earphone

Abstract

The earphone comprises a sound generating part and an ear hanging part, the sound generating part has a connecting end connected with the ear hanging part and a free end away from the connecting end, the sound generating part comprises a shell assembly, a partition plate, a loudspeaker assembly and a battery, the shell assembly forms a containing cavity, the partition plate is arranged in the containing cavity and divides the containing cavity into a first sub-containing area and a second sub-containing area, the first sub-containing area is closer to the free end than the second sub-containing area, the loudspeaker assembly is arranged in the first sub-containing area, the battery is arranged in the second sub-containing area, the shell assembly is provided with at least one pressure relief hole, the loudspeaker assembly cooperates with the shell assembly and the partition plate to form a pressure relief cavity communicating with the at least one pressure relief hole, and the pressure relief cavity is arranged to be isolated from the remaining cavities of the containing cavity. In this way, the moisture and impurities such as metal particles in the external environment cannot enter the remaining cavities outside the pressure relief cavity, and the damage or corrosion of the battery and other electronic elements by the impurities is reduced.

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 the speaker in headphones drives the diaphragm to vibrate and generate sound waves, it is usually necessary to set a pressure relief hole on the headphone shell to maintain the air pressure balance in the headphone. However, external impurities such as moisture, metal particles, and dust can easily enter the headphone through the pressure relief hole, damaging other components of the headphone. Utility Model Content

[0004] To solve the above-mentioned technical problems, one technical solution adopted in this application is to provide an earphone that prevents external moisture and metal particles and other impurities from entering the cavity outside the pressure relief chamber, thereby reducing the possibility of impurities damaging or corroding the battery and other electronic components.

[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 ear root to the back of the ear. The free end is inserted into the concha cavity of the ear without blocking the external auditory canal. The sound-generating part includes a housing assembly, a partition, a speaker assembly, and a battery. The housing assembly forms a receiving cavity. The partition is disposed in the receiving cavity and divides the receiving cavity into a first sub-receiving area and a second sub-receiving area. The first sub-receiving area is closer to the free end than the second sub-receiving area. The speaker assembly is disposed in the first sub-receiving area, and the battery is disposed in the second sub-receiving area. The housing assembly is provided with at least one pressure relief hole. The speaker assembly, housing assembly, and partition cooperate to form a pressure relief cavity communicating with at least one pressure relief hole. The pressure relief cavity is configured to be isolated from the other cavities of the receiving cavity.

[0006] In some embodiments, the loudspeaker assembly includes an inner enclosure and a sound-emitting assembly. The inner enclosure includes an enclosure portion and a plate portion connected to each other. The enclosure portion is mounted on the sound-emitting assembly, and the plate portion is connected to a partition. The inner enclosure, the housing assembly, the partition, and the sound-emitting assembly constitute a pressure relief chamber.

[0007] In some embodiments, a first assembly gap is formed between the inner cover and the housing assembly, and the first assembly gap is filled with a sealing material.

[0008] In some embodiments, the partition has a first step portion, and the panel portion is mounted on the first step portion.

[0009] In some embodiments, a second assembly gap is formed between the plate portion and the first step portion, and the second assembly gap is filled with sealing material.

[0010] In some embodiments, the housing assembly includes a first housing and a second housing, which are assembled to form a receiving cavity. In the wearing state, the first housing is closer to the external auditory canal than the second housing. The first housing includes a first sidewall and a second sidewall arranged side by side and spaced apart from each other, and a third sidewall connecting the first sidewall and the second sidewall. At least one pressure relief hole is provided on the first sidewall and / or the second sidewall. In the wearing state, the first sidewall faces the top of the user's head, and the second sidewall faces away from the top of the user's head.

[0011] In some embodiments, a partition is disposed within a first housing and connects a first sidewall, a second sidewall, and a third sidewall. The partition includes a connecting portion and an extension portion that are interconnected. The extension portion extends relative to the connecting portion toward a side away from the sound-generating component and is connected to the first sidewall and / or the second sidewall. At least one pressure relief hole is disposed near the extension portion.

[0012] In some embodiments, the extension forms a clearance position with the corresponding connected first sidewall and / or second sidewall to avoid at least one pressure relief hole on the first sidewall or the second sidewall.

[0013] In some embodiments, there are two extensions and at least two pressure relief holes. One end of each extension is connected to the first sidewall and the second sidewall, and the other end of each extension is connected to the connecting part. The two pressure relief holes are distributed on the first sidewall and the second sidewall, and correspond to two clearance positions formed by the extensions and the first and second sidewalls, respectively.

[0014] In some embodiments, a sound outlet is provided on the third sidewall for transmitting sound emitted by the speaker assembly out of the housing assembly and into the external auditory canal. The third sidewall forms an arcuate protrusion area facing the ear canal at a position corresponding to the first sub-accommodating area, and the sound outlet is disposed on the arcuate protrusion area.

[0015] In some embodiments, the housing assembly includes a first housing and a third housing, a partition is disposed within the first housing and integrally formed with the first housing, and the partition, the first housing, the third housing, and the speaker assembly constitute a pressure relief chamber.

[0016] In some embodiments, the first housing includes a first sidewall, a second sidewall, a third sidewall, and a fourth sidewall connected to each other. The first sidewall and the second sidewall are arranged side by side and spaced apart from each other. The third sidewall and the fourth sidewall are spaced apart along the thickness direction of the housing assembly. In the wearing state, the third sidewall is closer to the external auditory canal than the fourth sidewall. At least one pressure relief hole is provided on the first sidewall and / or the second sidewall. A partition connects the third sidewall and the fourth sidewall. The thickness direction is the direction in which the housing assembly is closer to or farther from the ear in the wearing state.

[0017] In some embodiments, the third housing, together with the first housing and the partition, forms a first sub-accommodating area, and the second housing forms an arc-shaped protrusion area facing the ear canal, on which a sound outlet is provided.

[0018] In some embodiments, the headphones further include a battery holder and a main control circuit board. The battery holder is disposed within the accommodating cavity and is used to cooperate with the housing assembly to limit the battery position. The main control circuit board is supported on the battery holder.

