Earphone

Abstract

The earphone comprises an ear hook and a sound production part which are connected with each other, the ear hook is hung between the auricle and the head of a user, the sound production part is located on the front side of the auricle, the sound production part comprises a movement shell and a microphone, the ear hook is connected with the movement shell, and the microphone is arranged in the movement shell. The movement shell is provided with a connecting end connected with the ear hook and a free end far away from the connecting end, the connecting end is closer to the mouth of a user than the free end in a wearing state, a sound receiving hole located between the free end and the connecting end is formed in the movement shell, and the microphone collects sound outside the earphone through the sound receiving hole. The sound outlet end of the sound receiving hole is closer to the connecting end than the sound inlet end of the sound receiving hole. Through the above mode, the wind noise resistance of the earphone can be improved, and the pickup effect of the microphone can be effectively improved.

Description

Technical Field

[0001] This application relates to the technical field of electronic devices, particularly to earphones. Background Art

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

[0003] However, the sound pickup effect of the microphone structure in traditional earphones is poor. In addition, as the application scenarios of earphones become more complex, the requirement for the wind resistance and noise reduction ability of earphones is also getting higher and higher, making the current sound pickup effect of earphones unable to meet the user's usage requirements. Utility Model Content

[0004] To solve the above technical problems, a technical solution adopted in this application is to provide an earphone. The earphone includes an earhook and a sound generating part connected to each other. The earhook is hung between the user's auricle and head, and the sound generating part is located on the front side of the auricle. The sound generating part includes a movement housing and a microphone. The earhook is connected to the movement housing, and the microphone is disposed inside the movement housing. The movement housing has a connection end connected to the earhook and a free end away from the connection end. In the wearing state, the connection end is closer to the user's mouth than the free end. A sound collection hole is formed on the movement housing between the free end and the connection end. The microphone collects the sound outside the earphone through the sound collection hole, and the sound outlet end of the sound collection hole is closer to the connection end than the sound inlet end of the sound collection hole.

[0005] In some embodiments, the movement housing has a length direction and a thickness direction that are orthogonal to each other. The length direction is the direction of the interval between the connection end and the free end, and the thickness direction is the direction towards or away from the auricle in the wearing state. At least part of the hole section of the sound collection hole is inclined with respect to the length direction and the thickness direction.

[0006] In some embodiments, the movement housing includes a first side wall and a second side wall spaced apart along the thickness direction. The second side wall is closer to the auricle than the first side wall in the wearing state. The sound collection hole is disposed on the first side wall, and the extension direction of at least part of the hole section of the sound collection hole has an inclination angle with respect to the thickness direction that is greater than 0° and less than or equal to 40°.

[0007] In some embodiments, the number of sound collection holes corresponds to the number of microphones. Along the extension direction of the line connecting the centers of the sound outlet end and the sound inlet end, the cross-sectional area of the sound collection holes is the same, and the inclination angle is between 10° and 30°.

[0008] In some embodiments, the earphone further includes a composite acoustic impedance network arranged between the sound outlet end of the sound receiving hole and the microphone, the composite acoustic impedance network includes at least two layers of sub-acoustic impedance networks stacked on each other and spaced apart, and the sound input through the sound receiving hole is sequentially input into the microphone after passing through at least two layers of sub-acoustic impedance networks.

[0009] In some embodiments, the spacing distance between adjacent sub-acoustic resistance nets is between 0.05 mm and 0.3 mm, and / or the acoustic resistance of each sub-acoustic resistance net is between 200 MKS Rayls and 700 MKS Rayls.

[0010] In some embodiments, the number of the sound receiving holes corresponds to the number of the microphones, and the sound collecting area of the microphone is arranged closer to the connection end than the sound outlet end of the sound receiving hole.

[0011] In some embodiments, along the length direction, the distance between the sound collection area of the microphone and the sound outlet end of the sound receiving hole is between 2 mm and 3 mm.

[0012] In some embodiments, the inner wall of the movement housing has an annular partition, which is arranged to form a connecting groove, and the sound receiving hole is connected to the connecting groove; the earphone includes a circuit board and a sound guide seat, the sound guide seat is arranged on the side of the circuit board facing the connecting groove, and is provided with a sound guide channel, the sound guide seat is embedded in the connecting groove under the support of the circuit board, and the composite sound resistance net is pressed between the sound guide seat and the movement housing, the microphone is arranged on the other side of the circuit board away from the connecting groove, and a connecting hole is provided on the circuit board, and the microphone is connected to the sound receiving hole via the connecting hole and the sound guide channel.

[0013] In some embodiments, the movement shell has a length direction, a thickness direction and a width direction that are orthogonal to each other. The length direction is the spacing direction between the connecting end and the free end, and the thickness direction is the direction toward or away from the auricle in the worn state. The movement shell includes a first shell and a second shell. The first shell and the second shell cooperate with each other along the thickness direction and form a first joint seam. In the worn state, the first shell is farther away from the auricle than the second shell. The ear hook includes a transition portion, which is connected to the second shell to form a second joint seam. The outer surface of the second shell is provided with at least one installation groove in the shape of a long strip. The first joint seam, the long axis direction of the installation groove and the second joint seam are inclined in the same direction relative to the length direction.

[0014] In some embodiments, the first shell has a first side wall, the second shell has a second side wall, the first side wall and the second side wall are spaced apart in the thickness direction, the second side wall is closer to the auricle than the first side wall when worn, and the first joint seam, the long axis direction of the mounting groove and the second joint seam all gradually move away from the second side wall in the direction from the free end to the connecting end.

[0015] In some embodiments, the minimum spacing distance from the groove edge of the mounting groove to the first joint seam and / or from the groove edge of the mounting groove to the second joint seam is between 1 mm and 2 mm.

[0016] In some embodiments, the earphone further includes a speaker assembly disposed in the movement mechanism housing. The speaker assembly and the movement mechanism housing form an acoustic front cavity and an acoustic rear cavity. Wherein, a pressure relief hole located in the mounting groove is further provided on the second housing. The pressure relief hole communicates with the acoustic rear cavity. An acoustic mesh is disposed in the mounting groove, and the acoustic mesh covers the pressure relief hole. The ratio between the area of the pressure relief hole and the area of the mounting groove is between 0.2 and 0.7.

