earphone

Abstract

The earphone comprises a sound generating part and an ear hanging part, a free end is inserted into a concha cavity in a wearing state, the sound generating part comprises a shell assembly and a loudspeaker assembly arranged in the shell assembly, the shell assembly comprises an inner side surface facing the external auditory canal in the wearing state; the loudspeaker assembly comprises a ring-shaped support and a sound outlet cavity, the ring-shaped support is provided with a first sound outlet channel communicating with the sound outlet cavity, and the first sound outlet channel is located on a side of the ring-shaped support close to the inner side surface; the ear hanging part has a first symmetry surface, the loudspeaker assembly has a second symmetry surface, the second symmetry surface passes through the first sound outlet channel, and in observation along the intersection line of the first symmetry surface and the second symmetry surface, the side of the ring-shaped support away from the inner side surface is closer to the highest point of the ear hanging part than the side of the ring-shaped support close to the inner side surface. Through the above manner, the sound wave output by the loudspeaker assembly can be transmitted to the external auditory canal with a shortened sound path, so as to improve the sound outlet effect of the earphone and improve the auditory experience of the user.

Description

Technical Field

[0001] This application relates to the field of electronic device technology, and in particular to headphones. Background Technology

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

[0003] Currently, when headphones are worn in a user's ear, the sound output channel is usually offset from the external auditory canal, making it difficult to align with the external auditory canal. This results in a longer sound path, reducing the user's listening experience and affecting the overall user experience. Utility Model Content

[0004] To solve the above-mentioned technical problems, one technical solution adopted in this application is to provide an earphone that can shorten the sound path of the sound waves output by the speaker assembly to the external ear canal, thereby improving the sound output effect of the earphone and enhancing the user's listening experience.

[0005] The earphone provided in this application includes a sound-generating part and an ear hook part. The sound-generating part has a connecting end connected to the ear hook part and a free end away from the connecting end. In the wearing state, the ear hook part is wrapped around the back of the ear root and the free end is inserted into the concha cavity without blocking the external auditory canal. The sound-generating part includes a shell assembly and a speaker assembly disposed inside the shell assembly and close to the free end. The shell assembly includes an inner side facing the external auditory canal in the wearing state. The speaker assembly includes an annular bracket and a sound outlet cavity. A first sound outlet channel communicating with the sound outlet cavity is provided on the annular bracket. The first sound outlet channel is located on the side of the annular bracket closer to the inner side. In the natural state, the ear hook part has a first symmetry plane arranged along the extension direction of the ear hook part. The speaker assembly has a second symmetry plane perpendicular to the axis of the annular bracket. The second symmetry plane passes through the first sound outlet channel. The second symmetry plane is inclined relative to the first symmetry plane. When viewed along the intersection of the first symmetry plane and the second symmetry plane, the side of the annular bracket away from the inner side is closer to the highest point of the ear hook part that is farthest from the sound-generating part than the side of the annular bracket that is closer to the inner side.

[0006] In some embodiments, the first included angle between the first plane of symmetry and the second plane of symmetry is between 70° and 80°.

[0007] In some embodiments, the first included angle between the first plane of symmetry and the second plane of symmetry is between 75° and 77°.

[0008] In some embodiments, the first sound outlet channel is elongated along the circumference of the annular support and has a third symmetry plane arranged along the length of the elongated shape, the third symmetry plane being substantially parallel to the second symmetry plane.

[0009] In some embodiments, the inner surface has a first region corresponding to the housing assembly that accommodates the speaker assembly and a second region located between the first region and the ear hook portion. The first region protrudes from the second region, and in a first reference direction perpendicular to the first plane of symmetry, the first region has a first reference point furthest from the second region. In its natural state, the distance between the first reference point and the first plane of symmetry along the first reference direction is less than or equal to 5 mm.

[0010] In some embodiments, in the first reference direction, the second region or ear loop has a second reference point that is closest to the first reference point. The first reference point forms a first projection point on the first symmetry plane along the first reference direction, and the second reference point forms a second projection point on the first symmetry plane along the first reference direction. The distance between the first projection point and the second projection point is between 23mm and 25mm.

[0011] In some embodiments, the housing assembly has a first portion for accommodating a speaker assembly and a second portion located between the first portion and the ear hook portion. The first portion has a first extending direction, and the second portion has a second extending direction. The first extending direction and the second extending direction are intersecting. The projections of the first extending direction and the second extending direction onto a first plane of symmetry form a second included angle. In the direction perpendicular to the second extending direction, the first portion is further away from the ear hook portion than the second portion.

[0012] In some embodiments, the second included angle is between 15° and 35°.

[0013] In some embodiments, the housing assembly is provided with a second sound outlet channel, which communicates with the first sound outlet channel. In its natural state, when viewed along the intersection of the first and second symmetry planes, the second sound outlet channel has an upper endpoint near the highest point of the ear hook and a lower endpoint away from the highest point of the ear hook, as well as a third reference plane perpendicular to the reference line segment connecting the upper and lower endpoints. The third reference plane is located between the first and second symmetry planes.

