing circuit. The detection element is used to perform detection in a worn state to obtain a relative position relationship between the two first microphones. On the basis of a detection result, the processing circuit controls one of the two first microphones located at a relative upper position in the gravity direction to be in a working state, controls the other located at a relative lower position in the gravity direction to be in a non-working state, and further performs noise reduction processing on the basis of the first sounds and the second sounds.

Description

A headset

[0001] The present application relates to the technical field of electronic devices, in particular to a headset.

[0002] Headsets have been widely used in people's daily life, which can be used with electronic devices such as mobile phones and computers to provide sound playing function for users. Among them, the ear clip type headset is a new type of headset, which is usually small in size and can be clamped on the tragus of the wearer for use, and the ear clip type headset does not block the ear canal, which not only ensures the safety of outdoor scenes, but also is better than the in-ear headset in terms of wearing comfort.

[0003] However, the sound receiving effect of the current ear clip type headset is difficult to meet the demand.

[0004]

[0005] The present application provides a headset, which includes a sound generating part, an abutting part and an ear hook. The ear hook connects the sound generating part and the abutting part. In a wearing state, the sound generating part and the abutting part form a clamping state on both sides of the tragus, and the sound generating part is located in the concha. The abutting part includes two first microphones, which are used to collect first sound respectively. The sound generating part includes a second microphone, which is used to collect second sound. The headset further includes a detection element and a processing circuit. The detection element is used to detect the relative positional relationship of the two first microphones in the wearing state. The processing circuit controls one of the two first microphones which is relatively closer to the top along the direction of gravity to be in an active state, and controls the other one which is relatively closer to the bottom along the direction of gravity to be in an inactive state according to the detection result of the detection element, and further performs noise reduction processing based on the first sound collected by the first microphone in the active state and the second sound collected by the second microphone.

[0006] In some embodiments, the ear hook has a symmetry plane arranged along the length direction of the ear hook. The abutting part further includes a first shell. The first shell is provided with two first sound inlet holes. Each first microphone collects first sound through a corresponding first sound inlet hole. The two first sound inlet holes respectively have sound inlet ends located on the outer wall surface of the first shell. The sound inlet ends of the two first sound inlet holes are arranged on both sides of the symmetry plane.

[0007] In some embodiments, the sound inlet ends of the two first sound inlet holes are symmetrically arranged relative to the symmetry plane.

[0008] In some embodiments, the first shell includes a main body part. The main body part includes a circumferential side wall and two oppositely arranged end walls. The circumferential side wall is used to contact the back side of the tragus. The two first sound inlet holes are arranged on the two end walls of the abutting part respectively.

[0009] ​​​In some embodiments, the first shell comprises a main body part, the main body part comprises a circumferential side wall and two oppositely arranged end walls, the circumferential side wall is configured to contact the back side of the ear drum, and the two first sound inlet holes are arranged on the circumferential side wall of the abutting part and located on the side of the circumferential side wall away from the sound generating part.

[0010] In some embodiments, in the vertical direction of the symmetry plane, the shortest straight line distance between the sound inlet ends of the two first sound inlet holes is greater than or equal to 10 mm.

[0011] In some embodiments, the shortest straight line distance from the sound inlet ends of the two first sound inlet holes to the symmetry plane is greater than or equal to 5 mm.

[0012] In some embodiments, the processing circuit is further configured to perform wind noise detection based on the first sound and / or the second sound, and when it is detected that the wind noise is greater than or equal to a preset threshold, the processing circuit is further configured to control the other of the two first microphones that is relatively lower in the direction of gravity to be in an active state, and control the second microphone to be in an inactive state.

[0013] In some embodiments, the sound generating part comprises a second shell, the second shell is provided with a second sound inlet hole, the second microphone collects the second sound through the second sound inlet hole, the second sound inlet hole has a sound inlet end located on the outer wall surface of the second shell, and the minimum straight line distance between the hole along of the sound inlet end of the first sound inlet hole and the hole along of the sound inlet end of the second sound inlet hole is greater than or equal to 15 mm.

[0014] In some embodiments, the first sound inlet hole has a first axis direction pointing to the outside of the first shell, the second sound inlet hole has a second axis direction pointing to the outside of the second shell, and the included angle between the normal projection of the first axis direction on the symmetry plane and the normal projection of the second axis direction on the symmetry plane is greater than or equal to 115 degrees.

[0015] In some embodiments, the earphone further comprises a switching device, the two first microphones are connected to the same audio port of the processing circuit through the switching device, and the processing circuit controls one of the two first microphones that is relatively higher in the direction of gravity to be connected to the processing circuit according to the detection result of the detection element, so that it is in an active state, and disconnects the other of the two first microphones that is relatively lower in the direction of gravity from the processing circuit, so that it is in an inactive state.

[0016] The application has the beneficial effects that: by arranging two first microphones, in the wearing state, no matter whether the earphone is worn on the left ear or the right ear, one of the two first microphones that is relatively higher in the direction of gravity is in an active state, which is conducive to improving the difference between the first sound collected by the first microphone and the second sound collected by the second microphone, improving the noise reduction processing effect of the earphone, ensuring the sound receiving effect of the earphone while realizing the left-right ear exchange function of the earphone, and improving the user experience. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 is a schematic view of the wearing state of the earphone of the present application;

[0018] Fig. 2 is a schematic view of the structure of the earphone of Fig. 1 ;

[0019] Fig. 3 is a schematic view of the structure of the earphone of Fig. 1 ;

[0020] Fig. 4 is a schematic view of the structure of the earphone of Fig. 1 ;

[0021] Fig. 5 is a schematic view of the structure of the earphone of Fig. 1 ;

[0022] Fig. 6 is a schematic view of the cross-section structure of the earphone of Fig. 5 along the cutting line V-V;

[0023] Fig. 7 is a schematic view of the enlarged structure of the local area Z of the earphone of Fig. 4;

[0024] Fig. 8 is a schematic view of the structure of the earphone of Fig. 1 ;

[0025] Fig. 9 is a schematic view of the profile of the cross-section corresponding to the cutting line V-V of Fig. 6;

[0026] Fig. 10 is a schematic view of the structure of the earphone of Fig. 1 ;

[0027] Fig. 11 is a schematic view of the structure of the earphone of Fig. 1 ;

[0028] Fig. 12 is a schematic view of the structure of the earphone of Fig. 1 ;

[0029] Fig. 13 is a schematic view of the circuit structure of the earphone of Fig. 1 ;

[0030] Fig. 14 is a schematic view of the structure of the sound generating part of Fig. 2;

[0031] Fig. 15 is a schematic view of the cross-section structure of the sound generating part of Fig. 11 along the cutting line A-A;

[0032] Fig. 16 is a schematic view of the cross-section structure of the earphone of Fig. 5 along the cutting line V-V. DETAILED DESCRIPTION

[0033] The application will be described in further detail below with specific reference being made to the drawings. Like elements are referenced with like numerals throughout the several figures of the drawings. In the following description, numerous specific details are described to provide a thorough understanding of the application. However, it will be apparent to one skilled in the art that the application can be practiced without some or all of these specific details. In other instances, well known process operations have not been described in detail in order to avoid unnecessarily obscuring the application. As used in this description, and throughout the claims that follow, the meaning of "a," "an," and "the" includes plural reference unless the context clearly dictates otherwise. Also, as used in the description herein, the following terms have the following meanings.

[0034] In addition, features, operations, or steps described in the specification can be performed in any suitable order unless otherwise indicated by the context or otherwise clearly contradicted by the specification. Therefore, the foregoing description of various embodiments of the application is provided for the purpose of illustration only and not for the purpose of limitation.

[0035] In this document, references have been made to particular examples of components, such as "first," "second," etc. Such designations are merely for the purpose of distinguishing between like objects in the description, and are not meant to be limiting unless otherwise indicated by the context or otherwise clearly contradicted by the specification.

[0036] As shown in FIG. 1, the ear EAR of a user can include physiological parts such as an external auditory canal E11, a cymbiform cavity E12, a cymbiform crus E13, a triangular fossa E14, a concha E15, a scapha E16, a helix E17, and an antitragus E18. Although the external auditory canal E11 has a certain depth and extends to the tympanic membrane of the ear EAR, for the purpose of description, the external auditory canal E11 specifically refers to the entrance (i.e., the ear hole) thereof away from the tympanic membrane, as shown in FIG. 1, unless otherwise specified. Further, the cymbiform cavity E12, the cymbiform crus E13, the triangular fossa E14, and the like have a certain volume and depth; and the cymbiform cavity E12 is directly connected with the external auditory canal E11, i.e., the aforementioned ear hole can be simply regarded as being located at the bottom of the cymbiform cavity E12.

[0037] Further, the outer ear of the ear EAR has an antitragus E19, which has a certain depth and volume in the three-dimensional space compared to the concha cavity E12, the cymba concha E13 and the triangular fossa E14, i.e. these parts are respectively recessed along the direction close to the head of the user towards the back side of the ear EAR, and the antitragus E19 is convex along the direction away from the head of the user towards the front side of the ear EAR. Wherein, the "front side of the ear EAR" is a concept relative to the "back side of the ear EAR", the former refers to the side of the ear EAR away from the head, for example, Figure 1, and the latter refers to the side of the ear EAR towards the head, both of which are for the ear EAR of the user.