[0019] In some embodiments, the partition has a first step and a second step, the first step and the second step having a height difference along the thickness direction of the housing assembly, the side of the battery holder near the speaker assembly is mounted on the second step of the partition and forms a third assembly gap with the partition, the third assembly gap being filled with sealing material, the thickness direction being the direction in which the housing assembly is close to or away from the ear when worn.

[0020] In some embodiments, a connecting hole is provided on the partition, the connecting hole connecting the first sub-accommodating area and the second sub-accommodating area, the earphone includes a flexible circuit board, the flexible circuit board passes through the connecting hole and is electrically connected to the main control circuit board and the speaker assembly, and the connecting hole is filled with sealing material.

[0021] In some embodiments, the battery holder includes a main body, which includes a first frame, a second frame, a third frame, and a fourth frame. The first and second frames are arranged side by side and spaced apart from each other, and the third and fourth frames are arranged side by side and spaced apart from each other. The first, second, third, and fourth frames enclose a limiting area, in which the battery is embedded. The main body is limited and engaged with the housing assembly.

[0022] In some embodiments, the battery is cylindrical, with its axial direction aligned with the spacing direction of the free end and the connecting end, and the dimension of the battery along the axial direction being greater than its radial dimension. The third and fourth borders are spaced apart along the axial direction.

[0023] In some embodiments, the battery bracket further includes a plurality of support columns disposed on the side of the main body near the main control circuit board, the main control circuit board is supported on the plurality of support columns, and the projection of the main control circuit board along the normal direction of the main surface of the main control circuit board partially overlaps with the battery and the speaker assembly, respectively.

[0024] In some embodiments, the loudspeaker assembly includes an annular frame and two sound-generating components, which are spaced apart along the axial direction of the annular frame. 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 outlet cavity between them. The annular frame is provided with a sound outlet channel and a pressure relief channel. The pressure relief channel connects the pressure relief cavity to the side of the diaphragm of each sound-generating component facing away from the other sound-generating component. The housing assembly is provided with a sound outlet hole. The sound outlet channel connects the sound outlet hole and the sound outlet cavity. The annular frame abuts against the housing assembly at the periphery of the sound outlet hole and is circumferentially sealed along the sound outlet hole to isolate the sound outlet cavity and the pressure relief cavity from each other.

[0025] In some embodiments, the magnetic circuit systems of the two sound-generating components protrude from the annular frame along the axial direction of the annular frame. Along the axial direction of the annular frame, the annular frame is mounted on the protruding portions of the magnetic circuit systems of the two sound-generating components and is sealed to the outer peripheral surfaces of the magnetic circuit systems of the two sound-generating components.

[0026] The beneficial effects of this application are as follows: Unlike the prior art, this application separates the battery and the speaker by setting a partition in the housing assembly, and sets the speaker assembly to cooperate with the housing assembly and the partition to form a pressure relief chamber. This can isolate the pressure relief chamber from the other cavities of the receiving cavity, so that external moisture and metal particles and other impurities will not enter the other cavities outside the pressure relief chamber, thereby reducing the possibility of impurities damaging or corroding the battery and other electronic components. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the front outline of the user's ear as described in this application;

[0028] Figure 2 This is a three-dimensional structural diagram of an embodiment of the headphones provided in this application from one viewpoint;

[0029] Figure 3 yes Figure 2 A schematic diagram of the three-dimensional structure of the sound-emitting part in the illustrated headphone embodiment;

[0030] Figure 4 yes Figure 3 The diagram shows an exploded view of the sound-emitting part in the illustrated headphone embodiment.

[0031] Figure 5 yes Figure 2A schematic diagram of the cross-sectional structure of the sound-emitting part along section line AA in the illustrated headphone embodiment;

[0032] Figure 6 yes Figure 5 A proportionally enlarged schematic diagram of a portion O in the illustrated headphone embodiment;

[0033] Figure 7 yes Figure 3 A schematic diagram of the cross-sectional structure of the sound-emitting part along section line BB in the illustrated headphone embodiment;

[0034] Figure 8 This is a three-dimensional structural diagram of another embodiment of the headphones provided in this application from one viewpoint;

[0035] Figure 9 yes Figure 8 A three-dimensional structural schematic diagram of the earphone embodiment shown from another perspective;

[0036] Figure 10 yes Figure 8 The diagram shows an exploded view of the sound-emitting part in the illustrated headphone embodiment.

[0037] Figure 11 yes Figure 8 A three-dimensional structural diagram of the first housing in the earphone embodiment shown in one view.

[0038] Figure 12 yes Figure 8 A three-dimensional structural diagram of the first housing in the illustrated headphone embodiment from another perspective;

[0039] Figure 13 yes Figure 8 A three-dimensional structural diagram of the first housing in the illustrated headphone embodiment from another perspective;

[0040] Figure 14 yes Figure 3 The illustrated headphone embodiment shows a schematic diagram of the cross-sectional structure of the sound-emitting part along section line CC. Detailed Implementation

[0041] 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.

[0042] 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.

[0043] The following is an exemplary description of the headphones in the example embodiment.

[0044] 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.

[0045] Furthermore, individual differences may exist among different users, resulting in variations in the shape, size, and other dimensions of the earpiece 100. To facilitate description and reduce (or even eliminate) these individual differences, a simulator containing the 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 earpiece 100 simulator can be any one of the GRAS 45AC, GRAS45BC, GRAS 45CC, or GRAS 43AG; taking HEAD Acoustics as an example, the earpiece 100 simulator 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 actual 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, employing targeted design to meet the wearing needs of most user groups as much as possible. Therefore, the technical solution provided by this application only needs to meet the wearing needs of at least one user group.

[0046] 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.

[0047] 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.

[0048] 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 ear root of the ear 100 to the back of the ear 100, and the free end 212 is inserted into the concha cavity 102 of the ear 100 without blocking the external auditory canal 101.

[0049] Specifically, in the wearing state, 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 on the back side of the ear 100, so that the earphone 200 is hung on the ear 100, and the sound-emitting part 210 can be located on the front side of the auricle. And the free end 212 of the sound-emitting part 210 can be inserted into the concha cavity 102 of the ear 100.

[0050] The sound-emitting part 210 can be a sound playback device. The sound-emitting part 210 can be used to convert electrical signals into sound signals (also known as "sound waves" or "sound signals") and transmit them to the wearer's ear 100.