[0014] In some embodiments, the third included angle between the third reference plane and the second symmetry plane is between 5° and 10°.

[0015] In some embodiments, the loudspeaker assembly includes two sound-generating components supported on an annular support, the two sound-generating components being spaced apart along the axial direction of the annular support, each sound-generating component including a diaphragm and a magnetic circuit system disposed on the side of the diaphragm opposite to the other sound-generating component, the diaphragms of the two sound-generating components being disposed adjacent to each other and forming a sound cavity between them.

[0016] The beneficial effects of this application are as follows: Unlike the prior art, in this application, the side of the annular bracket away from the inner side of the sound-emitting part is closer to the highest point of the ear hook that is furthest from the sound-emitting part than the side of the annular bracket that is closer to the inner side. The highest point of the ear hook is the point furthest from the sound-emitting part, and in the wearing state, the highest point of the ear hook is located at the back of the ear or near the upper ear root. The annular bracket is provided with a first sound outlet channel near the inner side. In the wearing state, the inner side is close to the ear, so that the first sound outlet channel on the annular bracket can be tilted more towards the external ear canal in the wearing state. This shortens the sound path of the sound waves output by the speaker assembly to the external ear canal, thereby improving the sound output effect of the headphones and improving the user's listening experience. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the front outline of the user's ear as described in this application;

[0018] Figure 2 This is a three-dimensional structural diagram of an embodiment of the headphones provided in this application from one viewpoint;

[0019] Figure 3 yes Figure 2 A schematic diagram of a three-dimensional structure of the sound-generating part in the illustrated headphone embodiment;

[0020] Figure 4 yes Figure 2 The diagram shows an exploded view of the sound-emitting part in the illustrated headphone embodiment.

[0021] Figure 5 yes Figure 3 A schematic diagram of the cross-sectional structure of the sound-emitting part along section line KK in the illustrated headphone embodiment;

[0022] Figure 6 This is a three-dimensional structural schematic diagram of an embodiment of the headphones provided in this application from another perspective;

[0023] Figure 7 yes Figure 4 The schematic diagram shows a three-dimensional structure of the speaker assembly in the illustrated headphone embodiment;

[0024] Figure 8 yes Figure 2 Another three-dimensional structural diagram of the sound-emitting part in the illustrated headphone embodiment;

[0025] Figure 9 This is a three-dimensional structural schematic diagram of an embodiment of the headphones provided in this application from another perspective. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0027] The reference to "embodiment" in this application means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments.

[0028] The following is an exemplary description of the headphones in the example embodiment.

[0029] Combination Figure 1 The user's ear 100 may include physiological parts such as the external auditory canal 101, concha 102, cymba conchae 103, triangular fossa 104, antihelix 105, scaphoid fossa 106, helix 107, and tragus 108. While the external auditory canal 101 has a certain depth and extends to the tympanic membrane of the ear 100, for ease of description and in conjunction with... Figure 1 Unless otherwise specified, the external auditory canal 101 in this application specifically refers to its entrance (i.e., ear opening) away from the tympanic membrane. Furthermore, physiological structures such as the concha 102, triangular fossa 104, and cymba conchae 103 have a certain volume and depth. The concha 102 is directly connected to the external auditory canal 101, meaning the aforementioned ear opening can be simply considered to be located at the bottom of the concha 102.

[0030] Furthermore, individual differences may exist among different users, resulting in variations in the shape, size, and other dimensions of the earpieces 100. To facilitate description and reduce (or even eliminate) these individual differences, a simulator containing a head and its (left and right) earpieces 100 can be manufactured based on ANSI:S3.36, S3.25 and IEC:60318-7 standards. Examples include the GRAS45BC KEMAR, HEAD Acoustics, B&K 4128 series, or B&K 5128 series, to represent the scenario of most users wearing the headphones 200. Taking the GRAS KEMAR as an example, the simulator for earpieces 100 can be any one of the GRAS 45AC, GRAS45BC, GRAS 45CC, or GRAS 43AG; taking HEAD Acoustics as an example, the simulator for earpieces 100 can be any one of the HMS II.3, HMS II.3LN, or HMSII.3LN HEC. Therefore, in this application, descriptions such as "user wearing headphones 200," "headphones 200 in a wearing state," and "in a wearing state" can refer to the headphones 200 being worn on the ear 100 of the aforementioned simulator. Of course, due to individual differences among users, the headphones 200 worn by different users may differ from their wearing on the ear 100 of the aforementioned simulator. However, such differences should be tolerable. This application considers the differentiated needs of different users' physiological characteristics or usage habits and adopts targeted designs to try to meet the wearing needs of most user groups. Therefore, the technical solution provided by this application only needs to meet the wearing needs of at least one user group.

[0031] In this application, descriptions such as "in a natural state" or "earphone 200 in a natural state" can refer to the earphone 200 being in a state where it is not worn on the user's ear 100 or ear model, and is not subjected to external force and does not undergo significant deformation. The positional relationships such as dimensions, angles, and distances in the embodiments described in this application are all obtained from tests conducted under natural conditions.