[0017] The beneficial effects of the present application are as follows: The earphone described in the present application is provided with a movement mechanism housing, and the movement mechanism housing is provided with a free end and a connection end. In the wearing state, the connection end of the earphone is closer to the user's mouth than the free end. Therefore, when the user makes movements such as walking, running or cycling forward, the airflow near the earphone generally flows from the connection end to the free end. Therefore, the sound inlet end of the sound collection hole is arranged closer to the free end than the sound outlet end of the sound collection hole, and the connection line between the sound outlet end and the sound inlet end of the sound collection hole can intersect the sagittal axis of the human body and form an acute angle with the sagittal axis in the direction from the front of the human body to the back of the human body. At the same time, the sound outlet end is closer to the sagittal axis of the human body than the sound inlet end, so that the sound collection hole is arranged to incline towards the back side of the user's brain compared with one side of the user's mouth. When the airflow flowing from the connection end to the free end flows into the sound collection hole at the sound inlet end, it will first be blocked by the hole wall of the sound collection hole and then further enter the sound collection hole, and then flow to the sound outlet end. The blocking of the airflow by the hole wall of the sound collection hole prevents the airflow from directly flowing to the sound outlet end, and the impact degree of the airflow on the microphone will be reduced during the blocking process of the airflow by the hole wall of the sound collection hole. Therefore, the arrangement that the sound inlet end of the sound collection hole is closer to the free end than the sound outlet end can reduce the impact force of the airflow on the microphone in the wearing state, thereby improving the wind noise resistance ability of the earphone and effectively improving the sound pickup effect of the microphone. Description of the Drawings

[0018] Figure 1 is a schematic diagram of the front side contour of the ear of the user described in the present application;

[0019] Figure 2 is a schematic diagram of a three-dimensional structure of one side of an embodiment of the earphone provided by the present application;

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

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

[0022] Figure 5 is Figure 4 the schematic explosion structure diagram of the sound generating part shown;

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

[0024] Figure 7 is Figure 6 the enlarged schematic diagram of the partial area B of the sound generating part shown;

[0025] Figure 8 is the schematic diagram of the effect comparison when at least part of the hole section of the sound receiving hole in the earphone embodiment provided by the present application has different inclination angles relative to the thickness direction.

[0026] Figure 9 is Figure 5 the schematic structure diagram of some components in the sound generating part shown;

[0027] Figure 10 is the corresponding schematic diagram of the effects of setting a single-layer sub-sound resistance net and setting a double-layer sub-double sound resistance net in the earphone embodiment provided by the present application;

[0028] Figure 11 is Figure 2 the schematic diagram of the other lateral direction of the sound generating part in the earphone embodiment shown;

[0029] Figure 12 is Figure 2 the three-dimensional structure schematic diagram of the other lateral direction of the earphone embodiment shown. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0031] When the present application mentions "embodiment", it means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. Those skilled in the art explicitly and implicitly understand that the embodiments described in the present application can be combined with other embodiments.

[0032] The following is an exemplary description of the earphone for the earphone embodiment.

[0033] In combination with Figure 1, the user's ear 100 may include physiological parts such as the external auditory canal 101, the concha cavity 102 and the auricle 103. Among them, although the external auditory canal 101 has a certain depth and extends to the eardrum of the ear 100, for the convenience of description, in the present application, unless otherwise specified, the external auditory canal 101 specifically refers to its entrance away from the eardrum (i.e., the ear hole). In addition, the concha cavity 102 has a certain volume and depth, and the concha cavity 102 is directly connected to the external auditory canal 101, that is, it can be simply regarded as the aforementioned ear hole is located at the bottom of the concha cavity 102.

[0034] The earphone 1 is an audio converter that can receive electrical signals from a media player or a receiver and convert the electrical signals into sound waves that the user can hear. In some embodiments, the earphone 1 can be an open earphone, such as an earhook earphone, a back-hook earphone, or an ear clip earphone.

[0035] like Figure 2 or Figure 3 As shown, the earphone 1 can be an earhook earphone. In some embodiments, when worn, at least a portion of the earphone 1 can be inserted into the concha cavity 102 of the user (user) to improve the stability of wearing. In some embodiments, the sound-emitting part of the earphone 1 can at least partially cover the auricle 103 of the user's ear, such as the antihelix, the cymba concha or the triangular fossa (not shown in the figure), but does not block the external auditory canal 101 of the user's ear or visually block the external auditory canal 101 of the user's ear. In some embodiments, the sound-emitting part 20 of the earphone 1 can also fit or abut against the facial area in front of the user's ear, with the side of the sound-emitting part 20 for sounding facing the user's ear or the external auditory canal 101 of the user.

[0036] Furthermore, different users may have individual differences, resulting in different shapes, sizes, and other dimensional differences in the ear 100. For ease of description, and to reduce (or even eliminate) individual differences between different users, a simulator containing a head and its (left and right) ears 100 can be made based on ANSI: S3.36, S3.25 and IEC: 60318-7 standards, such as GRAS 45BC KEMAR, HEAD Acoustics, B&K 4128 series or B&K 5128 series, so as to present the scene of most users wearing the earphone 1. Taking GRAS KEMAR as an example, the simulator of the ear 100 can be any one of GRAS 45AC, GRAS 45BC, GRAS 45CC or GRAS 43AG, etc.; taking HEAD Acoustics as an example, the simulator of the ear 100 can be any one of HMS II.3, HMS II.3LN or HMS II.3LN HEC, etc. Therefore, in this application, descriptions such as "the user wears the earphone 1", "the earphone 1 is in a wearing state", and "in a wearing state" may refer to the earphone 1 described in this application being worn on the ear 100 of the aforementioned simulator. Of course, precisely because of individual differences among different users, there may be certain differences between the earphone 1 worn by different users and the earphone 1 worn on the ear 100 of the aforementioned simulator, but such differences should be tolerated.

[0037] It should be noted that in the fields of medicine and anatomy, three basic planes of the human body or human body simulator can be defined: the sagittal plane, the coronal plane, and the horizontal plane, as well as three basic axes: the sagittal axis, the coronal axis, and the vertical axis. Among them, the sagittal plane refers to a plane perpendicular to the ground along the front-back direction of the body, which divides the human body or human body simulator into left and right parts; the coronal plane refers to a plane perpendicular to the ground along the left-right direction of the body, which divides the human body or human body simulator into front and back parts; the horizontal plane refers to a plane parallel to the ground along the up-down direction of the body, which divides the human body or human body simulator into upper and lower parts. Correspondingly, the sagittal axis refers to an axis along the front-back direction of the body and perpendicular to the coronal plane, the coronal axis refers to an axis along the left-right direction of the body and perpendicular to the sagittal plane, and the vertical axis refers to an axis along the up-down direction of the body and perpendicular to the horizontal plane. Furthermore, the “front side of the ear” described in the present application is a concept relative to the “back side of the ear”. The former refers to the side of the ear away from the head, and the latter refers to the side of the ear facing the head. They are both for the ear 100 of the user or the simulator. When observing the ear 100 of the human body or the human body simulator along the direction of the coronal axis, it can be seen as follows:Figure 1 as shown

[0038] Exemplarily, in combination with Figure 2 and Figure 3 , the earphone 1 may include an earhook 10 and a sound generating part 20 that are connected to each other. In the worn state, the earhook 10 may be hung between the user's auricle 103 and the head, that is, at least a part of the earhook 10 of the earphone 1 may be located at the rear side of the ear 100, so that the earphone 1 is hung on the ear 100, and the sound generating part 20 may be located at the front side of the auricle 103. The sound generating part 20 may be a sound playing device, and the sound generating part 20 may be configured to convert an electrical signal into a sound signal (which may also be referred to as "sound wave" or "sound signal") and transmit it to the ear 100 of the wearer.

[0039] In some embodiments, devices such as a battery or a circuit board may be provided inside the earhook 10, or the earhook 10 may be provided with both a battery and a circuit board at the same time. Of course, the earhook 10 may also not be provided with devices such as a battery and a circuit board, and the devices such as a battery and a circuit board may be installed in the sound generating part 20.