[0038] Further, different users can have individual differences, resulting in different sizes of the ear EAR, such as shape and size. In order to facilitate description and reduce (even eliminate) individual differences of different users, a simulator containing a head and its (left, right) ear EAR can be made based on ANSI: S3.36, S3.25 and IEC: 603187 standards, for example, GRAS45BCKEMAR. Therefore, descriptions such as "the user wears the earphone", "the earphone is in a wearing state" and "in a wearing state" can refer to the earphone described in the present application being worn on the ear EAR of the aforementioned simulator. Of course, it is just because of the individual differences of different users that the earphone worn by different users can have certain differences from the earphone worn on the ear EAR of the aforementioned simulator, but such differences should be tolerated.

[0039] It should be noted that in the field of medicine, anatomy, etc., three basic sections of the human body, i.e., a sagittal plane, a coronal plane and a horizontal plane, and three basic axes, i.e., a sagittal axis, a coronal axis and a vertical axis, can be defined. The sagittal plane is a section perpendicular to the ground surface made along the front-to-back direction of the body, which divides the human body into two parts, i.e., left and right parts; the coronal plane is a section perpendicular to the ground surface made along the left-to-right direction of the body, which divides the human body into two parts, i.e., front and back parts; and the horizontal plane is a section parallel to the ground surface made along the up-to-down direction of the body, which divides the human body into two parts, i.e., upper and lower parts. Correspondingly, the sagittal axis is an axis perpendicular to the coronal plane along the front-to-back direction of the body, the coronal axis is an axis perpendicular to the sagittal plane along the left-to-right direction of the body, and the vertical axis is an axis perpendicular to the horizontal plane along the up-to-down direction of the body. Further, the front side of the ear EAR is a concept relative to the back side of the ear EAR, the former refers to the side of the ear EAR away from the head, and the latter refers to the side of the ear EAR towards the head, both of which are for the ear EAR of the user. When the ear EAR of the simulator is observed along the direction of the coronal axis of the human body, the front side profile of the ear EAR shown in FIG. 1 can be obtained. Based on this, in combination with FIG. 1, the X, Y and Z directions can be simply regarded as the coronal axis of the human body, the sagittal axis of the human body and the vertical axis of the human body, respectively; and the XY, XZ and YZ planes can be simply regarded as the horizontal plane of the human body, the coronal plane of the human body and the sagittal plane of the human body, respectively.

[0040] The embodiments of the present application describe at least one exemplary structure of the earphone 1. As shown in FIG. 1, FIG. 1 shows the state that the earphone 1 is worn on the ear EAR of the user. The earphone 1 can be an ear clip type earphone. As shown in FIGS. 1 to 3, the earphone 1 includes a sound generating part 100 for inserting into the concha cavity E12 of the user, an abutting part 300 for abutting against the back of the user's ear, and an ear hook 200 connected to the sound generating part 100 and the abutting part 300. In the wearing state, the ear hook 200 can bypass the user's helix E17, the sound generating part 100 and the abutting part 300 form a clamping state on both sides of the user's helix E17, and the sound generating part 100 is located in the concha cavity E12. The sound generating part 100 is a sound playing device, which is used to convert electrical signals into sound signals and play them to the wearer. The abutting part 300 forms a clamping state with the sound generating part 100, so as to clamp and wear the entire earphone 1 on the ear EAR of the user. In some embodiments, the abutting part 300 can be provided with a battery, a circuit board and other devices. Of course, the abutting part 300 can also not be provided with a battery, and the battery can be installed in the sound generating part 100.

[0041] In some embodiments, as shown in FIG. 4, the ear hook 200 has a symmetry plane A1 arranged along the length direction F1 of the ear hook 200. Specifically, the symmetry plane A1 of the ear hook 200 is arranged along the length direction F1 of the ear hook 200, and the parts of the ear hook 200 on both sides of the symmetry plane A1 are least different or consistent, that is, if the ear hook 200 is regularly symmetrical, the parts of the ear hook 200 on both sides of the symmetry plane A1 are consistent, and if the ear hook 200 is not strictly symmetrical, the difference between the parts of the ear hook 200 on both sides of the symmetry plane A1 should be the smallest in various division manners, for example, the projection of the ear hook 200 on a plane perpendicular to the symmetry plane A1 can be observed to distinguish the difference.

[0042] Optionally, as shown in FIGS. 4, 5 and 6, the abutting part 300 includes a first shell 31 and a first microphone 32 arranged in the first shell 31, and the first microphone 32 collects the first sound through a first sound inlet hole 3101 on the first shell 31. The sound generating part 100 includes a second shell 11 and a second microphone 12 arranged in the second shell 11, and the second microphone 12 collects the second sound through a second sound inlet hole 1101 on the second shell 11. The earphone 1 further includes a processing circuit 400 for performing noise reduction processing based on the first sound and the second sound. Wherein, the earphone 1 further has a first reference plane A2 located below the symmetry plane A1 and parallel to the symmetry plane A1 in the wearing state, and the distance between the first reference plane A2 and the symmetry plane A1 is less than or equal to 5 mm, for example, it can be 1 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm, etc., and of course it can also be other values. The first sound inlet hole 3101 has a sound inlet end 301 located on the outer wall surface of the first shell 31, and the external sound is introduced into the first sound inlet hole 3101 from the sound inlet end 301 and transmitted to the first microphone 32 through the first sound inlet hole 3101, and the whole of the sound inlet end 301 of the first sound inlet hole 3101 is located on one side of the first reference plane A2 towards the symmetry plane A1.

[0043] The processing circuit 400 can perform noise reduction processing based on the first sound and the second sound, for example, by arranging the first sound inlet hole 3101 and the second sound inlet hole 1101 at different positions, so that the sounds introduced by them have certain differences, and then the sounds collected by the first microphone 32 and the second microphone 12 have different signal amplitudes in the main sound collection frequency band, for example, the human voice sound collection frequency band, so that the processing circuit 400 can identify and eliminate the noise by using the first sound and the second sound.

[0044] By setting the whole of the sound inlet end 301 of the first sound inlet hole 3101 to be located on the side of the first reference plane A2 facing the symmetry plane A1, the position of the sound inlet end 301 of the first sound inlet hole 3101 is limited, on the one hand, so that the sound inlet end 301 of the first sound inlet hole 3101 can be better blocked by the user's helix E17 in the wearing state, and the second sound inlet hole 1101 provided in the sound generating part 100 is closer to the user's mouth and is not blocked, thereby improving the difference between the sounds introduced by the first sound inlet hole 3101 and the second sound inlet hole 1101, i.e., improving the difference between the first sound collected by the first microphone 32 and the second sound collected by the second microphone 12, which is beneficial to improve the noise reduction effect of the processing circuit 400 using the first sound and the second sound for noise reduction processing, and on the other hand, the line connecting the first sound inlet hole 3101 and the second sound inlet hole 1101 has better directivity to the mouth, which is beneficial to improve the sound receiving effect of the earphone 1 and improve the user's experience.

[0045] Optionally, as shown in FIG. 4, the sound inlet end 301 of the first sound inlet hole 3101 is at least partially located on the side of the symmetry plane A1 facing the first reference plane A2, and the maximum straight line distance L1 from the hole of the sound inlet end 301 of the first sound inlet hole 3101 located on the side of the symmetry plane A1 facing the first reference plane A2 to the symmetry plane A1 is less than or equal to 4 mm, for example, it can be 0.5 mm, 1 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, etc., and of course it can also be other values.

[0046] Referring to FIG. 1, since the user's helix E17 is overall outwardly convex and the outward convex degree of the upper part along the human body vertical axis is greater than that of the lower part, in the wearing state, the higher the sound inlet end 301 of the first sound inlet hole 3101 is, the greater the blocking degree of the user's outward convex helix E17 to the first sound inlet hole 3101, and the greater the difference between the first sound collected by the first microphone 32 and the second sound collected by the second microphone 12, which is beneficial to improve the noise reduction effect.

[0047] By setting the maximum straight line distance L1 from the hole of the sound inlet end 301 of the first sound inlet hole 3101 located on the side of the symmetry plane A1 facing the first reference plane A2 to the symmetry plane A1 to be less than or equal to 4 mm, in the wearing state, the user's outward convex helix E17 can better block the first sound inlet hole 3101, and the line connecting the first sound inlet hole 3101 and the second sound inlet hole 1101 has better directivity to the mouth, thereby being beneficial to improve the difference between the first sound collected by the first microphone 32 and the second sound collected by the second microphone 12.

[0048] Optionally, as shown in FIG. 7, the earphone 1 is arranged to support a left-ear wearing state and a right-ear wearing state, that is, the earphone 1 can be worn by the left ear of a user or the right ear of the user. The number of the first reference planes A2 is two and the two first reference planes A2 are symmetrically arranged on both sides of the symmetry plane A1. One of the two first reference planes A2 is below the symmetry plane A1 when the earphone 1 is in the left-ear wearing state, and the other of the two first reference planes A2 is below the symmetry plane A1 when the earphone 1 is in the right-ear wearing state. The sound inlet end 301 of the first sound inlet hole 3101 is located between the two first reference planes A2.