[0032] It should be noted that in medicine, anatomy, and other fields, the human body can be defined by three basic planes: the sagittal plane, the coronal plane, and the horizontal plane; and three basic axes: the sagittal axis, the coronal axis, and the vertical axis. The sagittal plane is a section perpendicular to the ground along the anteroposterior direction of the body, dividing the body into left and right parts. The coronal plane is a section perpendicular to the ground along the left-right direction of the body, dividing the body into anterior and posterior parts. The horizontal plane is a section parallel to the ground along the vertical direction of the body, dividing the body into superior and inferior parts. Correspondingly, the sagittal axis is the axis along the anteroposterior direction of the body and perpendicular to the coronal plane; the coronal axis is the axis along the left-right direction of the body and perpendicular to the sagittal plane; and the vertical axis is the axis along the vertical direction of the body and perpendicular to the horizontal plane. Furthermore, the "front side of the ear 100" mentioned in this application is a concept relative to "back side of the ear 100." The former refers to the side of the ear 100 away from the head, while the latter refers to the side of the ear 100 facing the head; both refer to the user's ear 100. Specifically, by observing the ear 100 of the simulator along the direction of the human coronal axis, one can obtain... Figure 1 A schematic diagram of the front outline of the ear 100 shown.

[0033] The Headphone 200 is an audio converter that can receive electrical signals from a media player or receiver and convert them into sound waves that the user can hear.

[0034] like Figure 2 As shown, the earphone 200 includes a sound-producing part 210 and an ear hook part 220. The sound-producing part 210 has a connecting end 211 connected to the ear hook part 220 and a free end 212 away from the connecting end 211. In the wearing state, the ear hook part 220 is wrapped around the upper ear root to the back of the ear 100. The free end 212 is inserted into the concha cavity 102 without blocking the external auditory canal 101.

[0035] Specifically, when worn, the ear hook 220 can be hung between the user's auricle and head, that is, at least part of the ear hook 220 can be located behind the ear 100 so that the earphone 200 is hung on the ear 100 and the sound-emitting part 210 can be located in front of the auricle.

[0036] like Figures 2 to 5 As shown, the sound-emitting part 210 may include a housing assembly 213 and a speaker assembly 214 disposed inside the housing assembly 213 and near the free end 212. The housing assembly 213 includes an inner surface 2131 facing the external auditory canal 101 when worn. Figure 4 and Figure 5As shown, the speaker assembly 214 may include an annular bracket 2141 and a sound outlet cavity 2142. The annular bracket 2141 may be provided with a first sound outlet channel 21411 communicating with the sound outlet cavity 2142. The first sound outlet channel 21411 is located on the side of the annular bracket 2141 near the inner side surface 2131.

[0037] The speaker assembly 214 is a sound playback device that converts electrical signals into sound signals (also known as "sound waves" or "sound signals"). The generated sound waves pass sequentially through the sound outlet cavity 2142 and the first sound outlet channel 21411, and through the housing assembly 213 to the wearer's ear 100. Since the free end 212 of the sound-emitting part 210 extends into the user's concha 102 when worn, and the speaker assembly 214 is positioned close to the free end 212, the sound path of the sound waves generated by the speaker assembly 214 to the user's external auditory canal 101 is shortened, improving the user's listening experience.

[0038] like Figure 6 As shown, in its natural state, the ear loop portion 220 may have a first symmetrical plane arranged along the extending direction of the ear loop portion 220. For example... Figure 5 as well as Figure 6 As shown, the speaker assembly 214 has a second plane of symmetry perpendicular to the axial direction of the annular bracket 2141. The second plane of symmetry passes through the first sound outlet channel 21411. The second plane of symmetry can be inclined relative to the first plane of symmetry. When viewed along the line of intersection of the first and second planes of symmetry, the side of the annular bracket 2141 away from the inner side 2131 is closer to the highest point A of the ear hook portion 220 that is furthest from the sound-emitting portion 210 than the side of the annular bracket 2141 closer to the inner side 2131.

[0039] As an example, Figure 6 The three-dimensional structure of the earphone 200 is shown when viewed along the intersection of the first and second planes of symmetry. The first plane of symmetry of the ear hook 220 can be seen as follows: Figure 6 As shown in the mid-plane LX, the second symmetry plane of the speaker assembly 214, perpendicular to the axial direction of the annular support 2141, can be as follows: Figure 5 as well as Figure 6 As shown in the middle surface LY, the axial direction of the annular support 2141 can be as follows: Figure 5 As shown in LZ, the highest point A in the ear hook 220 that is furthest from the sound-emitting part 210 can be as follows: Figure 6 As shown in the midpoint A.