[0040] As Figures 2 to 5 shown, the sound generating part 20 may include a movement housing 210 and a microphone 220. The earhook 10 may be connected to the movement housing 210, and the microphone 220 may be disposed inside the movement housing 210. In some embodiments, the earphone 1 may further include a speaker assembly 30 disposed inside the movement housing 210. The speaker assembly 30 is a component that can convert an electrical signal into a corresponding sound signal to implement the sound playing function of the sound generating part 20. Exemplarily, the speaker assembly 30 may include a bone conduction speaker and an air conduction speaker. In other embodiments, the speaker assembly 30 may also be configured as one of an air conduction speaker and a bone conduction speaker.

[0041] In some embodiments, as Figure 2 and Figure 3 shown, the movement housing 210 may have a connection end 211 connected to the earhook 10 and a free end 212 away from the connection end 211. In the worn state, the connection end 211 is closer to the user's mouth than the free end 212. In other words, in the worn state, the free end 212 of the earphone 1 connected to the earhook 10 is closer to the rear side of the user's brain than the connection end 211.

[0042] In some embodiments, as Figures 4 to 7 shown, a sound collection hole 213 may be formed in the movement housing 210 between the free end 212 and the connection end 211, and the microphone 220 collects the sound outside the earphone 1 through the sound collection hole 213. The sound outside the earphone 1 may be, for example, the user's voice, a whistle, a bicycle bell, ambient voices, or a traffic command sound, etc.

[0043] In some embodiments, the sound output end 2131 of the sound receiving hole 213 may be closer to the connection end 211 than the sound input end 2132 of the sound receiving hole 213. Herein, the sound input end 2132 of the sound receiving hole 213 refers to the end of the sound receiving hole 213 facing the outside of the movement housing 210, and the sound outside the earphone 1 enters the sound receiving hole 213 from the sound input end 2132. The sound output end 2131 of the sound receiving hole 213 refers to the end of the sound receiving hole 213 facing the inside of the movement housing 210. After the sound enters the sound receiving hole 213 from the sound input end 2132, it then enters the inside of the movement housing 210 from the sound output end 2131 to be collected by the microphone 220.

[0044] Exemplarily, the direction of the line connecting the center of the sound output end 2131 and the center of the sound input end 2132 of the sound receiving hole 213 may intersect the sagittal axis of the human body and form an acute angle with the sagittal axis in the direction from the front of the human body to the back of the human body. At the same time, the sound output end 2131 is closer to the sagittal axis of the human body than the sound input end 2132, so that the sound receiving hole 213 is inclined toward the back of the user's head compared to one side of the user's mouth. The direction of the line connecting the sound output end 2131 and the sound input end 2132 of the sound receiving hole 213 may be as Figure 6 and Figure 7 shown by the arrow C in

[0045] In the worn state, the connection end 211 of the earphone 1 is closer to the user's mouth than the free end 212. Thus, when the user makes movements such as walking, running, or cycling forward, the air flow near the earphone 1 generally flows from the connection end 211 to the free end 212. Therefore, the sound input end 2132 of the sound receiving hole 213 is closer to the free end 212 than the sound output end 2131 of the sound receiving hole 213, so that the line connecting the sound output end 2131 and the sound input end 2132 of the sound receiving hole 213 can intersect the sagittal axis of the human body and form an acute angle with the sagittal axis in the direction from the front of the human body to the back of the human body, and the sound output end 2131 is closer to the sagittal axis of the human body than the sound input end 2132. When the air flow flowing from the connection end 211 to the free end 212 flows into the sound receiving hole 213 at the sound input end 2132, the air flow will first be blocked by the hole wall of the sound receiving hole 213 and then further enter the sound receiving hole 213, and then flow toward the sound output end 2131. The blocking of the air flow by the hole wall of the sound receiving hole 213 prevents the air flow from directly entering the sound receiving hole 213, and the impact degree of the air flow on the microphone 220 will be reduced during the process of the hole wall of the sound receiving hole 213 blocking the air flow. The setting that the sound input end 2132 of the sound receiving hole 213 is closer to the free end 212 than the sound output end 2131 can reduce the impact force of the air flow on the microphone 220 in the worn state, thereby improving the wind noise resistance ability of the earphone 1 and effectively enhancing the sound pickup effect of the microphone 220.

[0046] In some embodiments, the movement housing 210 may have a length direction, a thickness direction, and a width direction that are orthogonal to each other. The length direction may be the direction of the interval between the connection end 211 and the free end 212. Among them, the direction of the interval between the connection end 211 and the free end 212 refers to the extension direction of the line connecting the connection end 211 and the free end 212. In some embodiments, the connection end 211 and the free end 212 may be irregular or regular arc-shaped, and the extension direction of the line connecting the connection end 211 and the free end 212 may be the direction defined by a straight line perpendicular to the parallel cutting plane of the two reference points with the farthest relative distance on the connection end 211 and the free end 212. The length direction may also be defined as the direction in which the movement housing 210 approaches or moves away from the back of the head in the wearing state. In other words, the length direction may be as Figures 2 to 7 the direction indicated by the arrow X in

[0047] The thickness direction may be the direction in which the earphone 1 faces or deviates from the auricle 103 in the wearing state. The thickness direction may be as Figures 2 to 7 the direction indicated by the arrow Y in

[0048] The width direction may be defined as the direction in which the movement housing 210 approaches or moves away from the top of the head in the wearing state. The width direction may be as Figures 2 to 7 the direction indicated by the arrow Z in

[0049] In some embodiments, at least a part of the hole section of the sound collection hole 213 may be inclined with respect to the length direction X and the thickness direction Y. With such a setting, the sound output end 2131 of the sound collection hole 213 can be arranged closer to the connection end 211 than the sound input end 2132 of the sound collection hole 213. Thus, in the wearing state, when the external air flow enters the sound collection hole 213 from the sound input end 2132 and flows to the sound output end 2131, it is blocked by at least a part of the inclined hole section and does not directly flow to the sound output end 2131 and impact the microphone 220. Thereby, the impact force of the air flow on the microphone 220 in the wearing state can be reduced, and the wind noise resistance ability of the earphone 1 can be improved, and further the sound pickup effect of the microphone 220 can be effectively enhanced.

[0050] In some embodiments, the cross-sectional areas of the sound output end 2131 and the sound input end 2132 of the sound collection hole 213 may be the same.

[0051] In some embodiments, such as Figure 7As shown, along the extension direction of the line connecting the centers of the sound output end 2131 and the sound input end 2132, the cross-sectional area of the sound receiving hole 213 can be consistent, and the overall sound receiving hole 213 can be inclined with respect to the length direction X and the thickness direction Y. Setting the cross-sectional area of the sound receiving hole 213 to be consistent along the extension direction of the line connecting the centers of the sound output end 2131 and the sound input end 2132 can enable the hole wall of the sound receiving hole 213 to block most of the airflow when external sound passes through the sound receiving hole 213, thereby reducing wind noise, and can also reduce the attenuation of the effective sound information by the sound receiving hole 213, so as to ensure the sound pickup effect and the wind noise resistance effect of the microphone 220.