[0049] The earphone 1 is arranged to support both the left-ear wearing state and the right-ear wearing state, that is, when the user switches the earphone 1 from the left-ear wearing state to the right-ear wearing state or from the right-ear wearing state to the left-ear wearing state, the state of the earphone 1 relative to the ear EAR does not change, that is, the positions of the sound outlet hole 1102 and the pressure relief hole 1103 on the earphone 1 relative to the external auditory canal E11 do not change, and the user has no difference in the feeling of wearing the earphone 1 on the left ear or the right ear. Furthermore, the earphone 1 will automatically identify the ear EAR on which the earphone 1 is worn and change the function of the earphone 1 worn on different ears EAR, such as the selection of left and right channels or the switching of touch functions, by using the control logic matched therewith. By arranging the sound inlet end 301 of the first sound inlet hole 3101 as a whole between the two first reference planes A2, the sound inlet end 301 of the first sound inlet hole 3101 can be largely blocked by the helix E17 of the user no matter whether the earphone 1 is worn on the left ear or the right ear, and the line connecting the first sound inlet hole 3101 and the second sound inlet hole 1101 has good directivity to the mouth, so that the earphone 1 can achieve good noise reduction effect no matter whether the earphone 1 is in the left-ear wearing state or the right-ear wearing state, which is conducive to improving the sound collection effect of the earphone 1 and improving the consistency of the earphone 1 in the left-ear wearing state and the right-ear wearing state and improving the user experience.

[0050] Optionally, as shown in FIG. 7, the number of the first sound inlet holes 3101 is two, the sound inlet ends 301 of the two first sound inlet holes 3101 are arranged on both sides of the symmetry plane A1, and the sound inlet ends 301 of the two first sound inlet holes 3101 are located between the two first reference planes A2. When the earphone 1 is worn on the left ear or the right ear, the relative positions of the first sound inlet holes 3101 and the ear EAR are close or even substantially the same, so that the earphone 1 can achieve relatively close noise reduction effect when the left ear and the right ear are exchanged, which is conducive to improving the sound collection effect of the earphone 1 and improving the user experience.

[0051] Optionally, as shown in FIG. 7, the sound inlet ends 301 of the two first sound inlet holes 3101 are symmetrically arranged relative to the symmetry plane A1, so that the earphone 1 can achieve the same noise reduction effect when the left ear and the right ear are exchanged. In addition, the symmetric arrangement is conducive to improving the appearance.

[0052] Optionally, as shown in FIG. 3 or FIG. 4, the number of the first microphone 32 is one, and the first microphone 32 collects the first sound through two first sound inlet holes 3101, sound inlet ends 301 of the two first sound inlet holes 3101 are spaced from each other, and the two first sound inlet holes 3101 are in communication with each other. The two first sound inlet holes 3101 in communication with each other are beneficial to maintain air pressure balance, specifically, air flow can flow in from one of the first sound inlet holes 3101 and flow out through the other first sound inlet hole 3101, thereby being beneficial to reduce wind noise in the first sound collected by the first microphone 32, the structure is simple, and installation space can be saved.

[0053] In some embodiments, the number of the first sound inlet hole 3101 can also be one, and the symmetry plane A1 passes through the first sound inlet hole 3101, so that the earphone 1 can achieve the same noise reduction effect when worn on the left ear or the right ear. In this case, the sound inlet end 301 of the first sound inlet hole 3101 can be largely blocked by the user's helix E17 whether the earphone 1 is worn on the left ear or the right ear, and the line connecting the first sound inlet hole 3101 and the second sound inlet hole 1101 has good directivity to the mouth, which is beneficial to improve the noise reduction effect, improve the sound receiving effect of the earphone 1, and improve the user's experience.

[0054] In addition, in some embodiments, the number of the first microphone 32 can also be two, and each first microphone 32 corresponds to one first sound inlet hole 3101, which is not limited in the present application, and persons skilled in the art can select according to actual needs.

[0055] Optionally, as shown in FIG. 8, the earphone 1 can be arranged to support only a left ear wearing state or only a right ear wearing state, and the sound inlet end 301 of the first sound inlet hole 3101 is located on the side away from the first reference plane A2 of the symmetry plane A1, so as to improve the blocking effect of the user's helix E17 on the sound inlet end 301 of the first sound inlet hole 3101 in the wearing state of the earphone 1, and make the line connecting the first sound inlet hole 3101 and the second sound inlet hole 1101 more direct to the mouth, thereby being beneficial to improve the difference degree of the sounds introduced by the first sound inlet hole 3101 and the second sound inlet hole 1101, and further improve the noise reduction processing effect of the earphone 1.

[0056] Optionally, as shown in FIG. 8, the minimum straight-line distance L2 from the hole flange of the sound inlet end 301 of the first sound inlet hole 3101 to the symmetry plane A1 is greater than or equal to 5 mm, for example, it can be 5.5 mm, 6 mm, 6.5 mm, 7 mm, etc., and of course it can also be other values. Among them, when there are two first sound inlet holes 3101 that communicate with each other, the minimum straight-line distance L2 refers to the minimum straight-line distance from the hole flange of the first sound inlet hole 3101 closer to the symmetry plane A1, or the smaller one of the minimum straight-line distances from the hole flanges of the two first sound inlet holes 3101 to the symmetry plane A1, respectively.

[0057] By setting the minimum straight-line distance L2 from the hole flange of the sound inlet end 301 of the first sound inlet hole 3101 to the symmetry plane A1 to be greater than or equal to 5 mm, the sound inlet end 301 of the first sound inlet hole 3101 is far away from the symmetry plane A1 to a greater extent, which is beneficial to improve the shielding effect of the user's antihelix E17 on the sound inlet end 301 of the first sound inlet hole 3101 in the wearing state of the earphone 1, so that the line connecting the first sound inlet hole 3101 and the second sound inlet hole 1101 points more to the mouth, which is beneficial to improve the noise reduction processing effect of the earphone 1.

[0058] Optionally, as shown in FIG. 8, the first shell 31 includes a main body 311, and the main body 311 includes a circumferential side wall 3111 for contacting the back side of the antihelix E17 and two oppositely arranged end walls 3112. The first sound inlet hole 3101 can also be arranged on the circumferential side wall 3111 and located on the side of the circumferential side wall 3111 away from the sound generating part 100. In some embodiments, the first sound inlet hole 3101 can be arranged on the end wall 3112, which is not limited in the present application, and can be selected according to actual needs by those skilled in the art. Optionally, as shown in FIG. 6, the second sound inlet hole 1101 has a sound inlet end 101 located on the outer wall surface of the second shell 11, and the minimum straight-line distance L3 between the hole flange of the sound inlet end 101 of the second sound inlet hole 1101 and the hole flange of the sound inlet end 301 of the first sound inlet hole 3101 is greater than or equal to 15 mm, for example, it can be 15 mm, 18 mm, 20 mm, 30 mm, etc., and of course it can also be other values.

[0059] By setting the minimum straight-line distance L3 between the hole flange of the sound inlet end 101 of the second sound inlet hole 1101 and the hole flange of the sound inlet end 301 of the first sound inlet hole 3101 to be greater than or equal to 15 mm, the difference between the first sound collected by the first microphone 32 and the second sound collected by the second microphone 12 is improved, which is beneficial to improve the noise reduction effect of the processing circuit 400 using the first sound and the second sound for noise reduction processing, and is beneficial to improve the sound collection effect of the earphone 1 and improve the user's experience.

[0060] Optionally, as shown in FIG. 4 and FIG. 5, along the width direction F2 of the ear hook 200, the sound inlet end 301 of the first sound inlet hole 3101 and the sound inlet end 101 of the second sound inlet hole 1101 are arranged at least partially overlapping with the ear hook 200 respectively.

[0061] Specifically, the symmetry plane A1 is perpendicular to the width direction F2 of the ear hook 200, taking a straight line perpendicular to the symmetry plane A1 and parallel to the width direction F2 of the ear hook 200 as a reference line A3, when the ear hook 200 is projected to the reference line A3 along the symmetry plane A1, it has a first projection width S1, when the sound inlet end 301 of the first sound inlet hole 3101 is projected to the reference line A3 along the symmetry plane A1, it has a second projection width S2, when the sound inlet end 101 of the second sound inlet hole 1101 is projected to the reference line A3 along the symmetry plane A1, it has a third projection width S3, the second projection width S2 and the third projection width S3 at least partially overlap with the first projection width S1 respectively, so that the ear hook 200 can form a barrier between the sound inlet end 301 of the first sound inlet hole 3101 and the sound inlet end 101 of the second sound inlet hole 1101, thereby improving the difference between the first sound collected by the first microphone 32 and the second sound collected by the second microphone 12, which is conducive to improving the noise reduction processing effect of the earphone 1.

[0062] Optionally, as shown in FIG. 9, the first sound inlet hole 3101 has a first axis direction F3 pointing to the outside of the first shell 31, the second sound inlet hole 1101 has a second axis direction F4 pointing to the outside of the second shell 11, the included angle J1 between the orthogonal projection of the first axis direction F3 on the symmetry plane A1 and the orthogonal projection of the second axis direction F4 on the symmetry plane A1 is greater than or equal to 115 degrees, for example, it can be 115 degrees, 120 degrees, 125 degrees, 130 degrees, etc., of course, it can also be other values.

[0063] Wherein, the first axis direction F3 of the first sound inlet hole 3101 can be determined by the following method: when a reference cylinder matching the size of the first sound inlet hole 3101 is inserted into the first sound inlet hole 3101, the axis direction of the reference cylinder is the first axis direction F3 of the first sound inlet hole 3101. It should be noted that "size matching" described here means that the reference cylinder can be inserted into the first sound inlet hole 3101 and is not easy to fall out of it.