[0040] Specifically, when worn, the free end 212 of the sound-emitting part 210 is inserted into the concha cavity 102, and the inner surface 2131 faces the external auditory canal 101. At least a portion of the ear hook 220 will conform to the user's head along the direction of the first symmetry plane LX, and the highest point A of the ear hook 220 is located on the back side of the ear 100 or near the upper ear root of the ear 100. Therefore, in the natural state, the side of the ring bracket 2141 away from the inner surface 2131 is closer to the inner surface 2131 than the side of the ring bracket 2141 closer to the inner surface 2131. The side of the ear hook 220 is closer to the highest point A, which makes the side of the ring bracket 2141 away from the external auditory canal 101 higher and the side of the ring bracket 2141 closer to the external auditory canal 101 lower. This allows the first sound outlet channel 21411 on the ring bracket 2141 to be tilted more towards the external auditory canal 101 when worn, thereby shortening the sound path of the sound waves output by the speaker assembly 214 to the external auditory canal 101, thus improving the sound output effect of the headphones 200 and enhancing the user's listening experience.

[0041] In some embodiments, the first included angle between the first symmetry plane LX and the second symmetry plane LY can be between 70° and 80°.

[0042] The first included angle can be measured using 3D scanning modeling. Specifically, the earphone 200 sample is 3D scanned to create a 3D model, which is then used to determine the visualization model, and the angle is measured on that model. Alternatively, the first included angle can be measured using CT scanning. CT (Computed Tomography) is an imaging technique that uses X-ray beams to perform tomographic scanning of the sample and, with the aid of computer processing, generates detailed images of the internal structure. These images are then used to observe the first symmetry plane LX and the second symmetry plane LY, and the first included angle is measured. Of course, other methods can be used to measure the first included angle in other embodiments, which will not be specifically listed here.

[0043] As an example, the first included angle between the first symmetry plane LX and the second symmetry plane LY can be as follows: Figure 6 As shown by angle α. For example, the first included angle α between the first plane of symmetry LX and the second plane of symmetry LY can be 71°, 73°, 74°, 76°, 78°, 79° or 80°, etc.

[0044] Specifically, the first symmetry plane LX is an extended symmetry plane of the ear hook portion 220. In other words, the first symmetry plane LX passes through the extension line of the ear hook portion 220's outline, or the midline of the ear hook portion 220. In the wearing state, at least a portion of the ear hook portion 220 is in contact with the user's head, and the plane is parallel to the first symmetry plane LX. Therefore, the first included angle α between the first symmetry plane LX and the second symmetry plane LY can characterize the degree of tilt of the annular support 2141, that is, it can also characterize the tilt orientation of the first sound outlet channel 21411 on the annular support 2141 relative to the external auditory canal 101 in the wearing state.

[0045] If the first included angle α between the first symmetry plane LX and the second symmetry plane LY is less than 70° or greater than 80°, it means that the first sound outlet channel 21411 on the ring bracket 2141 will be far away from the external auditory canal 101, making it difficult for the first sound outlet channel 21411 to be aligned with the external auditory canal 101, thereby reducing the effect of shortening the sound path and thus reducing the user's listening effect.

[0046] Therefore, setting the first included angle α between the first symmetry plane LX and the second symmetry plane LY to between 70° and 80° allows the ring bracket 2141 to tilt at an appropriate angle when worn, so that the first sound outlet channel 21411 on the ring bracket 2141 can be closer to and towards the external auditory canal 101, thereby further shortening the sound path of the sound wave and improving the user's listening effect.

[0047] In some embodiments, the first included angle α between the first symmetry plane LX and the second symmetry plane LY can be between 75° and 77°. For example, the first included angle α can be 75°, 75.3°, 75.5°, 75.8°, 76.3°, 76.5°, 76.8°, or 77°, etc.

[0048] This configuration allows the first sound outlet channel 21411 on the ring bracket 2141 to be closer to and more oriented toward the external auditory canal 101 when worn, so that the first sound outlet channel 21411 can be aligned with the external auditory canal 101 as much as possible, and obtain the shortest sound path, thereby improving the user's listening experience.

[0049] In some embodiments, such as Figure 7 As shown, the first sound outlet channel 21411 can be arranged in a long strip shape along the circumference of the annular support 2141, and has a third symmetry plane arranged along the length direction of the strip. The third symmetry plane is substantially parallel to the second symmetry plane LY. "Substantially parallel" includes cases where they overlap, are parallel, or have an angle not exceeding 5°. That is, the angle between the third symmetry plane and the second symmetry plane LY does not exceed 5°, and the third symmetry plane approaches or is equal to the second symmetry plane LY.

[0050] This configuration not only allows the first sound outlet channel 21411 to fit the shape of the ring bracket 2141 better, but also ensures that the first sound outlet channel 21411 is aligned with the external auditory canal 101 as much as possible when the ring bracket 2141 is tilted towards the external auditory canal 101. Furthermore, the elongated shape of the first sound outlet channel 21411 can achieve a larger sound outlet area under the configuration of the ring bracket 2141, thereby increasing the sound output of the headphones 200.