[0052] In some embodiments, the effective sound information may refer to target information, such as call voice information or warning information, etc. In some embodiments, the effective sound information may refer to target frequency band sound information, such as sound information with a frequency band in 500 Hz - 1 kHz, 1 kHz - 2 kHz, or 200 Hz - 2 kHz, etc.

[0053] In some embodiments, in order to ensure the wind noise resistance effect of the sound receiving hole 213, the inclination angle range of the extension direction of all hole segments of the sound receiving hole 213 with respect to the thickness direction Y can be between 0° and 40°. In some embodiments, in order to further improve the wind noise resistance effect of the sound receiving hole 213, the inclination angle range of the extension direction of all hole segments of the sound receiving hole 213 with respect to the thickness direction Y can be between 10° and 20°.

[0054] In some embodiments, a part of the hole segments of the sound receiving hole 213 can be inclined, and the hole segments of other parts can be bent to adapt to the internal structure of the movement housing 210, so that the bent hole segments can avoid other components inside the movement housing 210, and such a setting can further enhance the wind noise resistance effect of the sound receiving hole 213. In some embodiments, in order to further reduce the influence of wind noise, the sound receiving hole 213 can be integrally arranged in an arc shape.

[0055] In some embodiments, the sound receiving hole 213 can be arranged with multiple bends, so that while the sound output end 2131 of the sound receiving hole 213 is closer to the connection end 211 than the sound input end 2132 of the sound receiving hole 213, it can avoid other electronic components installed inside the movement housing 210 and prevent the size of the movement housing 210 from being too large.

[0056] In some embodiments, such as Figure 6 and Figure 7As shown, the movement housing 210 may include a first side wall 214 and a second side wall 215 spaced apart along the thickness direction Y. The second side wall 215 is closer to the auricle 103 than the first side wall 214 in the worn state. The sound collection hole 213 may be provided on the first side wall 214, and the extension direction of at least part of the hole section of the sound collection hole 213 has an inclination angle with respect to the thickness direction Y greater than 0° and less than or equal to 40°. As an example, the extension direction of at least part of the hole section of the sound collection hole 213 may also be as shown by the arrow C in Figure 7 , and the inclination angle of the extension direction of at least part of the hole section of the sound collection hole 213 with respect to the thickness direction Y may be as shown by the α angle in Figure 7 .

[0057] As shown in Figure 8 , Figure 8 shows a comparison of the effects when the extension direction of at least part of the hole section of the sound collection hole 213 has different inclination angles with respect to the thickness direction Y under the same conditions, and other conditions are the same except for the hole section inclination angle α. As can be seen from Figure 8 , the wind noise decibels collected by the microphone 220 gradually decrease as the inclination angle α increases. For example, when the inclination angle α of the extension direction of at least part of the hole section of the sound collection hole 213 with respect to the thickness direction Y is 10°, the wind noise decibels collected by the microphone 220 are lower than those when the inclination angle α is 0°. When the inclination angle α is 30°, the wind noise decibels are lower than those when the inclination angle α is 20°. Therefore, as can be seen from the effect shown in Figure 8 , the larger the inclination angle α of the extension direction of at least part of the hole section of the sound collection hole 213 with respect to the thickness direction Y, the better the wind noise reduction effect of the sound collection hole 213.

[0058] If the inclination angle α of the extension direction of all the hole sections of the sound collection hole 213 with respect to the thickness direction Y is equal to 0° (that is, the extension direction of the line connecting the center of the sound inlet end 2132 and the center of the sound outlet end 2131 of the sound collection hole 213 is parallel to the thickness direction Y), then when the external air flow flows through the movement housing 210, the air flow component along the thickness direction Y will directly pass through the sound collection hole 213 and vertically impact the microphone 220, generating a large amount of wind noise and reducing the sound pickup effect of the microphone 220.

[0059] When the inclination angle α of the extension direction of at least part of the hole section of the sound collection hole 213 with respect to the thickness direction Y is greater than 40°, the blocking effect of the hole wall of the sound collection hole 213 on the air flow is strong, but the sound collection hole 213 will also occupy a large space in the movement housing 210, and due to the too large inclination angle α, it is not conducive to the processing of the sound collection hole 213, thereby increasing the manufacturing difficulty of the earphone 1. Moreover, the larger inclination angle α of the sound collection hole 213 will further result in a longer length of the sound collection hole 213, thus excessively weakening the effective sound information entering the sound collection hole 213.

[0060] The tilt angle α is set to be greater than 0° and less than or equal to 40°. Thereby, it is beneficial to the wind noise resistance of the sound collecting hole 213, while reducing the processing difficulty of the sound collecting hole 213, reducing the space occupied by the sound collecting hole 213, and avoiding weakening the acquisition of effective sound information. For example, the tilt angle α of at least a part of the hole section of the sound collecting hole 213 relative to the thickness direction Y can be values such as 5°, 23°, 30°, or 40°.

[0061] In some embodiments, the tilt angle α can be between 10° and 30°. Setting the tilt angle α to be between 10° and 30° can ensure the wind noise resistance effect of the sound collecting hole 213, while reducing the processing difficulty of the sound collecting hole 213 and the space occupied by the sound collecting hole 213, and retaining more effective sound information. Exemplarily, the tilt angle α can be values such as 10°, 12°, 15°, 18°, 20°, or 25°.

[0062] In some embodiments, the number of the sound collecting holes 213 can correspond to the number of the microphones 220. That is, one microphone 220 corresponds to one sound collecting hole 213, and one microphone 220 collects external sounds only through one sound collecting hole 213. Such a setting can reduce the wind noise caused by the air flowing through multiple sound collecting holes 213, thereby improving the sound pickup effect of the microphone 220 and reducing the processing difficulty of the movement housing 210 at the same time.

[0063] Exemplarily, the sound generating part 20 can have multiple sound collecting holes 213 and multiple microphones 220. For example, the sound generating part 20 includes two microphones 220 and two sound collecting holes 213. The two microphones 220 and the two sound collecting holes 213 are arranged in one-to-one correspondence, ensuring that one microphone 220 collects external sounds only through one sound collecting hole 213.

[0064] In some embodiments, as Figure 7 and Figure 9 shown, the earphone 1 can further include a composite sound resistance net 40 disposed between the sound output end 2131 of the sound collecting hole 213 and the microphone 220. The composite sound resistance net 40 can include at least two sub-sound resistance nets 410 that are stacked and spaced from each other. The sound input through the sound collecting hole 213 is input to the microphone 220 after passing through at least two sub-sound resistance nets 410 in sequence.

[0065] Specifically, a composite acoustic resistance net 40 is provided between the sound outlet end 2131 of the sound receiving hole 213 and the microphone 220, so that after the air flow flows out from the sound outlet end 2131 of the sound receiving hole 213, the composite acoustic resistance net 40 can further reduce wind noise and increase the anti-wind noise effect, so as to improve the sound pickup effect of the microphone 220. In some embodiments, the sub-acoustic resistance net 410 can be a combination of a steel net and a gauze net, or can be all gauze nets or all steel nets.