[0064] The determination method of the second axis direction F4 of the second sound inlet hole 1101 can refer to the determination of the first axis direction F3 of the first sound inlet hole 3101, which will not be described here.

[0065] By setting the included angle J1 between the normal projection of the first axis direction F3 on the symmetry plane A1 and the normal projection of the second axis direction F4 on the symmetry plane A1 to be greater than or equal to 115 degrees, the orientations of the first sound inlet hole 3101 and the second sound inlet hole 1101 are different, so the sounds introduced by the two are also different, further improving the difference between the first sound collected by the first microphone 32 and the second sound collected by the second microphone 12, which is beneficial to improve the noise reduction processing effect of the earphone 1.

[0066] Optionally, as shown in FIGS. 4 and 8, the first shell 31 includes a main body part 311 and a transition part 312, the transition part 312 is arranged on the outer circumferential surface of the main body part 311 and connected with the ear hook 200, and the transition part 312 is arranged in a tapered shape away from the main body part 311, so that the ear hook 200 is smoothly connected with the outer surface of the main body part 311. Among them, the first microphone 32 is arranged in the transition part 312, and the first sound inlet hole 3101 is arranged on the transition part 312, so as to make full use of the space of the transition part 312, which is beneficial to improve the space utilization rate of the earphone 1 and make the structure of the earphone 1 more compact.

[0067] Optionally, the processing circuit 400 is further configured to perform wind noise detection based on the first sound and / or the second sound, and when it is detected that the wind noise is greater than or equal to a preset threshold, control the first microphone 32 to be in an operating state and control the second microphone 12 to be in a non-operating state. Among them, the operating state means that the microphone is turned on, and the sound collected by the microphone can be used by the processing circuit 400, and the non-operating state means that the microphone is turned off, or the microphone is turned on, but the sound collected by the microphone is not used by the processing circuit 400.

[0068] Among them, the processing circuit 400 performs wind noise detection based on the first sound and / or the second sound, which means that the processing circuit 400 identifies the sound signal characteristics in the first sound and / or the second sound to determine whether there are characteristics of wind noise signals in the first sound and / or the second sound, so as to detect whether there is wind noise and how strong the wind noise is.

[0069] Since the sound inlet end 301 of the first sound inlet hole 3101 is largely blocked by the user's helix E17 in the wearing state, and the sound inlet end 101 of the second sound inlet hole 1101 is not blocked, the wind noise of the sound introduced by the second sound inlet hole 1101 will be greater than that of the first sound inlet hole 3101. Therefore, when the processing circuit 400 detects that the wind noise is greater than or equal to a preset threshold, the first microphone 32 is controlled to be in an operating state and the second microphone 12 is controlled to be in a non-operating state, so as to avoid that the second microphone 12 collects sound with too large wind noise to affect the sound receiving effect of the earphone 1, which is beneficial to improve the user's experience.

[0070] In some implementations, as shown in FIG. 5, the abutting part 300 includes two first microphones 32 for respectively collecting first sounds, the sound producing part 100 includes a second microphone 12 for collecting a second sound. The earphone 1 further includes a detection element 500 for detecting a relative positional relationship of the two first microphones 32 in the wearing state, which can refer to a relative up-down relationship between the two first microphones 32 in the gravity direction F5 in the wearing state. The processing circuit 400 controls one of the two first microphones 32 that is relatively higher in the gravity direction F5 to be in an active state and controls the other one that is relatively lower in the gravity direction F5 to be in an inactive state according to the detection result of the detection element 500, and further performs noise reduction processing based on the first sound collected by the first microphone 32 in the active state and the second sound collected by the second microphone 12.

[0071] wherein the active state refers to that the microphone is turned on and the sound collected thereby can be used by the processing circuit 400, and the inactive state refers to that the microphone is turned off or the sound collected thereby is not used by the processing circuit 400.

[0072] On the one hand, when the earphone 1 is in the wearing state, the higher the position of the first microphone 32, the more likely it is to be blocked by the helix E17, so that the difference in sound collection between the first microphone 32 and the second microphone 12 is larger. On the other hand, when the earphone 1 is in the wearing state, the higher the position of the first microphone 32, the better the line between the first microphone 32 and the second microphone 12 can point to the mouth, which also makes the difference in sound collection between the first microphone 32 and the second microphone 12 larger. Therefore, by arranging two first microphones 32, when the earphone 1 is in the wearing state, no matter whether it is worn on the left ear or the right ear, one of the two first microphones 32 that is relatively higher in the gravity direction F5 is in the active state, which is conducive to improving the difference between the first sound collected by the first microphone 32 and the second sound collected by the second microphone 12, improving the noise reduction processing effect of the earphone 1, ensuring the sound collection effect of the earphone 1 while realizing the left-right ear exchange function of the earphone 1, and improving the user experience.

[0073] Optionally, as shown in FIG. 10, the ear hook 200 has a symmetry plane A1 arranged along the length direction F1 of the ear hook 200, and the abutting part 300 further includes a first shell 31 provided with two first sound inlet holes 3101, each first microphone 32 collects first sound through a corresponding first sound inlet hole 3101, and the two first sound inlet holes 3101 respectively have sound inlet ends 301 located on the outer wall surface of the first shell 31, and the sound inlet ends 301 of the two first sound inlet holes 3101 are arranged on both sides of the symmetry plane A1.

[0074] By setting the corresponding first sound inlet hole 3101 for each of the two first microphones 32, and setting the sound inlet end 301 of the two first sound inlet holes 3101 on both sides of the symmetry plane A1, so that when the first microphone 32 relatively higher along the gravity direction F5, that is, the first microphone 32 located above the symmetry plane A1 is in the working state, the sound inlet end 301 of the corresponding first sound inlet hole 3101 is also located above the symmetry plane A1. In this way, no matter whether the earphone 1 is worn on the left ear or the right ear, the user's helix E17 can block the first microphone 32 in the working state to a greater extent, and the connection between the first microphone 32 in the working state and the second microphone 12 is more directed to the mouth, thereby improving the difference between the first sound collected by the first microphone 32 and the second sound collected by the second microphone 12, improving the noise reduction processing effect of the earphone 1, ensuring the sound receiving effect of the earphone 1 while realizing the left and right ear exchange function of the earphone 1, and helping to improve the user's experience.

[0075] Optionally, as shown in FIG. 10, the sound inlet ends 301 of the two first sound inlet holes 3101 are symmetrically arranged relative to the symmetry plane A1, so that during the left and right ear exchange of the earphone 1, the two first sound inlet holes 3101 can achieve the same sound introduction effect, thereby enabling the earphone 1 to achieve good noise reduction processing effect whether it is worn on the left ear or the right ear, and helping to improve the appearance of the earphone 1.

[0076] Optionally, as shown in FIG. 10, the first shell 31 includes a main body 311, and the main body 311 includes a circumferential side wall 3111 and two oppositely arranged end walls 3112, the circumferential side wall 3111 is used to contact the back side of the helix E17, and the two first sound inlet holes 3101 are arranged on the two end walls 3112 of the abutting portion 300, respectively, thereby further improving the shielding effect of the user's helix E17 on the corresponding first sound inlet hole 3101 of the first microphone 32 in the working state in the wearing state, so that the connection between the first microphone 32 in the working state and the second microphone 12 can be better directed to the mouth, thereby effectively improving the difference between the first sound and the second sound, and helping the processing circuit 400 to achieve good noise reduction processing effect.

[0077] Optionally, as shown in FIG. 10, in the vertical direction F6 of the symmetry plane A1, the shortest straight line distance L4 of the sound inlet end 301 of the two first sound inlet holes 3101 is greater than or equal to 10 mm, for example, it can be 11 mm, 12 mm, 13 mm, 15 mm, 18 mm, 20 mm, etc., and of course it can also be other values.

[0078] By setting the shortest straight line distance L4 between the sound inlet ends 301 of the two first sound inlet holes 3101 to be greater than or equal to 10 mm, so that the two first sound inlet holes 3101 are a certain distance apart, in the wearing state of the earphone 1, the first sound inlet hole 3101 corresponding to the first microphone 32 in the working state can be better blocked by the user's helix E17, and the line between the first microphone 32 in the working state and the second microphone 12 can better point to the mouth, thereby facilitating the improvement of the difference between the sounds collected by the first microphone 32 and the second microphone 12, and improving the noise reduction processing effect of the earphone 1.

[0079] Optionally, as shown in FIG. 10, the shortest straight line distance L5 from the hole along of the sound inlet end 301 of the two first sound inlet holes 3101 to the symmetry plane A1 is greater than or equal to 5 mm, for example, it can be 5.5 mm, 6 mm, 8 mm, 10 mm, 15 mm, etc., and of course it can also be other values.

[0080] So that the sound inlet end 301 of the two first sound inlet holes 3101 is a certain distance apart from the symmetry plane A1, in this way, in the wearing state of the earphone 1, the first sound inlet hole 3101 corresponding to the first microphone 32 in the working state can be better blocked by the user's helix E17, thereby facilitating the improvement of the difference between the sounds collected by the first microphone 32 and the second microphone 12, and the line between the first microphone 32 in the working state and the second microphone 12 can better point to the mouth, improving the noise reduction processing effect of the earphone 1.