[0051] In some embodiments, such as Figure 3 As shown, the inner surface 2131 may have a first region 21311 corresponding to the housing assembly 213 accommodating the speaker assembly 214, and a second region 21312 located between the first region 21311 and the ear hook portion 220. In a first reference direction perpendicular to the first plane of symmetry LX, the first region 21311 may protrude beyond the second region 21312, and the first region 21311 may have a first reference point furthest from the second region 21312. The distance between the first reference point and the first plane of symmetry LX along the first reference direction is less than or equal to 5 mm. For example, the distance between the first reference point and the first plane of symmetry LX along the first reference direction can be 0 mm, 1 mm, 2 mm, 3 mm, 4 mm, or 5 mm, etc.

[0052] Specifically, due to slight differences in the shape of different users' ears 100 and their different wearing habits, the shape of the earphone 200 will vary when worn. For example, some users have relatively thicker ears 100 with more prominent structures, making it difficult for the free end 212 of the sound-emitting part 210 to penetrate into the user's concha 102 when worn. Conversely, some users have relatively thinner ears 100 with flatter structures, so even though the free end 212 of the sound-emitting part 210 can penetrate into the concha 102, there will still be some degree of instability. Therefore, the positional relationship between the first region 21311 and the first symmetry plane LX can be set according to different user needs to provide users with a stable and comfortable wearing experience. Therefore, under natural conditions, the first reference point can be set on both sides of the first symmetry plane LX. The aforementioned distance between the first reference point and the first symmetry plane LX along the first reference direction refers to the absolute value of the distance between the first reference point and the first symmetry plane LX with the first symmetry plane LX as the reference plane.

[0053] For example, in some embodiments, such as Figure 3As shown, in its natural state, the first symmetry plane LX formed by the ear hook portion 220 is closer to the second region 21312 than the first reference point, and the first symmetry plane LX partially overlaps with the sound-emitting portion 210. In the first reference direction, and in the direction from the second region 21312 towards the first region 21311, the position in the first region 21311 furthest from the first symmetry plane LX can be considered the first reference point. The first reference point can be as follows: Figure 3 As shown at point B, the first reference direction can be as follows: Figure 3 As shown in the first reference direction LF, the distance between the first reference point B and the first symmetry plane LX along the first reference direction LF is as follows: Figure 3 As shown in L1, L1 is less than or equal to 5mm. If L1 exceeds 5mm, it will be difficult to adjust the earphone 200 to fit into the user's ear 100 and the free end 212 of the sound-producing part 210 will be difficult to extend into the concha 102, or it will cause greater pressure on the user's ear 100 when worn, thus reducing the user's wearing comfort.

[0054] Alternatively, in other embodiments, such as Figure 8 As shown, in its natural state, the first symmetry plane LX formed by the ear hook portion 220 is away from the inner surface 2131 of the sound-emitting portion 210. The first symmetry plane LX does not overlap with the sound-emitting portion 210. In the first reference direction LF, which is from the second region 21312 toward the first region 21311, the position closest to the first symmetry plane LX in the first region 21311 is the first reference point. The first reference point can be as follows: Figure 8 As shown at point B, the first reference direction can be as follows: Figure 8 As shown in the first reference direction LF, the distance between the first reference point B and the first symmetry plane LX along the first reference direction LF is as follows: Figure 8 As shown in L2, L2 is less than or equal to 5mm. If L2 exceeds 5mm, the distance between the first region 21311 and the first symmetry plane LX will be too large. In the wearing state, the first region 21311 will be difficult to extend into the concha cavity 102, increasing the distance between the first sound outlet channel 21411 and the external auditory canal 101, thereby reducing the user's listening effect and making the earphone 200 unstable to wear, thus reducing the user's wearing experience.

[0055] Therefore, setting the distance between the first reference point B along the first reference direction LF and the first symmetry plane LX to less than or equal to 5mm not only makes it easier for the user to adjust the ear hook 220 and the sound-emitting part 210 to stably wear the earphone 200 on the ear hook 220, but also makes it easier for the first region 21311 of the sound-emitting part 210 to extend into the concha cavity 102, so that the speaker assembly 214 and the first sound outlet channel 21411 are closer to the external auditory canal 101, thereby improving the user's listening effect.

[0056] In some embodiments, on the first reference direction LF, the second region 21312 or the ear hook portion 220 has a second reference point closest to the first reference point B. The first reference point B forms a first projection point on the first symmetry plane LX along the first reference direction LF, and the second reference point forms a second projection point on the first symmetry plane LX along the first reference direction LF. The distance between the first projection point and the second projection point is between 23-25 ​​mm.

[0057] As an example, the second reference point can be as follows: Figure 8 As shown at midpoint C, the first reference point B forms a first projection point on the first symmetry plane LX along the first reference direction LF, as follows: Figure 8 As shown at midpoint b, the second reference point C forms a second projection point on the first symmetry plane LX along the first reference direction LF, as shown. Figure 8 As shown by midpoint c, the distance between the first projection point b and the second projection point c can be as follows: Figure 8 As shown in the figure, the intermediate distance L3 is between 23mm and 25mm. For example, the interval L3 between the first projection point b and the second projection point c can be 23mm, 23.5mm, 24mm, 24.5mm or 25mm, etc.