[0066] In some embodiments, the number of the sub-acoustic resistance nets 410 can be two layers. The two layers of sub-acoustic resistance nets 410 can not only enhance the anti-wind noise effect, but also reduce the attenuation of effective sound information, so that the microphone 220 can collect relatively clear sounds, thereby improving the sound pickup effect. At the same time, it also avoids increasing the thickness of the movement housing 210 and reduces the excessive occupation of space.

[0067] As Figure 10 shown, Figure 10 shows the effect comparison of setting a double-layer sub-acoustic resistance net 410 and setting a single-layer sub-acoustic resistance net 410 under the same conditions, and the performance parameters of each sub-acoustic resistance net 410 are the same. As can be seen from Figure 10 this, when a double-layer sub-acoustic resistance net 410 is provided between the sound outlet end 2131 and the microphone 220, the wind noise decibels of the sound collected by the microphone 220 are lower than those of the sound collected when a single-layer sub-acoustic resistance net 410 is set. It can be seen that the anti-wind noise effect of setting two layers of sub-acoustic resistance nets 410 is better than that of setting a single-layer sub-acoustic resistance net 410.

[0068] In some embodiments, in order to improve the anti-wind noise ability of the earphone 1, for example, when the user uses the earphone 1 on a windy day or in a harsh weather environment, the number of the sub-acoustic resistance nets 410 can also be three layers, four layers, five layers or other values, and specific limitations are not made in this embodiment.

[0069] In some embodiments, the spacing distance between adjacent sub-acoustic resistance nets 410 can be between 0.05 mm and 0.3 mm. If the spacing distance between adjacent sub-acoustic resistance nets 410 is less than 0.05 mm, the preparation difficulty and connection difficulty of the sub-acoustic resistance nets 410 will increase. If the spacing distance between adjacent sub-acoustic resistance nets 410 is greater than 0.3 mm, the composite acoustic resistance net 40 will occupy a large space and the anti-wind noise effect will also be affected. Therefore, setting the spacing distance between adjacent sub-acoustic resistance nets 410 between 0.05 mm and 0.3 mm can reduce the occupied space of the composite acoustic resistance net 40, ensure the anti-wind noise effect of the composite acoustic resistance net 40, and also facilitate the addition and preparation of multiple layers of sub-acoustic resistance nets 410. Exemplarily, the spacing distance between adjacent sub-acoustic resistance nets 410 can be 0.05 mm, 0.1 mm, 0.15 mm, 0.2 mm, 0.25 mm or 0.3 mm and other values.

[0070] In some embodiments, adjacent sub-acoustic resistance nets 410 may be bonded together by gluing. Such a setting can make it easier to control the spacing distance between adjacent sub-acoustic resistance nets 410 within 0.05 mm to 0.3 mm, thereby reducing the space occupied by the composite acoustic resistance net 40, and facilitating the addition and preparation of multiple layers of sub-acoustic resistance nets 410, thereby ensuring the connection strength between the multiple layers of sub-acoustic resistance nets 410.

[0071] In some embodiments, the acoustic resistance of each sub-acoustic resistance net 410 can be between 200 MKS Rayls and 700 MKS Rayls. The acoustic resistance of the sub-acoustic resistance net 410 can affect the speed of the airflow passing through the sub-acoustic resistance net 410. The greater the acoustic resistance of the sub-acoustic resistance net 410, the more obvious the effect of the sub-acoustic resistance net 410 on the airflow speed, making the speed of the airflow passing through the sub-acoustic resistance net 410 slower. Correspondingly, the smaller the acoustic resistance of the sub-acoustic resistance net 410, the smaller the effect of the sub-acoustic resistance net 410 on the airflow speed.

[0072] If the acoustic impedance of the sub-acoustic impedance net 410 is less than 200 MKS Rayls, the sub-acoustic impedance net 410 has a smaller blocking effect on the airflow, thereby weakening the anti-wind noise capability of the sub-acoustic impedance net 410. If the acoustic impedance of the sub-acoustic impedance net 410 is greater than 700 MKS Rayls, the acoustic impedance of the sub-acoustic impedance net 410 is too large, which will greatly weaken the effective sound information, thereby affecting the sound pickup effect of the microphone 220. Therefore, the acoustic impedance of the sub-acoustic impedance net 410 can be set between 200 MKS Rayls and 700 MKS Rayls, so as to improve the anti-wind noise effect of the sub-acoustic impedance net 410 while reducing the weakening of the sound by the sub-acoustic impedance net 410, thereby improving the sound pickup effect of the microphone 220.

[0073] As an example, the acoustic impedance of the sub-acoustic impedance network 410 can be 200 MKS Rayls, 260 MKS Rayls, 370 MKS Rayls, 430 MKS Rayls or 660 MKS Rayls.

[0074] In some embodiments, Figure 7 As shown, the sound collection area 221 of the microphone 220 is arranged closer to the connection end 211 than the sound outlet end 2131 of the sound receiving hole 213, so that the sound collection area 221 and the sound outlet end 2131 are mutually offset in the length direction X and the thickness direction Y, thereby forming a corner between the sound collection area 221 and the sound outlet end 2131. Such an arrangement makes it difficult for the airflow to directly reach the sound collection area 221 of the microphone 220 after leaving the sound receiving hole 213 through the sound outlet end 2131, thereby reducing the wind noise generated by the airflow directly impacting the sound collection area 221 of the microphone 220, thereby achieving an improved wind noise resistance effect.

[0075] In some embodiments, along the length direction X, the distance between the sound collection area 221 of the microphone 220 and the sound outlet end 2131 of the sound receiving hole 213 may be between 2 mm and 3 mm. Herein, the distance between the sound collection area 221 of the microphone 220 and the sound outlet end 2131 of the sound receiving hole 213 refers to the distance from the center position of the sound collection area 221 to the hole center position of the sound outlet end 2131. The distance between the sound collection area 221 and the sound outlet end 2131 can be as shown by the distance d in Figure 7 If the distance between the sound collection area 221 of the microphone 220 and the sound outlet end 2131 of the sound receiving hole 213 is greater than 3 mm, the space between the microphone 220 and the sound receiving hole 213 will be relatively large, which will occupy a relatively large space in the movement housing 210 and extend the sound wave transmission path, increasing the loss of effective sound information. If the distance between the sound collection area 221 of the microphone 220 and the sound outlet end 2131 of the sound receiving hole 213 is less than 2 mm, the distance between the sound collection area 221 of the microphone 220 and the sound outlet end 2131 of the sound receiving hole 213 will be too small, and the airflow is likely to directly impact the sound collection area 221 of the microphone 220 after coming out from the sound outlet end 2131, resulting in poor wind noise resistance effect.

[0076] Setting the distance between the sound collection area 221 of the microphone 220 and the sound outlet end 2131 of the sound receiving hole 213 to be between 2 mm and 3 mm can enhance the wind noise resistance effect while avoiding excessive loss of effective sound information, reducing the space occupied between the microphone 220 and the sound receiving hole 213, and thus reducing the size of the movement housing 210 in the length direction X.

[0077] Exemplarily, the distance between the sound collection area 221 of the microphone 220 and the sound outlet end 2131 of the sound receiving hole 213 can be set to values such as 2 mm, 2.3 mm, 2.5 mm, 2.7 mm or 3 mm.