[0081] Optionally, as shown in FIG. 11, the two first sound inlet holes 3101 are both arranged on the circumferential side wall 3111 of the abutting portion 300, and are located on the side of the circumferential side wall 3111 away from the sound generating portion 100.

[0082] Since at least one of the two end walls 3112 of the abutting portion 300 is provided with an antenna for the earphone 1 to perform wireless radio frequency connection and / or a touch area for the user to perform touch operation, if the first sound inlet hole 3101 is arranged on the end wall 3112, it may cause interference between the antenna and / or the touch area and the first sound inlet hole. Therefore, by arranging the first sound inlet hole 3101 on the circumferential side wall 3111, the possibility of interference between the first sound inlet hole 3101 and the antenna and / or the touch area can be effectively reduced, which is beneficial to improving the stability and reliability of the earphone 1.

[0083] Optionally, the processing circuit 400 is configured to perform wind noise detection based on the first sound and / or the second sound, and when detecting that the wind noise is greater than or equal to a preset threshold, the processing circuit 400 further controls the one of the two first microphones 32 that collects the first sound with relatively smaller wind noise to be in an active state, and controls the other one of the two first microphones 32 to be in an inactive state, so that the earphone 1 can obtain the first sound with relatively smaller wind noise, thereby facilitating the earphone 1 to achieve good sound collection effect, and facilitating the user to have a better use experience.

[0084] Optionally, the processing circuit 400 is further configured to perform wind noise detection based on the first sound and / or the second sound, and when detecting that the wind noise is greater than or equal to a preset threshold, the processing circuit 400 further controls the other one of the two first microphones 32 that is relatively lower along the gravity direction F5 to be in an active state, and controls the second microphone 12 to be in an inactive state.

[0085] Since the sound inlet end 301 of the first sound inlet hole 3101 is largely blocked by the user's antihelix E17 in the wearing state, and the sound emitting part 100 is located in the concha cavity E12 and is not blocked, the wind noise of the sound collected by the second microphone 12 will be greater than that of the sound collected by the first microphone 32, and when detecting that the wind noise is greater than or equal to a preset threshold, the processing circuit 400 can control the second microphone 12 to be in an inactive state and one of the two first microphones 32 to be in an active state. Since the sound inlet end 301 of the first sound inlet hole 3101 corresponding to the one of the two first microphones 32 that is relatively lower along the gravity direction F5 is closer to the user's mouth, in some embodiments, only the relatively lower first microphone 32 is made to be in an active state, and the first sound collected by the first microphone 32 can be as clear and complete as possible while taking into account the relatively low wind noise, thereby facilitating the earphone 1 to achieve good sound collection effect, and facilitating the user to have a better use experience.

[0086] Optionally, as shown in FIG. 12, the sound emitting part 100 includes a second shell 11, and the second shell 11 is provided with a second sound inlet hole 1101, the second microphone 12 collects the second sound via the second sound inlet hole 1101, the second sound inlet hole 1101 has a sound inlet end 101 located on the outer wall surface of the second shell 11, and the minimum straight line distance L3 between the hole along of the sound inlet end 301 of the first sound inlet hole 3101 and the hole along of the sound inlet end 101 of the second sound inlet hole 1101 is greater than or equal to 15 mm, for example, can be 15 mm, 17 mm, 20 mm, 25 mm, etc., and of course can also be other values.

[0087] By setting the hole along of the sound inlet end 301 of the first sound inlet hole 3101 to be greater than or equal to 15mm from the minimum straight line distance L3 between the hole along of the sound inlet end 101 of the second sound inlet hole 1101, a certain difference between the sounds introduced by the first sound inlet hole 3101 and the second sound inlet hole 1101 is ensured, which is conducive to good noise reduction processing by the processing circuit 400 and improves the noise reduction processing effect of the earphone 1.

[0088] Optionally, as shown in FIG. 12, the first sound inlet hole 3101 has a first axis direction F3 pointing to the outside of the first shell 31, and the second sound inlet hole 1101 has a second axis direction F4 pointing to the outside of the second shell 11. The included angle between the normal projection of the first axis direction F3 on the symmetry plane A1 and the normal projection of the second axis direction F4 on the symmetry plane A1 is greater than or equal to 115 degrees, for example, it can be 115 degrees, 120 degrees, 125 degrees, 130 degrees, etc., and of course it can also be other values.

[0089] In this embodiment, the determination method of the first axis direction F3 of the first sound inlet hole 3101 and the determination method of the second axis direction F4 of the second sound inlet hole 1101 can be the same as or similar to the foregoing embodiments, which will not be described here.

[0090] By setting the included angle between the normal projection of the first axis direction F3 on the symmetry plane A1 and the normal projection of the second axis direction F4 on the symmetry plane A1 to be greater than or equal to 115 degrees, the first sound inlet hole 3101 and the second sound inlet hole 1101 are respectively directed to different directions, thereby ensuring a certain difference between the sounds introduced by the first sound inlet hole 3101 and the second sound inlet hole 1101, effectively improving the difference between the first sound and the second sound, and being conducive to improving the noise reduction processing effect of the earphone 1.

[0091] Optionally, as shown in FIGS. 5 and 13, the earphone 1 further comprises a switching device 600, and the two first microphones 32 are connected to the same audio port of the processing circuit 400 via the switching device 600. The processing circuit 400 controls one of the two first microphones 32 that is relatively higher along the gravity direction F5 to be connected to the processing circuit 400 according to the detection result of the detection element 500, so that it is in an operating state, and disconnects the other one that is relatively lower along the gravity direction F5 from the processing circuit 400, so that it is in a non-operating state.

[0092] By setting the switching device 600, the processing circuit 400 can conveniently perform switching control on the two first microphones 32 according to the detection result of the detection element 500, which is conducive to improving the switching efficiency and reliability of the earphone 1.

[0093] In some embodiments, the switching of the two first microphones 32 can also be implemented by software only, which is within the understanding of those skilled in the art and will not be described here.

[0094] In some embodiments, as shown in FIG. 6 and FIG. 9, the sound emitting part 100 includes a shell and a microphone and a sound emitting assembly 13 arranged in the shell, the shell can be the aforementioned second shell 11, and the microphone can be the aforementioned second microphone 12. The second shell 11 is provided with a sound inlet hole and a sound outlet hole 1102, the sound inlet hole can be the aforementioned second sound inlet hole 1101, the second microphone 12 collects external sound through the second sound inlet hole 1101, and the sound emitted by the sound emitting assembly 13 is transmitted outward through the sound outlet hole 1102. The second sound inlet hole 1101 can be used to guide sound to the second microphone 12, and the second microphone 12 can be used to collect the guided sound. The second sound inlet hole 1101 has a sound inlet end 101 located on the outer wall surface of the second shell 11, and the sound outlet hole 1102 has a first sound outlet end 102 located on the outer wall surface of the second shell 11. As shown in FIG. 9, the sound inlet end 101 of the second sound inlet hole 1101 has a hole along which the first sound outlet end 102 has a first shortest straight line segment L6, and the length of the first shortest straight line segment L6 is greater than or equal to 9 mm, for example, it can be 9 mm, 10 mm, 12 mm, 15 mm, etc., and of course it can also be other values.

[0095] Since the propagation of sound follows the inverse square law, that is, the intensity of sound is inversely proportional to the square of the distance of its sound source, the farther the distance from the sound source, the smaller the intensity of the sound. By setting the length of the first shortest straight line segment L6 to be greater than or equal to 9 mm, the sound transmitted outward by the sound outlet hole 1102 is effectively prevented from being guided into the second sound inlet hole 1101, thereby avoiding interference with the collection of sound by the second microphone 12, effectively reducing the possibility of echo when the user uses the earphone 1 to make a call, and improving the user's call experience.

[0096] Optionally, as shown in FIG. 9, along the outer wall surface of the second shell 11, the sound inlet end 101 of the second sound inlet hole 1101 has a hole along which the first sound outlet end 102 has a shortest wall surface connecting line with the first shortest straight line segment L6 as an end point, which is referred to as the first shortest wall surface connecting line L7. The first shortest wall surface connecting line L7 is specifically the shortest arc segment formed between the sound inlet end 101 of the second sound inlet hole 1101 and the hole along which the first sound outlet end 102 is located along the contour line of the outer wall surface of the second shell 11. The first shortest wall surface connecting line L7 is arranged to protrude towards the outside of the second shell 11, and the length of the first shortest wall surface connecting line L7 is greater than or equal to 13 mm, for example, it can be 13 mm, 15 mm, 18 mm, 20 mm, etc., and of course it can also be other values.

[0097] By setting the length of the first shortest wall surface connecting line L7 to be greater than or equal to 13 mm, the isolation effect of the second shell 11 on sound between the second sound inlet hole 1101 and the sound outlet hole 1102 is improved, and the possibility of interference of the sound transmitted outward by the sound outlet hole 1102 with the sound collected by the second microphone 12 is further reduced.

[0098] Optionally, the ratio between the length of the first shortest wall surface connecting line L7 and the length of the first shortest straight line segment L6 is between 0.5 and 0.75, for example, it can be 0.55, 0.65, 0.7, etc., and of course it can also be other numerical values.

[0099] By setting the ratio between the length of the first shortest wall surface connecting line L7 and the length of the first shortest straight line segment L6 to be between 0.5 and 0.75, the isolation effect of the second shell 11 on sound between the second sound inlet hole 1101 and the sound outlet hole 1102 is further improved, and the sound collection effect of the earphone 1 is improved.