[0058] The second reference point C can be located in the second region 21312 or on the ear hook 220. Since the first region 21311 of the sound-emitting part 210 protrudes relative to the second region 21312 along the first reference direction LF, the side of the sound-emitting part 210 facing the ear 100 is curved when worn, and at least a portion of the first region 21311 can extend into the concha 102. Because the ear hook 220 rests against the upper ear root, the second reference point C will abut against the vicinity of the upper ear root or at the midpoint between the helix 107 and the tragus 108. Therefore, the distance L3 between the first projection point b and the second projection point c will affect the degree of bending deformation of the sound-emitting part 210, thereby affecting the user's wearing comfort.

[0059] If the distance between the first projection point b and the second projection point c is less than 23mm, it means that the size of the sound-emitting part 210 in the distance direction between the free end 212 and the connecting end 211 is too small. This will make it difficult for the inner side 2131 of the sound-emitting part 210 facing the ear 100 to fit against the ear 100 when it is worn, and the free end 212 of the sound-emitting part 210 will be difficult to extend into the concha cavity 102. If the distance L3 between the first projection point b and the second projection point c is greater than 25mm, it indicates that the size of the sound-emitting part 210 in the direction of the interval between the free end 212 and the connecting end 211 is too large. This will make the contact area between the inner side surface 2131 of the sound-emitting part 210 and the front side of the ear 100 too small when worn, resulting in unstable wearing. For example, when the free end 212 extends into the concha cavity 102, the second area 21312 of the sound-emitting part 210 or the side of the ear hook 220 facing the user's ear 100 is difficult to fit against the user's ear 100 or face to form support, causing the headphones 200 to be worn unstable.

[0060] Therefore, setting the interval between the first projection point b and the second projection point c to between 23mm and 25mm allows the sound-emitting part 210 to fit better against the front of the ear 100 or the user's face when worn, and the free end 212 to be more easily inserted into the concha 102, increasing the contact area between the sound-emitting part 210 and the front of the ear 100 or the user's face, thereby making the wearing of the headphones 200 more stable and improving the user's wearing comfort.

[0061] In some embodiments, such as Figure 9 As shown, the housing assembly 213 may have a first portion 2132 for accommodating the speaker assembly 214 and a second portion 2133 located between the first portion 2132 and the ear hook portion 220. The first portion 2132 may have a first extending direction, and the second portion 2133 may have a second extending direction. The first and second extending directions are intersecting and their projections onto a first plane of symmetry LX form a second included angle. In the direction perpendicular to the second extending direction, the first portion 2132 may be further away from the ear hook portion 220 than the second portion 2133.

[0062] The second extension direction refers to the length direction of the second part 2133. The first extension direction refers to the extension direction of the first part 2132 extending away from the connection point with the second part 2133.

[0063] As an example, when viewed along the direction perpendicular to the first plane of symmetry LX, the first extension direction can be as follows: Figure 9 As shown in the middle direction LT, the second extension direction can be as follows Figure 9As shown in the middle direction LS, the second included angle formed by the first extending direction LT and the second extending direction LS can be as follows: Figure 9 As shown in the middle β angle.

[0064] Specifically, the free end 212 of the sound-emitting part 210 is located in the first part 2132, so that at least a portion of the first part 2132 can be inserted into the concha cavity 102 when worn. The first extension direction LT and the second extension direction LS are set to form a certain angle, and the first part 2132 is further away from the ear hook part 220 than the second part 2133. This allows the first part 2132, on which the speaker assembly 214 is mounted, to be tilted more towards the external auditory canal 101 relative to the second part 2133, making the first sound output channel 21411 closer to the external auditory canal 101 when worn, thereby improving the user's listening experience.

[0065] In some embodiments, the second included angle β can be between 15° and 35°. For example, the second included angle β can be a value such as 15°, 16°, 17°, 18°, 20°, 23°, 25°, 28°, 30°, 33°, or 35°.

[0066] The second included angle β represents the degree of tilt of the first part 2132 relative to the second part 2133. If the second included angle β is less than 15°, it indicates that the tilt of the first part 2132 relative to the second part 2133 is small, and the first extension direction LT of the first part 2132 and the second extension direction LS of the second part 2133 are nearly the same. In this case, when worn, the first part 2132 is unlikely to achieve the effect of approaching the external auditory canal 101. If the second included angle β is greater than 35°, it indicates that the tilt of the first part 2132 relative to the second part 2133 is large. In this case, when worn, the first part 2132 will deviate from the external auditory canal 101 due to excessive tilting, thus moving away from the external auditory canal 101.

[0067] Therefore, by setting the second included angle β between 15° and 35°, the first part 2132 on which the speaker assembly 214 is installed can be closer to the external auditory canal 101 when worn, without deviating excessively from the external auditory canal 101, which is more conducive to improving the user's listening experience.