[0051] like Figures 2 to 5 As shown, the sound-emitting part 210 may include a housing assembly 213, a partition 214, a speaker assembly 215, and a battery 216. The housing assembly 213 forms a receiving cavity 201. The partition 214 may be disposed within the receiving cavity 201, dividing the receiving cavity 201 into a first sub-receiving area 2011 and a second sub-receiving area 2012. The first sub-receiving area 2011 is closer to the free end 212 than the second sub-receiving area 2012. The speaker assembly 215 may be disposed in the first sub-receiving area 2011, and the battery 216 may be disposed in the second sub-receiving area 2012.

[0052] Because the free end 212 of the sound-emitting part 210 is inserted into the concha 102 of the ear 100 without blocking the external auditory canal 101 when worn, the speaker assembly 215 located in the first sub-accommodation area 2011 can be closer to the external auditory canal 101, thus shortening the sound path and increasing the listening volume of the user wearing the headphones 200. Furthermore, placing the battery 216 in the second sub-accommodation area 2012 of the sound-emitting part 210, rather than in the ear hook 220, reduces the size of the ear hook 220, making it lighter and reducing the pressure on the auricle behind the ear 100 when worn.

[0053] like Figures 2 to 5 As shown, the housing assembly 213 may be provided with at least one pressure relief hole 2131, and the speaker assembly 215 cooperates with the housing assembly 213 and the partition 214 to form a pressure relief cavity 2132 communicating with at least one pressure relief hole 2131. The pressure relief cavity 2132 is configured to be isolated from the other cavities of the receiving cavity 201.

[0054] To achieve air pressure balance during sound production in the speaker assembly 215, at least one pressure relief hole 2131 needs to be provided on the housing assembly 213 to communicate with the outside and release air pressure. Therefore, external moisture and impurities such as metal particles can enter the housing assembly 213 through the pressure relief hole 2131. The partition 214, in conjunction with the speaker assembly 215 and the housing assembly 213, forms a pressure relief cavity 2132 that communicates with at least one pressure relief hole 2131. This minimizes the connection between the pressure relief hole 2131 and the other cavities of the receiving cavity 201, preventing external moisture, metal particles, dust, and other impurities from entering cavities other than the pressure relief cavity 2132, such as the cavity containing the battery 216. This design reduces the possibility of impurities damaging or corroding the battery and other electronic components, improving the structural integrity and lifespan of the earphone 200.

[0055] In some embodiments, such as Figures 4 to 6As shown, the speaker assembly 215 may include an inner enclosure 2151 and a sound-emitting assembly 2152. The inner enclosure 2151 may include an enclosure portion 21511 and a plate portion 21512 connected to each other. The enclosure portion 21511 may be mounted on the sound-emitting assembly 2152, and the plate portion 21512 is connected to the partition 214. The inner enclosure 2151, the housing assembly 213, the partition 214, and the sound-emitting assembly 2152 may form a pressure relief chamber 2132.

[0056] The cover portion 21511 can be adapted to the shape of the sound-generating component 2152 to overlap it. For example, when the sound-generating component 2152 is approximately cylindrical, the cover portion 21511 can be approximately arc-shaped; or, for example, when the cross-section of the sound-generating component 2152 is approximately racetrack-shaped or rectangular, the cover portion can be approximately cuboid. The plate portion 21512 is connected to the partition 214, and the inner cover portion 2151 and the partition 214 cooperate in the receiving cavity 201 to separate the first sub-receiving area 2011 and the second sub-receiving area 2012.

[0057] During the installation of the internal components of the sound-generating section 210, the sound-generating assembly 2152 and the battery 216 can be placed in the first sub-accommodating area 2011 and the second sub-accommodating area 2012 respectively. Then, the inner cover 2151 is attached to the sound-generating assembly 2152 and the partition 214 to form the pressure relief chamber 2132. This allows for more precise positioning and assembly of the internal components of the sound-generating section 210, minimizing the adverse effects of manufacturing errors, and also facilitates the isolation of the pressure relief chamber 2132 from the other cavities in the accommodating cavity 201.

[0058] In some embodiments, such as Figure 5 As shown, a first assembly gap 202 can be formed between the inner cover 2151 and the housing assembly 213, and the first assembly gap 202 is filled with a sealing material. The sealing material can be silicone, a curing adhesive, or other similar materials.

[0059] Specifically, during the assembly of the sound-generating part 210, after placing the sound-generating component 2152 in the first sub-accommodating area 2011, a sealing material can be applied to the housing component 213 at the connection point with the inner cover 2151, and then the inner cover 2151 can be installed so that the sealing material can fill the first assembly gap 202 between the inner cover 2151 and the housing component 213, thereby achieving a seal between the inner cover 2151 and the housing component 213.

[0060] This design improves the isolation between the pressure relief chamber 2132 and the remaining cavities of the receiving cavity 201, preventing external moisture and metal particles from entering the remaining cavities of the receiving cavity 201 through the first assembly gap 202 between the inner cover 2151 and the housing assembly 213 and damaging electronic components. For example, it prevents the battery 216 and other electronic components in the second sub-receiving area 2012 from being corroded or damaged.

[0061] In some embodiments, such as Figure 6 As shown, the partition 214 may have a first step portion 2141, and the plate portion 21512 may be mounted on the first step portion 2141. By providing a step structure on the partition 214, the plate portion 21512 of the inner cover 2151 can be positioned more accurately during installation, and the inner cover 2151 is less likely to slide or shift during sealing.

[0062] In some embodiments, a second assembly gap 203 may be formed between the plate portion 21512 and the first step portion 2141, and the second assembly gap 203 may be filled with sealing material. This arrangement can further improve the isolation effect between the pressure relief chamber 2132 and the remaining cavities of the receiving chamber 201.

[0063] In some embodiments, such as Figure 4 as well as Figure 5 As shown, the housing assembly 213 may include a first housing 2133 and a second housing 2134, which are assembled to form a receiving cavity 201. In the wearing state, the first housing 2133 is closer to the external auditory canal 101 than the second housing 2134. The first housing 2133 includes a first sidewall 21331 and a second sidewall 21332 arranged side by side and spaced apart from each other, and a third sidewall 21333 connecting the first sidewall 21331 and the second sidewall 21332. At least one pressure relief hole 2131 is provided on the first sidewall 21331 and / or the second sidewall 21332.