[0078] In some embodiments, as shown in Figure 7 , the inner wall of the movement housing 210 may have an annular partition 216, and the annular partition 216 can enclose and form a communication groove 2161, and the sound receiving hole 213 communicates with the communication groove 2161.

[0079] As shown in Figure 7 and Figure 9As shown, the earphone 1 may include a circuit board 50 and a sound guide seat 60. The circuit board 50 and the sound guide seat 60 are both installed in the movement housing 210. The sound guide seat 60 is opposite to and coaxial with the connecting groove 2161. The sound guide seat 60 can be arranged on the side of the circuit board 50 facing the connecting groove 2161, and is provided with a sound guide channel 610. The sound guide seat 60 can be embedded in the connecting groove 2161 under the support of the circuit board 50, and the composite sound resistance net 40 is pressed between the sound guide seat 60 and the movement housing 210. The microphone 220 can be arranged on the other side of the circuit board 50 away from the connecting groove 2161, and the circuit board 50 can be provided with a connecting hole 510, and the sound collection area 221 of the microphone 220 is connected to the sound receiving hole 213 through the connecting hole 510 and the sound guide channel 610. With such arrangement, the annular partition 216 and the sound guide seat 60 can limit and fix the composite sound resistance net 40, ensuring that the composite sound resistance net 40 will not be easily displaced during the installation process, thereby ensuring the anti-wind noise effect of the earphone 1.

[0080] In some embodiments, the circuit board 50 and the annular partition 216 may be abutted or connected, so that the sound guide seat 60 may at least partially extend into the connecting groove 2161. In order to avoid the loss of effective sound information caused by the sound wave dissipation, a sealing gasket (not shown in the figure) may be further provided between the sound guide seat 60 and the circuit board 50. In some embodiments, the circuit board 50 and the annular partition 216 may be connected by bonding, welding, clamping, screwing or sealing connection.

[0081] In some embodiments, Figure 2 As shown, the movement housing 210 may include a first housing 217 and a second housing 218. The first housing 217 and the second housing 218 may be matched with each other along the thickness direction Y and form a first joint seam 201. In the wearing state, the first housing 217 is farther away from the auricle 103 than the second housing 218.

[0082] In some embodiments, Figure 2 As shown, the ear hook 10 may include a transition portion 110, which is connected to the second shell 218 and forms a second joint seam 202. The outer surface of the second shell 218 may be provided with at least one installation groove 2171 arranged in a long strip shape. The long axis direction of the first joint seam 201, the installation groove 2171 and the second joint seam 202 are all inclined in the same direction relative to the length direction X.

[0083] In some embodiments, the first joint seam 201 may be at least part of the mold seam between the first shell 217 and the second shell 218. The second joint seam 202 may be at least part of the mold seam between the adapter portion 110 of the ear hook 10 and the second shell 218. The long axis direction of the mounting groove 2171 refers to the direction in which the mounting groove 2171 arranged in a long strip shape extends along its length direction. The long axis direction of the mounting groove 2171 may be as follows:Figure 11 The direction indicated by the arrow in E.

[0084] In some embodiments, Figure 2 , Figure 11 as well as Figure 12 As shown, the movement housing 210 may have a third side wall 219 and a fourth side wall 2110, the third side wall and the fourth side wall 2110 may be spaced apart along the width direction Z, the third side wall 219 may be connected to the first side wall 214 and the second side wall 215 respectively along the thickness direction Y, and the fourth side wall 2110 may be connected to the first side wall 214 and the second side wall 215 respectively along the thickness direction Y. The first joint seam 201 is a partial mold seam between the first housing 217 and the second housing 218 located on the third side wall 219, and the second joint seam 202 is a partial mold seam between the adapter 110 and the second housing 218 located on the third side wall 219.

[0085] The first joint seam 201, the long axis direction of the mounting groove 2171 and the second joint seam 202 are inclined in the same direction relative to the length direction X, which means that the first joint seam 201, the long axis direction of the mounting groove 2171 and the second joint seam 202 are all inclined relative to the length direction X, and the inclination angles are the same or the difference does not exceed 5°. In this way, the first shell 217, the second shell 218 and the adapter 110 of the ear hook 10 can support each other, thereby improving the strength of the second shell 218 at the mounting groove 2171, and further improving the strength of the movement shell 210. Moreover, the parallel arrangement of the first joint seam 201 and the second joint seam 202 does not require adjusting the installation direction to align the first shell 217 and the second shell 218 during the installation process, thereby reducing the installation process and improving the efficiency of the installation. The parallel and same-direction inclination of the first joint seam 201, the long axis direction of the mounting groove 2171 and the second joint seam 202 can also improve the aesthetics of the earphone 1.

[0086] In some embodiments, Figure 5 , Figure 6 as well as Figure 11 As shown, the earphone 1 includes a speaker assembly 30 disposed in a core housing 210, and the speaker assembly 30 can cooperate with the core housing 210 to form an acoustic front cavity 310 and an acoustic rear cavity 320. The speaker assembly 30 includes a speaker 330, and the speaker 330 can be an air conduction speaker. The speaker 330 includes a diaphragm 321, and the diaphragm 321 separates the acoustic front cavity 310 and the acoustic rear cavity 320.

[0087] The second housing 218 may be provided with a sound outlet hole 2173. The acoustic front cavity 310 communicates with the sound outlet hole 2173, and the sound generated on the front side of the diaphragm 321 is transmitted to the outside through the acoustic front cavity 310 and the sound outlet hole 2173. In some embodiments, the second housing 218 is further provided with a pressure relief hole 2172 located in the mounting groove 2171. The pressure relief hole 2172 communicates the acoustic rear cavity 320 with the outside of the movement housing 210, so that the air pushed by the rear side of the diaphragm 321 can flow from the acoustic rear cavity 320 to the outside of the movement housing 210, thereby preventing the pressure accumulation in the acoustic rear cavity 320 from affecting the sound quality of the speaker assembly 30 as much as possible.

[0088] In some embodiments, as Figure 11 shown, an acoustic net 70 may be provided in the mounting groove 2171, and the acoustic net 70 may cover the pressure relief hole 2172. Specifically, the acoustic net 70 is disposed on the side of the pressure relief hole 2172 facing away from the inside of the movement housing 210, and the acoustic net 70 is exposed on the outer surface of the movement housing 210. Among them, the acoustic net 70 is used to isolate dust, particles, water droplets, etc. in the air, so that dust particles and water droplets in the air are not easily introduced into the acoustic rear cavity 320, thereby reducing the degree of corrosion or affecting the damage of the speaker assembly 30.

[0089] Exemplarily, the acoustic net 70 may be an isolation cotton sheet, a gauze, a steel net, or the like.