[0068] In some embodiments, such as Figure 6As shown, a second sound outlet channel 2134 may be provided on the housing assembly 213, and the second sound outlet channel 2134 may communicate with the first sound outlet channel 21411. In its natural state, when viewed along the intersection of the first symmetry plane LX and the second symmetry plane LY, the second sound outlet channel 2134 has an upper endpoint near the highest point A of the ear hook portion 220 and a lower endpoint away from the highest point A of the ear hook portion 220, as well as a third reference plane perpendicular to the reference line segment connecting the upper endpoint and the lower endpoint, the third reference plane being located between the first symmetry plane LX and the second symmetry plane LY.

[0069] As an example, observing the intersection of the first symmetry plane LX and the second symmetry plane LY, the upper endpoint of the second sound outlet channel 2134 near the highest point A of the ear hook portion 220 is as follows: Figure 6 As shown at midpoint D, the lower end point of the second sound channel 2134, away from the highest point A of the ear hook 220, is as follows: Figure 6 As shown at midpoint E, the third reference plane can be as follows: Figure 6 As shown in LH.

[0070] Specifically, the second symmetry plane LY is the symmetry plane of the annular support 2141, and the second symmetry plane LY passes through the first sound outlet channel 21411, while the sound outlet direction of the first sound outlet channel 21411 is the direction in which the second symmetry plane LY is located. The third reference plane LH is perpendicular to the reference line segment formed by connecting the upper and lower endpoints of the second sound outlet channel 2134, indicating that the sound outlet direction of the second sound outlet channel 2134 is basically consistent with the direction in which the third reference plane LH is located. Setting the third reference plane LH between the first symmetry plane LX and the second symmetry plane LY means that the second sound outlet channel 2134 can be closer to the first symmetry plane LX relative to the first sound outlet channel 21411, thus allowing the sound outlet direction of the sound-emitting part 210 to be adjusted during wearing.

[0071] When worn, the sound waves generated by the speaker assembly 214 can be transmitted to the user's external ear canal 101 through the sound outlet cavity 2142, the first sound outlet channel 21411 and the second sound outlet channel 2134 in sequence. By setting the second sound outlet channel 2134 to be closer to the first symmetry plane LX than the first sound outlet channel 21411, the second sound outlet channel 2134 can be closer to the external ear canal 101 than the first sound outlet channel 21411, thereby improving the user's listening experience.

[0072] In some embodiments, the third included angle between the third reference plane LH and the second symmetry plane LY can be between 5° and 10°.

[0073] As an example, the third included angle between the third reference plane LH and the second symmetry plane LY can be as follows: Figure 6The included angle θ is shown below. For example, the third included angle θ can be a value such as 5°, 6°, 7°, 8°, 9°, or 10°.

[0074] The third angle θ between the third reference plane LH and the second symmetry plane LY affects the sound output direction of the second sound output channel 2134. If the third angle θ between the third reference plane LH and the second symmetry plane LY is less than 5°, it means that the third reference plane LH and the second symmetry plane LY are nearly identical, and the effect of adjusting the sound output direction of the second sound output channel 2134 on the sound output direction of the sound-emitting part 210 in the wearing state is not significant. If the third angle θ between the third reference plane LH and the second symmetry plane LY is greater than 10°, it will cause the sound output direction of the second sound output channel 2134 to tilt excessively and deviate from the external auditory canal 101, thus moving away from the external auditory canal 101.

[0075] Therefore, setting the third angle θ between the third reference plane LH and the second symmetry plane LY to between 5° and 10° allows the second sound outlet channel 2134 to be closer to the external auditory canal 101 without deviating excessively from the external auditory canal 101, which is more conducive to improving the user's listening experience.

[0076] In some embodiments, the third included angle θ between the third reference plane LH and the second symmetry plane LY can be set in combination with the first included angle α. The first included angle α and the third included angle θ cooperate with each other to compensate for the wearing angle, so as to ensure the user's wearing experience while making the sound-emitting part 210 closer to the external auditory canal 101.

[0077] In some embodiments, such as Figure 5 As shown, the loudspeaker assembly 214 may include two sound-generating assemblies 2143 supported on an annular bracket 2141. The two sound-generating assemblies 2143 are arranged at an axial distance LZ along the annular bracket 2141. Each sound-generating assembly 2143 may include a diaphragm 21431 and a magnetic circuit system 21432 disposed on the side of the diaphragm 21431 facing away from the other sound-generating assembly 2143. The diaphragms 21431 of the two sound-generating assemblies 2143 are arranged adjacent to each other, forming a sound cavity 2142 between them.

[0078] Each sound-generating component 2143's magnetic circuit system 21432 can generate corresponding magnetic field changes based on the strength and frequency of the electrical signal when current passes through it, thereby driving the corresponding diaphragm 21431 to vibrate and generate sound waves. The sound waves generated by the diaphragm 21431 can propagate out of the housing assembly 213 through the sound outlet cavity 2142, the first sound outlet channel 21411, and the second sound outlet channel 2134 in sequence. The diaphragms of the two sound-generating components 2143 are arranged opposite each other to form the sound outlet cavity 2142, which can achieve a larger volume of sound output within a limited housing space, ensuring the user's listening experience.