[0064] When worn, the first shell 2133 is closer to the external auditory canal 101 than the second shell 2134, the first sidewall 21331 faces the top of the user's head, and the second sidewall 21332 faces away from the top of the user's head. Specifically, the spacing between the first sidewall 21331 and the second sidewall 21332 can be parallel to the vertical axis of the human body or intersect to form an acute angle.

[0065] At least one pressure relief hole 2131 is provided on the first side wall 21331 and / or the second side wall 21332. On the one hand, since the first side wall 21331 and the second side wall 21332 are not easily blocked by the ear 100, the pressure relief effect of the pressure relief hole 2131 can be guaranteed. On the other hand, the orientation of at least one pressure relief hole 2131 can be towards and / or away from the top of the user's head, making it difficult for the leaked sound to be transmitted to the ears of other people, thus ensuring the privacy of the user's listening to a certain extent.

[0066] For example, in some embodiments, such as Figure 7 As shown, there can be two pressure relief holes 2131, which are respectively disposed on the first sidewall 21331 and the second sidewall 21332. Alternatively, in other embodiments, there can be one pressure relief hole 2131, which can be disposed on either the first sidewall 21331 or the second sidewall 21332. Or, there can be three, four, or five pressure relief holes, which can be all disposed on either the first sidewall 21331 or the second sidewall 21332, or evenly distributed on either the first sidewall 21331 or the second sidewall 21332.

[0067] In some embodiments, such as Figure 4 As shown, the partition 214 can be disposed within the first housing 2133 and connect the first sidewall 21331, the second sidewall 21332, and the third sidewall 21333. Figure 7 As shown, the partition 214 may include a connecting portion 2142 and an extension portion 2143 connected to each other. The extension portion 2143 may extend relative to the connecting portion 2142 away from the sound-generating assembly 2152 and be connected to the first sidewall 21331 and / or the second sidewall 21332, and at least one pressure relief hole 2131 is disposed near the extension portion 2143.

[0068] In other words, the connecting part 2142 is closer to the sound-generating component 2152, and the extension part 2143 extends from the connection point with the connecting part 2142 to the side away from the sound-generating component 2152, so that the partition 214, the speaker assembly 215 and the housing assembly 213 form a pressure relief chamber 2132.

[0069] This design allows for a further increase in the volume of the pressure relief chamber 2132 within a limited cavity space, improving the pressure relief effect of the sound-generating part 210 and ensuring the sound output of the headphones 200. Furthermore, positioning the pressure relief hole 2131 close to the extension part 2143 prevents it from being obstructed by the sound-generating component 2152, ensuring a larger pressure relief area and thus achieving a better pressure relief effect.

[0070] In some embodiments, such as Figure 7As shown, the extension 2143 can form a clearance position with the corresponding connected first sidewall 21331 and / or second sidewall 21332 to avoid the pressure relief hole 2131 on the first sidewall 21331 or the second sidewall 21332.

[0071] Specifically, at least one pressure relief hole 2131 is provided on the first sidewall 21331 and / or the second sidewall 21332 connected to the extension 2143. The corresponding pressure relief hole 2131 is close to the connection between the extension 2143 and the first sidewall 21331 or the second sidewall 21332, and the extension 2143 extends away from the speaker assembly 215 to avoid the pressure relief hole 2131 and prevent it from being blocked, so that the pressure relief hole 2131 can better communicate with the pressure relief cavity 2132, thereby ensuring the pressure relief effect of the pressure relief hole 2131.

[0072] In some embodiments, such as Figure 7 As shown, there can be two extensions 2143, and at least two pressure relief holes 2131. One end of each extension 2143 is connected to the first sidewall 21331 and the second sidewall 21332, respectively, and the other end of each extension 2143 is connected to the connecting part 2142. That is, the connecting part 2142 is located between the two extensions 2143. The two pressure relief holes 2131 can be distributed on the first sidewall 21331 and the second sidewall 21332, and correspond to the two clearance positions formed by the extension 2143 and the first sidewall 21331 and the second sidewall 21332, respectively.

[0073] By providing a pressure relief hole 2131 on both the first sidewall 21331 and the second sidewall 21332, the communication effect between the pressure relief cavity 2132 and the outside can be improved. Furthermore, by providing two extensions 2143 to avoid the two pressure relief holes 2131, the volume of the pressure relief cavity 2132 can be further increased, making the internal structure of the housing assembly 213 more compact. This eliminates the need to increase the size of the housing assembly 213 to increase the volume of the pressure relief cavity 2132, thereby improving the space utilization rate of the housing assembly 213.

[0074] In some embodiments, such as Figure 4 as well as Figure 5 As shown, a sound outlet 204 may be provided on the third sidewall 21333. The sound outlet 204 can be used to transmit the sound emitted by the speaker assembly 215 out of the housing assembly 213 and to the external auditory canal 101 of the ear 100. The third sidewall 21333 may form an arc-shaped protrusion 205 facing the external auditory canal 101 at a position corresponding to the first sub-accommodating area 2011, and the sound outlet 204 is provided on the arc-shaped protrusion 205.

[0075] As an example, such as Figure 5As shown, in the spaced direction D from the second housing 2134 toward the first housing 2133, the portion of the third sidewall 21333 corresponding to the first sub-accommodating area 2011 extends beyond the portion of the third sidewall 21333 corresponding to the second sub-accommodating area 2012 to form an arc-shaped protrusion area 205.

[0076] Since the third sidewall 21333 is positioned facing the user's ear 100 when worn, an arc-shaped protrusion 205 is provided on the third sidewall 21333 in the portion corresponding to the first sub-accommodation area 2011 that accommodates the sound-emitting component 2152, and the sound outlet 204 is provided on the arc-shaped protrusion 205. This can shorten the sound path of the sound waves emitted by the speaker component 215 to the user's external auditory canal 101 and improve the user's listening effect.

[0077] In other embodiments, such as Figures 8 to 13 As shown, housing assembly 213 may include a first housing 2133 and a third housing 2135. A partition 214 may be disposed within the first housing 2133 and integrally formed with the first housing 2133. The partition 214, the first housing 2133, the third housing 2135, and the speaker assembly 215 may constitute a pressure relief chamber 2132.