[0090] In some embodiments, the ratio between the area of the pressure relief hole 2172 and the area of the mounting groove 2171 may be between 0.2 and 0.7. The area of the mounting groove 2171 refers to the area of the long strip of the mounting groove 2171 arranged in a long strip shape. If the ratio between the area of the pressure relief hole 2172 and the area of the mounting groove 2171 is less than 0.2, it means that the area of the pressure relief hole 2172 is too small or the area of the mounting groove 2171 is too large. The too small area of the pressure relief hole 2172 may result in poor pressure relief effect on the acoustic rear cavity 320, thus affecting the sound quality of the speaker assembly 30. The too large area of the mounting groove 2171 will increase the overall size of the earphone 1 and affect the wearing comfort. If the ratio between the area of the pressure relief hole 2172 and the area of the mounting groove 2171 is greater than 0.7, it means that the occupied area of the pressure relief hole 2172 in the mounting groove 2171 is too large, which is not conducive to installing the acoustic net 70 in the mounting groove 2171. Therefore, setting the ratio between the area of the pressure relief hole 2172 and the area of the mounting groove 2171 between 0.2 and 0.7 can enhance the pressure relief effect on the acoustic rear cavity 320 while also facilitating the installation of the acoustic net 70 in the mounting groove 2171 and reducing the assembly difficulty of the earphone 1.

[0091] Exemplarily, the ratio between the area of the pressure relief hole 2172 and the area of the mounting groove 2171 can be set to numerical values such as 0.2, 0.3, 0.4, 0.5 or 0.6 etc.

[0092] In some embodiments, the minimum spacing distance from the edge of the mounting groove 2171 to the first joint seam 201 or from the edge of the mounting groove 2171 to the second joint seam 202 can be between 1 mm and 2 mm.

[0093] Among them, the minimum spacing distance from the edge of the mounting groove 2171 to the first joint seam 201 can be as Figure 11 shown by the distance F. The minimum spacing distance from the edge of the mounting groove 2171 to the second joint seam 202 can be as Figure 11 shown by the distance G.

[0094] Specifically, if the minimum spacing distance from the edge of the mounting groove 2171 to the first joint seam 201 or from the edge of the mounting groove 2171 to the second joint seam 202 is less than 1 mm, it means that the mounting groove 2171 is too close to the edge position of the second housing 218. In this way, it is difficult to form the mounting groove 2171 on the second housing 218, which will increase the manufacturing difficulty of the earphone 1 and at the same time affect the structural strength of the movement housing 210. If the minimum spacing distance from the edge of the mounting groove 2171 to the first joint seam 201 or from the edge of the mounting groove 2171 to the second joint seam 202 is greater than 2 mm, it means that the processing space of the mounting groove 2171 is too small. If the processing space of the mounting groove 2171 is too small, it will affect the size of the pressure relief hole 2172, which will affect the pressure relief effect of the pressure relief hole 2172 on the acoustic rear cavity 320, or it means that the second housing 218 is too large, which may affect the size of the sound generating part 20 of the earphone 1.

[0095] Therefore, setting the minimum spacing distance from the edge of the mounting groove 2171 to the first joint seam 201 or from the edge of the mounting groove 2171 to the second joint seam 202 between 1 mm and 2 mm can be conducive to forming the mounting groove 2171 on the second housing 218, can reduce the manufacturing difficulty of the earphone 1, and can also ensure the pressure relief effect of the pressure relief hole 2172 on the acoustic rear cavity 320 and reduce the size of the sound generating part 20 of the earphone 1.

[0096] In some embodiments, the minimum spacing distance from the edge of the mounting groove 2171 to the first joint seam 201 and the minimum spacing distance from the edge of the mounting groove 2171 to the second joint seam 202 can both be between 1 mm and 2 mm.

[0097] Exemplarily, the minimum spacing distance from the groove edge of the mounting groove 2171 to the first joint seam 201 or the minimum spacing distance from the groove edge of the mounting groove 2171 to the second joint seam 202 can be values such as 1 mm, 1.32 mm, 1.66 mm, or 1.82 mm. Alternatively, both the minimum spacing distance from the groove edge of the mounting groove 2171 to the first joint seam 201 and the minimum spacing distance from the groove edge of the mounting groove 2171 to the second joint seam 202 can be values such as 1 mm, 1.32 mm, 1.66 mm, or 1.82 mm.

[0098] In some embodiments, as Figure 11 shown, the first housing 217 may have a first side wall 214, the second housing 218 may have a second side wall 215, and the first side wall 214 and the second side wall 215 may be spaced apart along the thickness direction Y. The second side wall 215 may be closer to the auricle 103 than the first side wall 214 in the worn state.

[0099] In some embodiments, the first joint seam 201, the major axis direction of the mounting groove 2171, and the second joint seam 202 may all gradually move away from the second side wall 215 along the direction from the free end 212 to the connection end 211. In other words, one end of the first joint seam 201, the mounting groove 2171, and the second joint seam 202 close to the free end 212 is away from the first side wall 214, and one end of the first joint seam 201, the mounting groove 2171, and the second joint seam 202 away from the free end 212 is close to the first side wall 214.

[0100] Since the earphone 1 is worn on the user's ear 100 and the user is most likely to touch the free end 212 and the first side wall 214 close to the free end 212 when touching the earphone 1 for operation, setting the mounting groove 2171 such that one end thereof close to the free end 212 is away from the first side wall 214 can prevent the user from easily pressing on the mounting groove 2171 when touching the sound generating part 20, thereby not easily blocking the pressure relief hole 2172, so as to ensure the pressure relief effect of the pressure relief hole 2172 on the acoustic rear cavity 320 as much as possible.

[0101] In some embodiments, in combination with Figure 5 、 Figure 6 and Figure 11, the speaker assembly 30 may include a voice coil bracket 340. The speaker 330 is provided with an annular tabletop 331. The voice coil bracket 340 is supported on the annular tabletop 331 and cooperates with the speaker 330 to form an acoustic rear cavity 320. When observed in the width direction Z, the hole edge of the pressure relief hole 2172 has an edge straight segment 2174, and the edge straight segment 2174 is flush with or parallel to the annular tabletop 331. By setting the hole edge of the pressure relief hole 2172 to cooperate with the annular tabletop 331 in this way, the pressure relief hole 2172 can avoid the annular tabletop 331, thereby reducing the ineffective area of the pressure relief hole 2172 and improving the space utilization rate.

[0102] In some embodiments, the number of the mounting grooves 2171 and the pressure relief holes 2172 may be multiple, and the number of the mounting grooves 2171 corresponds to the number of the pressure relief holes 2172, that is, one pressure relief hole 2172 is correspondingly arranged in one mounting groove 2171.

[0103] As an example, in combination with Figure 3 and Figure 12 , the number of the mounting grooves 2171 may be two. The two mounting grooves 2171 are both arranged on the second housing 218 and are spaced along the width direction Z. The groove walls in each mounting groove 2171 are correspondingly provided with pressure relief holes 2172, and the two pressure relief holes 2172 can both communicate with the acoustic rear cavity 320. The number of the acoustic meshes 70 may also be two, and the two acoustic meshes 70 are respectively mounted in the two mounting grooves 2171.

[0104] In some embodiments, multiple pressure relief holes 2172 may also be opened in one mounting groove 2171. For example, two or three pressure relief holes 2172 may be opened in one mounting groove 2171. By setting in this way, higher pressure relief requirements can be met, thereby largely preventing pressure accumulation in the acoustic rear cavity 320 and further improving the sound quality effect of the speaker assembly 30.