[0079] In summary, in this application, the side of the annular bracket 2141 in the sound-emitting part 210 that is furthest from the inner side 2131 is closer to the highest point A of the ear hook 220 than the side of the annular bracket 2141 that is closer to the inner side 2131. The highest point A of the ear hook 220 is the point furthest from the sound-emitting part 210, and in the wearing state, the highest point A of the ear hook 220 is located behind the ear 100 or near the upper ear root of the ear 100. The annular bracket 2141 is provided with a first sound outlet channel 21411 near the inner side 2131. In the wearing state, the inner side 2131 is close to and fits the ear 100, so that the first sound outlet channel 21411 on the annular bracket 2141 can be tilted more towards the external auditory canal 101 in the wearing state, so that the sound wave output by the speaker assembly 214 is shortened to the external auditory canal 101, thereby improving the sound output effect of the headphones 200 and improving the user's listening experience.

[0080] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. An earphone, characterized in that, The earphone includes a sound-producing part and an ear hook part. The sound-producing part has a connecting end connected to the ear hook part and a free end away from the connecting end. In the wearing state, the ear hook part is wrapped around the upper ear root to the back of the ear. The free end is inserted into the concha cavity without blocking the external auditory canal. The sound-producing part includes a housing assembly and a speaker assembly disposed inside the housing assembly and close to the free end. The housing assembly includes an inner side facing the external auditory canal in the wearing state. The loudspeaker assembly includes an annular bracket and a sound outlet cavity. The annular bracket is provided with a first sound outlet channel communicating with the sound outlet cavity. The first sound outlet channel is located on the side of the annular bracket closer to the inner side. In its natural state, the ear hook portion has a first symmetry plane arranged along the extension direction of the ear hook portion, and the speaker assembly has a second symmetry plane perpendicular to the axial direction of the annular bracket. The second symmetry plane passes through the first sound outlet channel and is inclined relative to the first symmetry plane. When viewed along the intersection of the first symmetry plane and the second symmetry plane, the side of the annular bracket away from the inner side is closer to the highest point of the ear hook portion that is furthest from the sound-emitting part than the side of the annular bracket that is closer to the inner side.

2. The earphone according to claim 1, characterized in that, The first included angle between the first plane of symmetry and the second plane of symmetry is between 70° and 80°.

3. The earphone according to claim 2, characterized in that, The first included angle between the first plane of symmetry and the second plane of symmetry is between 75° and 77°.

4. The earphone according to claim 3, characterized in that, The first sound outlet channel is elongated along the circumference of the annular bracket and has a third symmetry plane along the length of the elongated shape, the third symmetry plane being substantially parallel to the second symmetry plane.

5. The headphones according to any one of claims 1-4, characterized in that, The inner side has a first region corresponding to the housing assembly that accommodates the speaker assembly and a second region located between the first region and the ear hook. In a first reference direction perpendicular to the first plane of symmetry, the first region protrudes from the second region, and the first region has a first reference point furthest from the second region. In its natural state, the distance between the first reference point and the first plane of symmetry along the first reference direction is less than or equal to 5 mm.

6. The earphone according to claim 5, characterized in that, In the first reference direction, the second region or the ear hook portion has a second reference point that is closest to the first reference point. The first reference point forms a first projection point on the first symmetry plane along the first reference direction, and the second reference point forms a second projection point on the first symmetry plane along the first reference direction. The distance between the first projection point and the second projection point is between 23mm and 25mm.

7. The headphones according to any one of claims 1-4, characterized in that, The housing assembly has a first portion for accommodating the speaker assembly and a second portion located between the first portion and the ear hook portion. The first portion has a first extending direction, and the second portion has a second extending direction. The first extending direction and the second extending direction are intersecting. The projections of the first extending direction and the second extending direction onto the first plane of symmetry form a second angle. In the direction perpendicular to the second extending direction, the first portion is further away from the ear hook portion than the second portion.

8. The earphone according to claim 7, characterized in that, The second included angle is between 15° and 35°.

9. The headphones according to any one of claims 1-4, characterized in that, The housing assembly is provided with a second sound outlet channel, which is connected to the first sound outlet channel. In its natural state, when viewed along the intersection of the first and second symmetry planes, the second sound outlet channel has an upper endpoint close to the highest point of the ear hook and a lower endpoint far from the highest point of the ear hook, as well as a third reference plane perpendicular to the reference line segment connecting the upper endpoint and the lower endpoint. The third reference plane is located between the first and second symmetry planes.

10. The earphone according to claim 9, characterized in that, The third included angle between the third reference plane and the second symmetry plane is between 5° and 10°.

11. The earphone according to claim 1, characterized in that, The loudspeaker assembly includes two sound-generating components supported on the annular bracket. The two sound-generating components are spaced apart along the axial direction of the annular bracket. Each sound-generating component includes a diaphragm and a magnetic circuit system disposed on the side of the diaphragm facing away from the other sound-generating component. The diaphragms of the two sound-generating components are arranged adjacent to each other and form a sound cavity between them.

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