[0078] This configuration not only improves the sealing effect between the partition 214 and the first housing 2133, and enhances the isolation effect between the pressure relief chamber 2132 and the remaining cavities of the accommodating chamber 201, but also simplifies the structure of the sound-generating part 210 and reduces the assembly difficulty of the sound-generating part 210.

[0079] In some embodiments, such as Figures 8 to 13 As shown, the first housing 2133 may include a first sidewall 21331, a second sidewall 21332, a third sidewall 21333, and a fourth sidewall 21334 connected to each other. The first sidewall 21331 and the second sidewall 21332 are arranged side-by-side and spaced apart from each other, while the third sidewall 21333 and the fourth sidewall 21334 are spaced apart along the thickness direction of the housing assembly 213. In the wearing state, the third sidewall 21333 is closer to the external auditory canal 101 than the fourth sidewall 21334. At least one pressure relief hole 2131 is provided on the first sidewall 21331 and / or the second sidewall 21332, and a partition 214 connects the third sidewall 21333 and the fourth sidewall 21334. The thickness direction refers to the direction in which the housing assembly 213 approaches or moves away from the ear 100 in the wearing state. As an example, the thickness direction may be as follows: Figure 13 The direction is indicated by Z.

[0080] Specifically, in the wearing state, the third sidewall 21333 is closer to the external auditory canal 101 than the fourth sidewall 21334, and the third sidewall 21333 is blocked by the ear 100, while the first sidewall 21331 generally faces the top of the user's head, and the second sidewall 21332 generally faces away from the top of the user's head. At least one pressure relief hole 2131 is provided on the first sidewall 21331 and / or the second sidewall 21332. On the one hand, since the first sidewall 21331 and the second sidewall 21332 are not easily blocked by the ear 100, the pressure relief effect of the pressure relief hole 2131 can be guaranteed. On the other hand, the orientation of at least one pressure relief hole 2131 can face and / or face away from the top of the user's head, making it less likely for leaked sound to be transmitted to other people's ears, thus ensuring the user's listening privacy to a certain extent. By integrally forming the partition 214 with the first housing 2133 and connecting the first sidewall 21331, the second sidewall 21332, the third sidewall 21333 and the fourth sidewall 21334, gaps generated during the assembly of the partition 214 and the first housing 2133 can be avoided. This allows for better separation of the pressure relief chamber 2132 from the other cavities of the receiving cavity 201, improving the sealing performance of the pressure relief chamber 2132 relative to the other cavities of the receiving cavity 201.

[0081] In some embodiments, such as Figures 9 to 10 As shown, the third housing 2135, the first housing 2133, and the partition 214 can cooperate to form a first sub-accommodating area 2011. The third housing 2135 can form an arc-shaped protrusion 205 facing the external auditory canal 101. A sound outlet 204 is provided on the arc-shaped protrusion 205. The speaker assembly 215 is disposed in the first sub-accommodating area 2011, and the sound emitted by the speaker assembly 215 is transmitted out of the housing assembly 213 through the sound outlet 204 and transmitted to the external auditory canal 101 of the ear 100.

[0082] Specifically, when worn, the third housing 2135 faces and is close to the external auditory canal 101 located in the concha cavity 102. Therefore, an arc-shaped protrusion area 205 is provided in the third housing 2135, and the sound outlet 204 is provided on the arc-shaped protrusion area 205, which can shorten the sound path of the sound waves emitted by the speaker assembly 215 to the user's external auditory canal 101 and improve the user's listening effect.

[0083] In some embodiments, such as Figure 4 , Figure 5 as well as Figure 10 As shown, the earphone 200 may also include a battery holder 240 and a main control circuit board 250. The battery holder 240 may be disposed in the accommodating cavity 201. The battery holder 240 may be used to cooperate with the housing assembly 213 to limit the battery 216. The main control circuit board 250 may be supported on the battery holder 240.

[0084] The main control circuit board 250 refers to one of the core control components inside the earphone 200. The earphone 200 can be a PCB (Printed Circuit Board) or an FPC (Flexible Printed Circuit Board), etc. The main control circuit board 250 can be electrically connected to the battery 216, and the battery 216 can power the main control circuit board 250. The main control circuit board 250 can also be electrically connected to the speaker assembly 215.

[0085] Specifically, the battery bracket 240 can be fixedly connected to the housing assembly 213 by means of snap-fit, adhesive, or other methods. The battery 216 is disposed within the accommodating space 201 formed by the battery bracket 240, and the main control circuit board 250 is mounted on and fixed to the battery bracket 240. In this way, the battery bracket 240 and the housing assembly 213 cooperate to limit the position of the battery 216 and the main control circuit board 250, thereby fixing the battery 216 and the main control circuit board 250 within the accommodating cavity 201. This achieves functional reuse of the battery bracket 240, simplifies the internal structure of the sound-generating part 210, eliminates the need for multiple fixing components, reduces the size of the sound-generating part 210, and also facilitates the assembly and manufacturing of the earphone 200.

[0086] In some embodiments, such as Figure 8 as well as Figure 10 As shown, housing assembly 213 may include a second housing 2134, which, together with the first housing 2133 and the partition 214, can cooperate to form a second sub-accommodating area 2012. The battery bracket 240, battery 216, and main control circuit board 250 are all installed in the second sub-accommodating area 2012. The first housing 2133 and the third housing 2135 are assembled to form a first sub-accommodating area 2011 to accommodate the speaker assembly 215.

[0087] In some embodiments, such as Figure 11 as well as Figure 12 As shown, a connecting hole 2144 can be provided on the partition 214, which can connect the first sub-accommodating area 2011 and the second sub-accommodating area 2012. Figure 10 As shown, the earphone 200 may include a flexible circuit board 260, which passes through the connecting hole 2144 and is electrically connected to the main control circuit board 250 and the speaker assembly 215. The connecting hole 2144 is filled with sealing material.

[0088] The flexible printed circuit board 260 (FPC), also known as a flexible circuit board, is a circuit board made of flexible materials (such as polyimide or polyester film) as the substrate, and has high flexibility and bendability. The flexible printed circuit board 260 can be bent and folded in the accommodating cavity 201, so that it can be inserted through the connecting hole 2144 and electrically connected to the main control circuit board 250 and the speaker assembly 215.