[0105] In summary, the earphone 1 described in the present application is provided with a movement housing 210, and the movement housing 210 is provided with a free end 212 and a connection end 211. Among them, in the wearing state, the connection end 211 of the earphone 1 is closer to the user's mouth than the free end 212. Therefore, when the user makes movements such as walking, running or cycling forward, the airflow near the earphone 1 usually flows from the connection end 211 to the free end 212. Therefore, the sound inlet end 2132 of the sound collecting hole 213 is arranged closer to the free end 212 than the sound outlet end 2131 of the sound collecting hole 213, and the connection line between the sound outlet end 2131 and the sound inlet end 2132 of the sound collecting hole 213 can intersect the sagittal axis of the human body and form an acute angle with the sagittal axis in the direction from the front of the human body to the back of the human body. At the same time, the sound outlet end 2131 is closer to the sagittal axis of the human body than the sound inlet end 2132, so that the sound collecting hole 213 is arranged to incline towards the back of the user's head on one side compared with the user's mouth. When the airflow flowing from the connection end 211 to the free end 212 flows into the sound collecting hole 213 at the sound inlet end 2132, it will be blocked by the hole wall of the sound collecting hole 213 and then further enter the sound collecting hole 213, and then flow to the sound outlet end 2131. The blocking of the airflow by the hole wall of the sound collecting hole 213 prevents the airflow from directly flowing to the sound outlet end 2131, and the impact degree of the airflow on the microphone 220 will be reduced during the process of the hole wall of the sound collecting hole 213 blocking the airflow. Therefore, the arrangement that the sound inlet end 2132 of the sound collecting hole 213 is closer to the free end 212 than the sound outlet end 2131 can reduce the impact force of the airflow on the microphone 220 in the wearing state, thereby improving the wind noise resistance ability of the earphone 1 and effectively improving the sound pickup effect of the microphone 220.

[0106] The above are only the embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present application, or directly or indirectly applied in other related technical fields, shall be included in the patent protection scope of the present application by the same token.

Claims

1. A headset, characterized in that, The earphone includes an ear hook and a sound generating part connected to each other. The ear hook is hung between the user's auricle and head. The sound generating part is located on the front side of the auricle. The sound generating part includes a movement housing and a microphone. The ear hook is connected to the movement housing. The microphone is arranged inside the movement housing. The movement housing has a connection end connected to the ear hook and a free end away from the connection end. In the wearing state, the connection end is closer to the user's mouth than the free end. A sound collection hole is formed in the movement housing between the free end and the connection end. The microphone collects the sound outside the earphone through the sound collection hole. The sound output end of the sound collection hole is closer to the connection end than the sound input end of the sound collection hole.

2. The earphone according to claim 1, characterized in that, The movement housing has a length direction and a thickness direction that are orthogonal to each other. The length direction is the direction of the interval between the connection end and the free end. The thickness direction is the direction towards or away from the auricle in the wearing state. At least part of the hole section of the sound collection hole is arranged obliquely with respect to the length direction and the thickness direction.

3. The earphone according to claim 2, wherein, The movement housing includes a first side wall and a second side wall arranged at intervals along the thickness direction. The second side wall is closer to the auricle than the first side wall in the wearing state. The sound collection hole is arranged on the first side wall, and the extension direction of at least part of the hole section of the sound collection hole has an inclination angle greater than 0° and less than or equal to 40° with respect to the thickness direction.

4. The earphone according to claim 3, wherein, The number of the sound collection holes corresponds to the number of the microphones. Along the extension direction of the connection line between the centers of the sound output end and the sound input end, the cross-sectional areas of the sound collection holes are the same, and the inclination angle is between 10° and 30°.

5. The earphone according to any one of claims 2-4, characterized in that, The earphone further includes a composite sound resistance net arranged between the sound output end of the sound collection hole and the microphone. The composite sound resistance net includes at least two sub-sound resistance nets that are stacked and arranged at intervals. The sound input through the sound collection hole is input to the microphone after passing through the at least two sub-sound resistance nets in sequence.

6. The earphone according to claim 5, characterized in that, The interval distance between adjacent sub-sound resistance nets is between 0.05 mm and 0.3 mm, and / or the sound resistance of each sub-sound resistance net is between 200 MKS Rayls and 700 MKS Rayls.

7. The earphone according to claim 5, characterized in that, The number of the sound collection holes corresponds to the number of the microphones. The sound collection area of the microphone is closer to the connection end than the sound output end of the sound collection hole.

8. The earphone according to claim 7, characterized in that, Along the length direction, the interval distance between the sound collection area of the microphone and the sound output end of the sound collection hole is between 2 mm and 3 mm.

9. The earphone according to claim 5, wherein The inner wall of the movement housing has an annular partition. The annular partition encloses and forms a communication groove. The sound collection hole communicates with the communication groove; The earphone includes a circuit board and a sound guide seat, the sound guide seat is arranged on the side of the circuit board facing the connecting groove and is provided with a sound guide channel, the sound guide seat is embedded in the connecting groove under the support of the circuit board, and the composite sound resistance net is pressed between the sound guide seat and the movement housing, the microphone is arranged on the other side of the circuit board away from the connecting groove, the circuit board is provided with a connecting hole, and the microphone is connected to the sound receiving hole through the connecting hole and the sound guide channel.

10. The earphone according to claim 1, wherein, The movement shell has a length direction, a thickness direction and a width direction that are orthogonal to each other, the length direction is the spacing direction between the connecting end and the free end, the thickness direction is the direction toward or away from the auricle in the wearing state, the movement shell includes a first shell and a second shell, the first shell and the second shell cooperate with each other along the thickness direction, and form a first joint seam, in the wearing state, the first shell is farther away from the auricle than the second shell, the ear hook includes a transition part, the transition part is connected to the second shell, and a second joint seam is formed, and the outer surface of the second shell is provided with at least one installation groove arranged in a long strip shape, the first joint seam, the long axis direction of the installation groove and the second joint seam are inclined in the same direction relative to the length direction.

11. The earphone according to claim 10, wherein The first shell has a first side wall, and the second shell has a second side wall. The first side wall and the second side wall are spaced apart along the thickness direction. The second side wall is closer to the auricle than the first side wall in the wearing state. The first joint seam, the long axis direction of the mounting groove and the second joint seam all gradually move away from the second side wall in the direction from the free end to the connecting end.

12. The earphone according to claim 10 or 11, characterized in that, The minimum spacing distance between the groove edge of the installation groove and the first joint seam and / or the groove edge of the installation groove and the second joint seam is between 1 mm and 2 mm.

13. The earphone according to claim 10, characterized in that, The earphone also includes a speaker assembly arranged in the movement shell, and the speaker assembly and the movement shell form an acoustic front cavity and an acoustic rear cavity; wherein, the second shell is also provided with a pressure relief hole located in the mounting groove, and the pressure relief hole is connected to the acoustic rear cavity, and an acoustic net is arranged in the mounting groove, and the acoustic net covers the pressure relief hole, and the ratio between the area of the pressure relief hole and the area of the mounting groove is between 0.2 and 0.7.

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