[0100] Optionally, as shown in FIGS. 5 and 6, the ear hook 200 has a symmetry plane A1 arranged along the length direction F1 of the ear hook 200, the symmetry plane A1 passes through the sound inlet end 101 of the second sound inlet hole 1101 and the first sound outlet end 102 respectively, and in the wearing state, the sound inlet end 101 of the second sound inlet hole 1101 is located on the side of the second shell 11 away from the helix E17, and is closer to the ear hook 200 than the first sound outlet end 102.

[0101] By arranging the sound inlet end 101 of the second sound inlet hole 1101 and the first sound outlet end 102 to intersect the symmetry plane A1, on the one hand, the earphone 1 is more symmetrical in appearance, and on the other hand, the earphone 1 can be simultaneously adapted for left ear and right ear wearing, which is conducive to realizing the left and right ear interchange function and effectively improving the adaptability of the earphone 1.

[0102] In addition, the sound inlet end 101 of the second sound inlet hole 1101 is arranged to be located on the side of the second shell 11 away from the helix E17 in the wearing state, so that the second sound inlet hole 1101 can better guide the voice emitted by the user's mouth, thereby effectively improving the applicability of the earphone 1. In the wearing state, the sound inlet end 101 of the second sound inlet hole 1101 is closer to the ear hook 200 than the first sound outlet end 102, avoiding the sound emitting assembly 13, so that the sound emitting assembly 13 can occupy a relatively large space, improving the space utilization rate in the second shell 11. In the wearing state, the first sound outlet end 102 of the sound outlet hole 1102 can be closer to the ear canal than the sound inlet end 101 of the second sound inlet hole 1101, so that the sound emitted outward by the sound emitting assembly 13 through the first sound outlet end 102 is more easily transmitted into the user's ear canal.

[0103] Optionally, as shown in FIG. 9, the second sound inlet hole 1101 has an axial direction pointing out of the second housing 11, which is referred to as the second axial direction F4. The sound outlet hole 1102 has a second sound outlet end 103 located on the inner wall surface of the second housing 11, that is, the sound emitted by the sound emitting assembly 13 is transmitted to the outside of the earphone 1 in turn through the second sound outlet end 103 and the first sound outlet end 102. The hole along of the sound inlet end 101 of the second sound inlet hole 1101 and the hole along of the second sound outlet end 103 have a second shortest straight line segment L8. The first shortest straight line segment L6 has an end point on the hole along of the first sound outlet end 102 as a first reference point K1. The second shortest straight line segment L8 has an end point on the hole along of the second sound outlet end 103 as a second reference point K2. The sound outlet hole 1102 has a reference direction F7 pointing from the second reference point K2 to the first reference point K1. The included angle J2 between the normal projection of the second axial direction F4 on the symmetry plane A1 and the normal projection of the reference direction F7 on the symmetry plane A1 is greater than or equal to 70 degrees, for example, it can be 70 degrees, 75 degrees, 80 degrees, 90 degrees, etc., and of course it can also be other values.

[0104] By setting the included angle J2 between the normal projection of the second axial direction F4 on the symmetry plane A1 and the normal projection of the reference direction F7 on the symmetry plane A1 to be greater than or equal to 70 degrees, the second sound inlet hole 1101 and the sound outlet hole 1102 have different orientations, thereby effectively reducing the possibility that the sound transmitted from the sound outlet hole 1102 is introduced by the second sound inlet hole 1101, effectively reducing the possibility that the sound emitted by the sound emitting assembly 13 interferes with the sound collected by the second microphone 12, effectively reducing the possibility of echo when the user uses the earphone 1 to talk, and is beneficial to improve the user's call experience.

[0105] Optionally, as shown in FIG. 3, the first sound outlet end 102 is in a strip shape, and on the symmetry plane A1, the hole along of the first sound outlet end 102 has a first end point K6 and a second end point K7 spaced apart along the length direction of the first sound outlet end 102. The first end point K6 is closer to the sound inlet end 101 of the second sound inlet hole 1101 than the second end point K7.

[0106] By setting the first sound outlet end 102 into a strip shape, while ensuring the area of the sound outlet hole 1102, when the earphone 1 is worn by a user, due to the fact that the second shell 11 and the concha cavity E12 of the user's ear EAR are not completely fitted, but there is a space gradually increasing from the contact area of the second shell 11 with the ear EAR to the ear canal opening, i.e. a kind of wedge-shaped space is formed, so that a No. 1 barrel structure is formed between the sound outlet hole 1102 and the concha cavity E12, and the sound waves can be reflected by using the concha cavity E12 as a reflecting wall to enhance the reflection, so that the sound output from the sound outlet hole 1102 is enhanced by reflection in the concha cavity E12, so as to improve the sound pressure at the ear canal opening by using the reflection effect, so that the user can hear stronger sound, effectively improving the user experience.

[0107] Optionally, as shown in FIGS. 5 and 9, the first sound outlet end 102 and the sound inlet end 101 of the second sound inlet hole 1101 are respectively arranged symmetrically relative to the symmetry plane A1, the first shortest straight line segment L6 connects the first end point K6 and the position point of the hole along the sound inlet end 101 of the second sound inlet hole 1101 closest to the first end point K6, and the earphone 1 further has a third shortest straight line segment L9 connecting the first end point K6 and a second end point K7, and the included angle J3 between the first shortest straight line segment L6 and the third shortest straight line segment L9 is less than or equal to 75 degrees, for example, it can be 60 degrees, 65 degrees, 70 degrees, 75 degrees, etc., and of course it can also be other values.

[0108] By setting the included angle J3 between the first shortest straight line segment L6 and the third shortest straight line segment L9 to be less than or equal to 75 degrees, the orientation of the sound outlet hole 1102 relative to the second sound inlet hole 1101 is further limited, thereby effectively reducing the possibility that the sound transmitted from the sound outlet hole 1102 is introduced by the second sound inlet hole 1101, and facilitating the sound collection effect of the earphone 1.

[0109] Optionally, the length of the third shortest straight line segment L9 is greater than or equal to 7 mm, for example, it can be 7 mm, 10 mm, 13 mm, 15 mm, etc., and of course it can also be other values.

[0110] By setting the length of the third shortest straight line segment L9 to be greater than or equal to 7 mm, the size of the sound outlet hole 1102 is more consistent with the size and shape of the concha cavity E12 and the ear hole, and it is more convenient to form the No. 1 barrel structure for enhancing sound, thereby effectively improving the sound outlet effect of the earphone 1, effectively improving the sound pressure at the ear hole, and effectively increasing the sound volume.

[0111] Optionally, as shown in FIG. 9, the second sound inlet hole 1101 has an axis direction pointing to the outside of the second shell 11, which is referred to as a second axis direction F4, and the included angle J4 between the second axis direction F4 and the first shortest straight line segment L6 is greater than or equal to 40 degrees, for example, it can be 40 degrees, 45 degrees, 50 degrees, 55 degrees, etc., and of course it can also be other values.

[0112] By setting the included angle J4 between the second axis direction F4 and the first shortest straight line segment L6 to be greater than or equal to 40 degrees, the orientation of the second sound inlet hole 1101 relative to the sound outlet hole 1102 is further limited, thereby effectively reducing the possibility that the sound transmitted from the sound outlet hole 1102 is introduced by the second sound inlet hole 1101, and facilitating improvement of the sound receiving effect of the earphone 1.

[0113] Optionally, as shown in FIG. 9, on the symmetry plane A1, the outer wall surface of the second shell 11 has a third reference point K3 closest to the abutment portion 300, the inner contour of the ear hook 200 has a fourth reference point K4 farthest from the third reference point K3 in a region close to the helix edge in the wearing state, the outer wall surface of the second shell 11 further has a fifth reference point K5 farthest from the fourth reference point K4, and the first sound outlet end 102 and the sound inlet end 101 of the second sound inlet hole 1101 are located on two sides of the fifth reference point K5.

[0114] In the natural state, the outer wall surface of the sound generating portion 100 and the outer wall surface of the abutment portion 300 do not abut, and the distance between the outer wall surface of the sound generating portion 100 and the outer wall surface of the abutment portion 300 is the shortest at a position, and the line between the two positions with the shortest distance is an end point on the outer wall surface of the second shell 11, which is the third reference point K3. If the outer wall surface of the sound generating portion 100 and the outer wall surface of the abutment portion 300 abut in the natural state, the length of the shortest line between the outer wall surface of the sound generating portion 100 and the outer wall surface of the abutment portion 300 is almost 0 at this time, and the third reference point K3 should be the midpoint of the arc formed by the abutment region of the outer wall surface of the sound generating portion 100 and the outer wall surface of the abutment portion 300 at this time.

[0115] In the wearing state, the symmetry plane A1 is almost parallel to the horizontal plane of the human body. In the symmetry plane A1, the ear hook 200, the sound generating portion 100, and the abutment portion 300 have an inner contour, and the inner contour at least includes the fourth reference point K4. The fourth reference point K4 is the reference point in the inner contour farthest from the third reference point K3. In the wearing state, the fourth reference point K4 is a reference point on the inner contour of the ear hook 200 and corresponds to the edge of the helix E17 (for example, the topmost / outermost edge of the helix E17), and the fourth reference point K4 can be a turning point of the inner contour. For example, the inner contour is an overall contour line protruding away from the helix E17, and the radius of curvature of the part of the inner contour in the vicinity of the edge of the helix E17 gradually increases, then gradually decreases, and then gradually increases again from the fourth reference point K4 to the sound generating portion 100 and the abutment portion 300, respectively. The fifth reference point K5 is the position point of the sound generating portion 100 farthest from the fourth reference point K4.