[0089] This design, utilizing the flexibility and bendability of the flexible circuit board 260, allows it to adapt to the size and shape of the accommodating cavity 201. This facilitates electrical connection between the main control circuit board 250 and the speaker assembly 215 while also reducing the size of the sound-emitting section 210. Filling the connecting hole 2144 with sealing material isolates the pressure relief cavity 2132 from the second accommodating area, enhancing the sealing effect.

[0090] In some embodiments, such as Figure 6 As shown, the partition 214 may have a first stepped portion 2141 and a second stepped portion 2145, and the first stepped portion 2141 and the second stepped portion 2145 have a height difference along the thickness direction Z of the housing assembly 213. The battery bracket 240 is mounted on the second stepped portion 2145 of the partition 214 near the speaker assembly 215, and forms a third assembly gap 206 with the partition 214, which is filled with sealing material.

[0091] Specifically, in the spaced direction D from the second housing 2134 toward the first housing 2133, the first step portion 2141 can be lower than the second step portion 2145, the plate portion 21512 of the inner cover 2151 can be mounted on the first step portion 2141, and the side of the battery bracket 240 near the sound-generating assembly 2152 is mounted on the second step portion 2145 of the partition 214. Therefore, the partition 214 can not only separate the pressure relief chamber 2132 from the other cavities of the accommodating chamber 201, but also provide support and positioning for the battery bracket 240 to fix the battery bracket 240. This allows for the reuse of the function of the partition 214, and also makes the internal structure of the sound-generating part more compact, and can also reduce the size of the sound-generating part 210.

[0092] Furthermore, the second assembly gap 203 between the plate portion 21512 and the first step portion 2141, as well as the third assembly gap 206 formed by the battery bracket 240 and the partition 214, are filled with sealing material. This can improve the sealing effect between the pressure relief chamber 2132 and the remaining cavities of the accommodating chamber 201, and reduce the possibility of impurities entering the second sub-accommodating area 2012 through the second assembly gap 203 and the third assembly gap 206 between the pressure relief chamber 2132 and the second sub-accommodating area 2012.

[0093] In some embodiments, such as Figure 4 As shown, the battery holder 240 may include a main body 241, which may include a first frame 2411, a second frame 2412, a third frame 2413, and a fourth frame 2414. The first frame 2411 and the second frame 2412 are arranged side by side and spaced apart, and the third frame 2413 and the fourth frame 2414 are arranged side by side and spaced apart. The first frame 2411, the second frame 2412, the third frame 2413, and the fourth frame 2414 form a limiting area 2415, in which the battery 216 is embedded. The main body 241 is limited and engaged with the housing assembly 213.

[0094] Specifically, the battery bracket 240 is fixed to the housing assembly 213 by means of snap-fitting, adhesive, etc., and the battery 216 is embedded in the limiting area 2415 in the middle of the battery bracket 240, and the battery bracket 240 and the housing assembly 213 cooperate to fix the battery 216. This arrangement can occupy less space to limit and fix the battery 216, and can also increase the structural compactness and stability of the earphone 200.

[0095] The shape of the battery holder 240 can be as follows: Figure 4 The quadrilateral shown. Alternatively, in some other embodiments, the battery holder 240 may be U-shaped or other shapes, and the battery holder 240 may cooperate with the housing assembly 213 and the separator 214 or other elements to limit the battery 216.

[0096] In some embodiments, the battery 216 may be cylindrical, and the axial direction of the battery 216 may be consistent with the spacing direction of the free end 212 and the connecting end 211, and the dimension of the battery 216 along the axial direction is larger than the dimension of the battery 216 in the radial direction. The third frame 2413 and the fourth frame 2414 may be spaced apart along the axial direction.

[0097] As an example, the spacing direction (axial direction of battery 216) between the free end 212 and the connecting end 211 can be as follows: Figure 5 as well as Figure 7 As shown in the Y direction, the radial direction of battery 216 can be as follows: Figure 7 As shown in the X direction. The dimensions of battery 216 along the axial direction are as follows. Figure 7 As shown in L1, the dimensions of battery 216 along its radial direction are as follows: Figure 7 As shown in L2.

[0098] Specifically, the axial direction of the battery 216 is aligned with the Y-direction of the interval between the free end 212 and the connecting end 211, and the dimension of the battery 216 along its axial direction is greater than its radial direction dimension. This allows the battery 216 to fit the overall shape of the sound-emitting part 210, thereby improving the space utilization of the headphone 200 and reducing the dimension of the sound-emitting part 210 in the vertical direction of the interval between the free end 212 and the connecting end 211. The spacing direction between the free end 212 and the connecting end 211 is the length extension direction of the sound-generating part 210. In the wearing state, at least a part of the structure of the helix 107 and the tragus 108 can be located on both sides of the sound-generating part 210 along a direction perpendicular to the spacing direction Y of the free end 212 and the connecting end 211. Therefore, by reducing the size of the sound-generating part 210 in the direction perpendicular to the spacing direction Y of the free end 212 and the connecting end 211, the sound-generating part 210 is less likely to compress at least a part of the structure of the helix 107 or the tragus 108 of the user when wearing it, so that the headphones 200 are easier for the user to wear and the user wearing experience is improved.

[0099] In some embodiments, such as Figure 4 As shown, the battery bracket 240 may further include a plurality of support columns 242 disposed on the side of the main body 241 near the main control circuit board 250, and the main control circuit board 250 is supported on the plurality of support columns 242. The projection of the main control circuit board 250 along the normal direction of the main surface of the main control circuit board 250 partially overlaps with the battery 216 and the speaker assembly 215, respectively.

[0100] For example, there can be four support pillars 242, which can be located at the four corners of the main body 241. The four support pillars 242 can also support the four corners of the main control circuit board 250 to fix the main control circuit board 250. Of course, in other embodiments, the number of support pillars 242 can be two, three, five, or six, etc.

[0101] Setting multiple support pillars 242 to limit the main control circuit board 250 can further strengthen the limitation of the main control circuit board 250, thereby improving the structural stability and tightness of the earphone 200.

[0102] As an example, the normal direction of the main surface of the main control circuit board 250 can be as follows: Figure 5 As shown in LH.

[0103] The projection of the main control circuit board 250 along the normal direction of its main surface partially overlaps with the battery 216 and the speaker assembly 215. This not only facilitates the battery bracket 240 in limiting and fixing the main control circuit board 250, but also reduces the size of the sound-emitting part 210 in the direction perpendicular to the normal direction, making the internal structure of the sound-emitting part 210 more compact and improving the space utilization inside the headphone 200.

[0104] In some embodiments, such as Figure 14 As shown, the loudspeaker assembly 215 may include an annular frame 2153 and two sound-generating components 2152. The two sound-generating components 2152 may be spaced apart along the axial direction X of the annular frame 2153. Each sound-generating component 2152 may include a diaphragm 21521 and a magnetic circuit system 21522 disposed on the side of the diaphragm 21521 facing away from the other sound-generating component 2152. The diaphragms 21521 of the two sound-generating components 2152 are arranged adjacently and form a sound outlet cavity 207 between them. The annular frame 2153 is provided with a sound outlet channel 208 and a pressure relief channel 209. The pressure relief channel 209 connects the pressure relief cavity 2132 to the side of the diaphragm 21521 of each sound-generating component 2152 facing away from the other sound-generating component 2152.

[0105] The housing assembly 213 is provided with a sound outlet 204, and the sound outlet channel 208 connects the sound outlet 204 and the sound outlet cavity 207. The annular frame 2153 abuts against the housing assembly 213 on the periphery of the sound outlet 204 and is sealed along the circumference of the sound outlet 204 so that the sound outlet cavity 207 and the pressure relief cavity 2132 are isolated from each other.

[0106] Each sound-generating component 2152's magnetic circuit system 21522 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 21521 to vibrate and generate sound waves. The sound waves generated by the diaphragm 21521 can propagate out of the housing assembly 213 through the sound outlet cavity 207, the sound outlet channel 208, and the sound outlet hole 204 in sequence. The diaphragms of the two sound-generating components 2152 are arranged opposite each other to form the sound outlet cavity 207, which can achieve a larger volume of sound output within a limited housing space, ensuring the user's listening effect. The outside can be connected to the pressure outlet cavity 2132 and the pressure outlet channel 209 on the annular frame 2153 through the pressure relief hole 2131 on the housing assembly 213, so as to relieve pressure on the side of the diaphragm 21521 of each sound-generating component 2152 away from the other sound-generating component 2152 when the sound-generating component 2152 generates sound waves, thereby ensuring the pressure relief effect of the speaker assembly 215 and ensuring the sound output quality of the headphones 200.

[0107] In some embodiments, such as Figure 14 As shown, the magnetic circuit systems 21522 of the two sound-generating components 2152 can protrude from the annular frame 2153 along the axial direction X of the annular frame 2153. Along the axial direction X of the annular frame 2153, the annular frame 2153 is mounted on the protruding parts of the magnetic circuit systems 21522 of the two sound-generating components 2152 and is sealed to the outer peripheral surface of the magnetic circuit systems 21522 of the two sound-generating components 2152.

[0108] Specifically, in the radial direction E of the annular frame 2153, the projection of the annular frame 2153 falls completely on the projection of the two sound-generating components 2152. In this way, the annular frame 2153 can achieve isolation between the pressure relief channel 209 and the sound-generating channel without increasing the axial dimension of the annular frame 2153. That is, the size of the speaker assembly 215 can be reduced in the axial direction of the annular frame 2153, so as to further reduce the axial dimension of the sound-generating part 210.

[0109] The axial direction X of the annular frame 2153 can be arranged along the spacing direction between the first sidewall 21331 and the second sidewall 21332 of the first housing 2133. Since the sound-emitting part 210 is located between at least a portion of the structure of the helix 107 and the tragus 108 when the earphone 200 is worn, and the third sidewall 21333 faces the external auditory canal 101 of the ear 100, at least a portion of the structure of the helix 107 and the tragus 108 are located on both sides of the sound-emitting part 210 along the spacing direction between the first sidewall 21331 and the second sidewall 21332 (axial direction of the annular frame 2153). Therefore, the axial size of the sound-emitting part 210 is reduced, thereby reducing the compression of the tragus 108 or the helix 107 by the sound-emitting part 210 when worn, thus improving the user's wearing experience.

[0110] In summary, this application separates the battery 216 and the speaker assembly 215 by setting a partition 214 in the housing assembly 213, and sets the speaker assembly 215, housing assembly 213, and partition 214 to form a pressure relief chamber 2132. This achieves separation between the remaining cavities of the receiving cavity 201 and the pressure relief chamber 2132, minimizing communication between the pressure relief hole 2131 and the remaining cavities of the receiving cavity 201. This prevents external moisture, metal particles, dust, and other impurities from entering the remaining cavities outside the pressure relief chamber 2132. Moreover, this arrangement reduces the occurrence of impurities damaging or corroding the battery and other electronic components, improving the compactness and service life of the headphone 200.

[0111] 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 that connects to the ear hook part and a free end that is away from the connecting end. When worn, the ear hook part is wrapped around the upper ear root to the back of the ear, and the free end is inserted into the concha cavity of the ear without blocking the external auditory canal. The sound-emitting part includes a housing assembly, a partition, a speaker assembly, and a battery. The housing assembly forms a receiving cavity. The partition is disposed within the receiving cavity and divides the receiving cavity into a first sub-receiving area and a second sub-receiving area. The first sub-receiving area is closer to the free end than the second sub-receiving area. The speaker assembly is disposed in the first sub-receiving area, and the battery is disposed in the second sub-receiving area. The housing assembly is provided with at least one pressure relief hole, and the speaker assembly cooperates with the housing assembly and the partition to form a pressure relief cavity communicating with the at least one pressure relief hole. The pressure relief cavity is configured to be isolated from the other cavities of the receiving cavity.

2. The earphone according to claim 1, characterized in that, The loudspeaker assembly includes an inner cover and a sound-emitting component. The inner cover includes a cover portion and a plate portion connected to each other. The cover portion is mounted on the sound-emitting component, and the plate portion is connected to the partition. The inner cover, the housing assembly, the partition, and the sound-emitting component constitute the pressure relief chamber.

3. The earphone according to claim 2, characterized in that, A first assembly gap is formed between the inner cover and the housing assembly, and the first assembly gap is filled with sealing material.

4. The headphones according to claim 2 or 3, characterized in that, The partition has a first stepped portion, and the plate body is mounted on the first stepped portion.