[0116] By setting the first sound outlet end 102 and the sound inlet end 101 of the second sound inlet hole 1101 on two sides of the fifth reference point K5, the second shell 11 which is convex between the first sound outlet end 102 and the sound inlet end 101 of the second sound inlet hole 1101 can isolate the sound transmitted from the first sound outlet end 102, effectively reducing the possibility of the sound transmitted from the first sound outlet end 102 being introduced by the second sound inlet hole 1101, and facilitating improvement of the sound receiving effect of the earphone 1.

[0117] Optionally, as shown in FIG. 9, the sound inlet end 101 of the second sound inlet hole 1101 has a hole with a fourth shortest straight line segment L10 between the hole and the fifth reference point K5, and the ratio between the length of the fourth shortest straight line segment L10 and the length of the first shortest straight line segment L6 is between 0.71 and 0.96, for example, 0.75, 0.80, 0.85, 0.90, 0.95, etc., and of course other values are also possible.

[0118] By setting the ratio between the length of the fourth shortest straight line segment L10 and the length of the first shortest straight line segment L6 to be between 0.71 and 0.96, the position of the sound inlet end 101 of the second sound inlet hole 1101 relative to the fifth reference point K5 is reasonably set, the possibility of the sound transmitted from the sound outlet hole 1102 being introduced by the second sound inlet hole 1101 is reduced, and the sound receiving effect of the earphone 1 is facilitated to be improved.

[0119] In some embodiments, as shown in FIG. 14 and FIG. 15, the sound generating part 100 comprises a shell and a microphone and a sound generating assembly 13 arranged in the shell, wherein the shell can be the aforementioned second shell 11, and the microphone can be the aforementioned second microphone 12. The sound generating assembly 13 has at least one diaphragm 131, and the sound generating assembly 13 cooperates with the second shell 11 to form a first acoustic cavity 1301 and a second acoustic cavity 1302 on both sides of the diaphragm 131, and the second shell 11 is provided with a sound inlet hole, a sound outlet hole 1102 and a pressure relief hole 1103, wherein the sound inlet hole can be the aforementioned second sound inlet hole 1101, and the second microphone 12 collects external sound through the second sound inlet hole 1101, and sound in the first acoustic cavity 1301 is transmitted to the user's ear canal through the sound outlet hole 1102, and sound in the second acoustic cavity 1302 is transmitted to the outside of the second shell 11 through the pressure relief hole 1103. Specifically, the first acoustic cavity 1301 is the place where the diaphragm 131 vibrates to push the air to form sound waves for the user to listen to, and the second acoustic cavity 1302 is in communication with the pressure relief hole 1103 and thus with the outside world, for balancing the air pressure inside the second shell 11. The second sound inlet hole 1101 and the pressure relief hole 1103 are respectively arranged adjacent to the ear hook 200, and the sound outlet hole 1102 is arranged away from the ear hook 200 compared with the second sound inlet hole 1101 and the pressure relief hole 1103, the second sound inlet hole 1101 has a sound inlet end 101 located on the outer wall surface of the second shell 11, the pressure relief hole 1103 has a sound outlet end 104 located on the outer wall surface of the second shell 11, and the sound inlet end 101 of the second sound inlet hole 1101 has a shortest straight line segment between the hole along and the hole along of the sound outlet end 104 of the pressure relief hole 1103, which is referred to as a fifth shortest straight line segment L12, and the length of the fifth shortest straight line segment L12 is less than or equal to 4mm, for example, it can be 1mm, 2mm, 3mm, 3.5mm, etc., of course, it can also be other values, and the ear hook 200 is further arranged to block the transmission of sound from the pressure relief hole 1103 to the second sound inlet hole 1101.

[0120] By arranging the second sound inlet hole 1101 and the pressure relief hole 1103 adjacent to the ear hook 200 respectively, arranging the sound outlet hole 1102 away from the ear hook 200, and arranging the length of the fifth shortest straight line segment L12 to be less than or equal to 4mm, the sound outlet hole 1102 is kept at a relatively large distance from the second sound inlet hole 1101 and the pressure relief hole 1103 respectively, effectively reducing the possibility of interference caused by the transmission of sound from the sound outlet hole 1102 to the second sound inlet hole 1101 and the pressure relief hole 1103. In addition, the ear hook 200 can also provide a certain isolation between the second sound inlet hole 1101 and the pressure relief hole 1103, thereby effectively reducing the interference between the pressure relief hole 1103 and the second sound inlet hole 1101, effectively improving the reliability of the earphone 1, and being conducive to improving the sound collecting effect of the earphone 1.

[0121] Optionally, as shown in FIG. 16, the ear hook 200 forms a connecting area 201 on the second shell 11, the sound inlet end 101 of the second sound inlet hole 1101 and the sound outlet end 104 of the pressure relief hole 1103 are arranged on two sides of the connecting area 201 away from each other, or, as shown in FIG. 6, the second shell 11 includes a body part 111 and a connecting part 112, the connecting part 112 connects the body part 111 and the ear hook 200, and the sound inlet end 101 of the second sound inlet hole 1101 and the sound outlet end 104 of the pressure relief hole 1103 are arranged on two sides of the connecting part 112 away from each other.

[0122] By arranging the sound inlet end 101 of the second sound inlet hole 1101 and the sound outlet end 104 of the pressure relief hole 1103 on two sides of the connecting area 201 or the connecting part 112, the second sound inlet hole 1101 and the pressure relief hole 1103 are isolated by the connecting area 201 or the connecting part 112, which effectively reduces the possibility of mutual interference between the pressure relief hole 1103 and the second sound inlet hole 1101, effectively reduces the possibility of sound transmitted by the pressure relief hole 1103 being introduced by the second sound inlet hole 1101, and effectively reduces the possibility of phenomena such as sound leakage and echo, thereby improving the sound collection effect of the earphone 1.

[0123] Optionally, as shown in FIG. 6, in the wearing state, the second sound inlet hole 1101 is arranged on one side of the connecting area 201 or the connecting part 112 away from the helix, and the pressure relief hole 1103 is arranged on the other side of the connecting area or the connecting part 112 close to the helix.

[0124] By arranging the second sound inlet hole 1101 on one side of the connecting area 201 or the connecting part 112 away from the helix, the helix E17 of the user in the wearing state is prevented from blocking the second sound inlet hole 1101, thereby affecting the sound introduction of the second sound inlet hole 1101, and the sound collection effect of the earphone 1 is improved.

[0125] Optionally, as shown in FIG. 6, the connecting part 112 is arranged in a tapered shape away from the body part 111, so that the ear hook 200 is smoothly connected to the outer surface of the body part 111, thereby improving the aesthetics of the earphone 1. The second microphone 12 is arranged in the connecting part 112, and the second sound inlet hole 1101 is arranged on the connecting part 112, so as to make full use of the space of the connecting part 112, effectively improve the space utilization rate of the earphone 1, and make the structure of the earphone 1 more compact.

[0126] Optionally, as shown in FIG. 5, along the width direction F2 of the ear hook 200, the sound inlet end 101 of the second sound inlet hole 1101 and the sound outlet end 104 of the pressure relief hole 1103 are arranged at least partially overlapping the ear hook 200, respectively.

[0127] Specifically, the symmetry plane A1 is perpendicular to the width direction F2 of the ear hook 200, and when the ear hook 200 is projected to a reference line A3 which is perpendicular to the symmetry plane A1 and parallel to the width direction F2 of the ear hook 200 along the symmetry plane A1, the ear hook 200 has a first projection width S1, when the sound inlet end 101 of the second sound inlet hole 1101 is projected to the reference line A3 along the symmetry plane A1, the sound inlet end 101 of the second sound inlet hole 1101 has a third projection width S3, and when the sound outlet end 104 of the pressure relief hole 1103 is projected to the reference line A3 along the symmetry plane A1, the sound outlet end 104 of the pressure relief hole 1103 has a fourth projection width S4, the third projection width S3 and the fourth projection width S4 at least partially overlap with the first projection width S1, so that the ear hook 200 can form a barrier between the sound inlet end 101 of the second sound inlet hole 1101 and the sound outlet end 104 of the pressure relief hole 1103, thereby effectively reducing the possibility that the sound transmitted by the pressure relief hole 1103 is introduced by the second sound inlet hole 1101, and facilitating improvement of the sound receiving effect of the earphone 1.

[0128] Optionally, the maximum size of the overlapping part of the sound inlet end 101 of the second sound inlet hole 1101 and the ear hook 200 along the width direction F2 of the ear hook 200 is equal to the maximum size of the sound inlet end 101 of the second sound inlet hole 1101 along the width direction F2. As shown in FIG. 5, the maximum size of the sound inlet end 101 of the second sound inlet hole 1101 along the width direction F2 is the size of the third projection width S3. The maximum size of the overlapping part of the sound inlet end 101 of the second sound inlet hole 1101 and the ear hook 200 along the width direction F2 of the ear hook 200 is the size of the overlapping part of the third projection width S3 and the first projection width S1. That is, in the width direction F2 of the ear hook 200, the sound inlet end 101 of the second sound inlet hole 1101 completely overlaps with the ear hook 200, that is, the third projection width S3 is completely covered by the first projection width S1.