5. The earphone according to claim 4, characterized in that, A second assembly gap is formed between the plate portion and the first step portion, and the second assembly gap is filled with sealing material.

6. The earphone according to claim 2, characterized in that, The housing assembly includes a first housing and a second housing, which are assembled to form the accommodating cavity. In the wearing state, the first housing is closer to the external auditory canal than the second housing. The first housing includes a first sidewall and a second sidewall arranged side by side and spaced apart from each other, and a third sidewall connecting the first sidewall and the second sidewall. The at least one pressure relief hole is provided on the first sidewall and / or the second sidewall. In the wearing state, the first sidewall faces the top of the user's head, and the second sidewall faces away from the top of the user's head.

7. The earphone according to claim 6, characterized in that, The partition is disposed within the first housing and connects the first sidewall, the second sidewall, and the third sidewall. The partition includes a connecting portion and an extension portion that are connected to each other. The extension portion extends away from the sound-generating component relative to the connecting portion and is connected to the first sidewall and / or the second sidewall. The at least one pressure relief hole is disposed near the extension portion.

8. The earphone according to claim 7, characterized in that, The extension forms a clearance position with the corresponding connected first sidewall and / or second sidewall to avoid at least one pressure relief hole on the first sidewall and / or second sidewall.

9. The headphones according to claim 8, characterized in that, The number of extensions is two, and the number of at least one pressure relief hole is also two. One end of each of the two extensions is connected to the first sidewall and the second sidewall, respectively, and the other end of each of the two extensions is connected to the connecting part. The two pressure relief holes are distributed on the first sidewall and the second sidewall, and respectively correspond to two avoidance positions formed by the extensions and the first sidewall and the second sidewall.

10. The earphone according to claim 7, characterized in that, The third sidewall is provided with a sound outlet, which is used to transmit the sound emitted by the speaker assembly out of the housing assembly and to the external auditory canal. The third sidewall forms an arc-shaped protrusion area facing the external auditory canal at a position corresponding to the first sub-accommodating area, and the sound outlet is disposed on the arc-shaped protrusion area.

11. The earphone according to claim 1, characterized in that, The housing assembly includes a first housing and a third housing. The partition is disposed inside the first housing and integrally formed with the first housing. The partition, the first housing, the third housing, and the speaker assembly constitute the pressure relief chamber.

12. The earphone according to claim 11, characterized in that, The first housing includes a first sidewall, a second sidewall, a third sidewall, and a fourth sidewall connected to each other. The first sidewall and the second sidewall are arranged side by side and spaced apart from each other. The third sidewall and the fourth sidewall are spaced apart along the thickness direction of the housing assembly. In the wearing state, the third sidewall is closer to the external auditory canal than the fourth sidewall. At least one pressure relief hole is provided on the first sidewall and / or the second sidewall. The partition connects the third sidewall and the fourth sidewall. The thickness direction is the direction in which the housing assembly is closer to or farther from the ear in the wearing state.

13. The headphones according to claim 11, characterized in that, The third housing, together with the first housing and the partition, forms the first sub-accommodating area. The third housing forms an arc-shaped protrusion area facing the external auditory canal, and a sound outlet is provided on the arc-shaped protrusion area.

14. The earphone according to claim 1, characterized in that, The earphone also includes a battery bracket and a main control circuit board. The battery bracket is disposed in the accommodating cavity and is used to cooperate with the housing assembly to limit the battery position. The main control circuit board is supported on the battery bracket.

15. The headphones according to claim 14, characterized in that, The partition has a first step and a second step, and the first step and the second step have a height difference along the thickness direction of the housing assembly. The battery bracket is mounted on the second step of the partition on the side near the speaker assembly, and forms a third assembly gap with the partition. The third assembly gap is filled with sealing material. The thickness direction is the direction in which the housing assembly is close to or away from the ear when worn.

16. The earphone according to claim 14, characterized in that, The partition has a connecting hole that connects the first sub-accommodating area and the second sub-accommodating area. The earphone includes a flexible circuit board that passes through the connecting hole and is electrically connected to the main control circuit board and the speaker assembly. The connecting hole is filled with a sealing material.

17. The earphone according to claim 14, characterized in that, The battery holder includes a main body, which includes a first frame, a second frame, a third frame, and a fourth frame. The first frame and the second frame are arranged side by side and spaced apart from each other, and the third frame and the fourth frame are arranged side by side and spaced apart from each other. The first frame, the second frame, the third frame, and the fourth frame enclose a limiting area, and the battery is embedded in the limiting area. The main body is limited and engaged with the housing assembly.

18. The earphone according to claim 17, characterized in that, The battery is cylindrical, and the axial direction of the battery is consistent with the spacing direction of the free end and the connecting end. The dimension of the battery along the axial direction is greater than the dimension of the battery in the radial direction. The third frame and the fourth frame are spaced apart along the axial direction.

19. The earphone according to claim 17, characterized in that, The battery bracket also includes a plurality of support columns disposed on the side of the main body near the main control circuit board. The main control circuit board is supported on the plurality of support columns, and the projection of the main control circuit board along the normal direction of the main surface of the main control circuit board partially overlaps with the battery and the speaker assembly, respectively.

20. The earphone according to claim 1, characterized in that, The loudspeaker assembly includes an annular frame and two sound-generating components, which are spaced apart along the axial direction of the annular frame. 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 outlet cavity between them. The annular frame is provided with a sound outlet channel and a pressure relief channel. The pressure relief channel connects the pressure relief cavity to the side of the diaphragm of each sound-generating component facing away from the other sound-generating component. The housing assembly is provided with a sound outlet hole. The sound outlet channel connects the sound outlet hole and the sound outlet cavity. The annular frame abuts against the housing assembly at the periphery of the sound outlet hole and is circumferentially sealed along the sound outlet hole so that the sound outlet cavity and the pressure relief cavity are isolated from each other.

21. The earphone according to claim 20, characterized in that, The magnetic circuit systems of the two sound-generating components protrude from the annular frame along the axial direction of the annular frame. Along the axial direction of the annular frame, the annular frame rests on the protruding portions of the magnetic circuit systems of the two sound-generating components and is sealed to the outer peripheral surfaces of the magnetic circuit systems of the two sound-generating components.

Images