[0129] Optionally, the ratio of the maximum size of the overlapping part of the sound outlet end 104 of the pressure relief hole 1103 and the ear hook 200 along the width direction F2 of the ear hook 200 to the maximum size of the sound outlet end 104 of the pressure relief hole 1103 along the width direction F2 is greater than or equal to 90%. As shown in FIG. 5, the maximum size of the sound outlet end 104 of the pressure relief hole 1103 along the width direction F2 is the size of the fourth projection width S4. The maximum size of the overlapping part of the sound outlet end 104 of the pressure relief hole 1103 and the ear hook 200 along the width direction F2 of the ear hook 200 is the size of the overlapping part of the fourth projection width S4 and the first projection width S1. That is, the ratio of the size of the overlapping part of the fourth projection width S4 and the first projection width S1 to the size of the fourth projection width S4 is greater than or equal to 90%. For example, when the first projection width S1 is completely covered by the fourth projection width S4, the ratio between the first projection width S1 and the fourth projection width S4 is greater than or equal to 90%.

[0130] In this way, the ear hook 200 can better form a barrier between the sound inlet end 101 of the second sound inlet hole 1101 and the sound outlet end 104 of the pressure relief hole 1103, which is conducive to improving the sound receiving effect of the earphone 1.

[0131] Optionally, as shown in FIGS. 5 and 16, the ear hook 200 has a symmetry plane A1 arranged along the length direction F1 of the ear hook 200. The ear hook 200 includes the elastic member 21 and the elastic coating 22 wrapped around the periphery of the elastic member 21. At one end of the elastic member 21 close to the sound generating part 100, the ear hook 200 further has a reference plane perpendicular to the symmetry plane A1 and tangent to the elastic member 21, which is referred to as a third reference plane A4. The sound inlet end 101 of the second sound inlet hole 1101 is arranged on one side of the third reference plane A4, and the sound outlet end 104 of the pressure relief hole 1103 is arranged on the other side of the third reference plane A4. The elastic member 21 can be, for example, a titanium sheet, and the material of the elastic coating 22 can be, for example, silicone, rubber, elastic resin, polyurethane material, polydimethylsiloxane, PVC, TPE, or the like, so as to improve the wearing comfort.

[0132] By arranging the sound inlet end 101 of the second sound inlet hole 1101 and the sound outlet end 104 of the pressure relief hole 1103 on the two sides of the third reference plane A4, the hard shell on the two sides of the elastic member 21 is used to further block the sound inlet end 101 of the second sound inlet hole 1101 and the sound outlet end 104 of the pressure relief hole 1103, thereby further improving the isolation effect between the sound inlet end 101 of the second sound inlet hole 1101 and the sound outlet end 104 of the pressure relief hole 1103, which is conducive to improving the sound receiving effect of the earphone 1.

[0133] Optionally, as shown in FIG. 16, in the wearing state, the second sound inlet hole 1101 is arranged on the side of the third reference plane A4 away from the helix E17, and the pressure relief hole 1103 is arranged on the other side of the third reference plane A4 close to the helix E17, so that the second sound inlet hole 1101 can introduce external sound, while the pressure relief hole 1103 has a different orientation from the second sound inlet hole 1101 and is isolated from the second sound inlet hole 1101 by the hard shell on the two sides of the elastic member 21, effectively reducing the possibility of mutual interference between the second sound inlet hole 1101 and the pressure relief hole 1103, which is conducive to improving the sound receiving effect of the earphone 1.

[0134] Optionally, as shown in FIG. 9, on the outer wall surface of the second shell 11 and the ear hook 200, the hole along of the sound inlet end 101 of the second sound inlet hole 1101 and the hole along of the sound outlet end 104 of the pressure relief hole 1103 have the shortest wall surface connection line, which is referred to as the second shortest wall surface connection line L11. Among them, the second shortest wall surface connection line L11 is specifically the shortest arc segment formed between the hole along of the sound inlet end 101 of the second sound inlet hole 1101 and the hole along of the sound outlet end 104 of the pressure relief hole 1103 along the contour line of the outer wall surface of the second shell 11 and the ear hook 200.

[0135] The arc chord ratio of the second shortest wall surface connection line L11 is set to be greater than or equal to 1.7, for example, it can be 1.7, 1.8, 1.9, 2.0, etc., and of course it can also be other values. By setting the arc chord ratio of the second shortest wall surface connection line L11 to be greater than or equal to 1.7, the second shell 11 between the hole along of the sound inlet end 101 of the second sound inlet hole 1101 and the hole along of the sound outlet end 104 of the pressure relief hole 1103 is convex outward, and the convex outward second shell 11 can further isolate the second sound inlet hole 1101 and the pressure relief hole 1103, effectively reducing the possibility of mutual interference between the second sound inlet hole 1101 and the pressure relief hole 1103, and is beneficial to improve the sound receiving effect of the earphone 1.

[0136] Optionally, as shown in FIG. 16, the sound generating part 100 is provided with a partition plate 14, the second microphone 12 is arranged on the side of the partition plate 14 close to the ear hook 200, and the sound generating assembly 13 is arranged on the side of the partition plate 14 away from the ear hook 200. By arranging the partition plate 14 to separate the second microphone 12 and the sound generating assembly 13, the interference of the sound generating assembly 13 on the second microphone 12 is effectively reduced, which is beneficial to improve the sound receiving effect of the earphone 1.

[0137] The above is only an embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation using the content of the specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. An earphone, characterized by comprising: The earphone comprises a sound generating part, an abutting part and an ear hook, the ear hook connects the sound generating part and the abutting part, in a wearing state, the sound generating part and the abutting part form a clamping state on both sides of the helix, and the sound generating part is located in the concha cavity; the abutting part comprises two first microphones, the two first microphones are used for collecting first sound respectively, the sound generating part comprises a second microphone, the second microphone is used for collecting second sound, the earphone further comprises a detection element and a processing circuit, the detection element is used for detecting the relative position relationship of the two first microphones in the wearing state, the processing circuit controls one of the two first microphones which is relatively higher along the direction of gravity to be in an operating state and the other one which is relatively lower along the direction of gravity to be in a non-operating state according to the detection result of the detection element, and further performs noise reduction processing based on the first sound collected by the first microphone in the operating state and the second sound collected by the second microphone.

2. The earphone of claim 1, wherein, The ear hook has a symmetry plane arranged along the length direction of the ear hook, and the abutting part further comprises a first shell, the first shell is provided with two first sound inlet holes, each of the first microphones collects the first sound through a corresponding first sound inlet hole, and the two first sound inlet holes respectively have sound inlet ends located on the outer wall surface of the first shell, and the sound inlet ends of the two first sound inlet holes are arranged on both sides of the symmetry plane.

3. The earphone of claim 2, wherein The sound inlet ends of the two first sound inlet holes are symmetrically arranged relative to the symmetry plane.

4. The earphone of claim 2, wherein The first shell comprises a main body part, the main body part comprises a circumferential side wall and two oppositely arranged end walls, the circumferential side wall is used for contacting the back side of the helix, and the two first sound inlet holes are arranged on the two end walls of the abutting part.

5. The earphone of claim 2, wherein The first shell comprises a main body part, the main body part comprises a circumferential side wall and two oppositely arranged end walls, the circumferential side wall is used for contacting the back side of the helix, and the two first sound inlet holes are arranged on the circumferential side wall of the abutting part and located on the side of the circumferential side wall away from the sound generating part.

6. The earphone of claim 2, wherein, In the vertical direction of the symmetry plane, the shortest straight line distance of the sound inlet ends of the two first sound inlet holes is greater than or equal to 10 mm.

7. The earphone of claim 2, wherein The shortest straight line distance of the sound inlet ends of the two first sound inlet holes to the symmetry plane is greater than or equal to 5 mm.

8. The earphone of claim 1, wherein, The processing circuit is further configured to detect wind noise based on the first sound and / or the second sound, and when the detected wind noise is greater than or equal to a preset threshold, the processing circuit controls the other one of the two first microphones which is relatively lower along the direction of gravity to be in an operating state and controls the second microphone to be in a non-operating state.

9. The earphone of claim 2, wherein, The sound generating part comprises a second shell, the second shell is provided with a second sound inlet hole, the second microphone collects the second sound through the second sound inlet hole, the second sound inlet hole has a sound inlet end located on the outer wall surface of the second shell, and the minimum straight line distance between the sound inlet end of the first sound inlet hole and the sound inlet end of the second sound inlet hole is greater than or equal to 15 mm.

10. The earphone of claim 9, wherein, The first sound inlet hole has a first axis direction pointing to the outside of the first shell, and the second sound inlet hole has a second axis direction pointing to the outside of the second shell, and the included angle between the projection of the first axis direction on the symmetry plane and the projection of the second axis direction on the symmetry plane is greater than or equal to 115 degrees.

11. The earphone of claim 1, wherein, The earphone further comprises a switching device, the two first microphones are connected to the same audio port of the processing circuit via the switching device, and the processing circuit controls one of the two first microphones that is relatively higher in the direction of gravity to be connected to the processing circuit according to the detection result of the detection element, so that it is in the working state, and disconnects the other one that is relatively lower in the direction of gravity from the processing circuit, so that it is in the non-working state.

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