Earphone

Abstract

The invention provides an earphone. The earphone comprises a shell assembly, a loudspeaker and a protective net. The shell assembly is provided with a containing cavity and a pressure relief hole used for communicating the containing cavity with the external environment, and an opening of the pressure relief hole is formed in the bottom of the shell assembly in the height direction. The loudspeaker is arranged in the accommodating cavity; the protective net is connected to the shell assembly and covers an opening of the pressure relief hole. Projection is carried out in the height direction, and the length of the projection of the protective net is more than 0.4 times that of the projection of the shell assembly. Through the above mode, the overall size area of the protective net can be effectively improved, the risk that the pressure relief holes are blocked due to the fact that a water film is formed at the protective net by external adverse factors such as sweat and rainwater is reduced, the pressure relief holes can be effectively ensured to normally perform pressure relief work, and the sound production stability of the earphone is effectively improved.

Description

earphone

Technical field

[0001] The present application relates to the technical field of sound-producing instruments, and in particular to headphones. [Background Technology]

[0002] Headphones have been widely used in people's daily lives. They can be used in conjunction with electronic devices such as mobile phones and computers to provide users with an auditory feast. At present, the air conduction sound transmission principle has been widely used in headphones. Headphones that transmit sound through air conduction have the characteristics of high sound quality and are therefore loved by the majority of users. Generally, the protection scheme for the pressure relief holes of existing air conduction speakers is relatively simple. The pressure relief holes serve as working holes that connect the external environment of the headphones and the air conduction speakers. The stability of the pressure relief function will directly affect the sound quality of the air conduction speakers. Since the current headphone structure has a relatively simple protection scheme for the pressure relief holes of the air conduction speakers, extreme phenomena such as blockage of the pressure relief holes or damage to the air conduction speakers often occur, which greatly affects the user's practical experience.

[0003] [Summary of the invention]

[0004] The present application provides an earphone comprising: a housing assembly, a speaker, and a protective net. The housing assembly is provided with a receiving cavity and a pressure relief hole for connecting the receiving cavity with the external environment, the opening of the pressure relief hole being located at the bottom of the housing assembly along the height direction; the speaker is disposed within the receiving cavity; the protective net is connected to the housing assembly and covers the opening of the pressure relief hole; and the length of the projection of the protective net along the height direction is at least 0.4 times the length of the projection of the housing assembly.

[0005] In some embodiments, the protective net includes a first portion that is lower in height and a second portion that extends away from the first portion; as the second portion gradually moves away from the first portion, the second portion gradually becomes higher in height than the first portion.

[0006] In some embodiments, the area of ​​the protective net is more than 1.5 times the area of ​​the opening.

[0007] In some embodiments, the housing assembly is provided with a first recessed portion, the first recessed portion is communicated with the pressure relief hole, and the protective net also covers an opening of the first recessed portion.

[0008] In some embodiments, the first recessed portion extends away from the pressure relief hole; as the first recessed portion gradually moves away from the pressure relief hole, the first recessed portion gradually becomes higher than the opening of the pressure relief hole along the height direction.

[0009] In some embodiments, the protective net includes a first portion that is lower in the height direction and a second portion extending away from the first portion; as the second portion gradually moves away from the first portion, the second portion gradually becomes higher than the first portion in the height direction; and the second portion covers at least a portion of the opening of the first recessed portion.

[0010] In some embodiments, the housing assembly includes a support member that separates an opening of the pressure relief hole from an opening of the first recessed portion, and the support member supports the protective net.

[0011] In some embodiments, the shell assembly is provided with a sound receiving hole, which is arranged adjacent to the opening of the pressure relief hole, and the protective net also covers the sound receiving hole.

[0012] In some embodiments, the opening of the sound receiving hole is higher than the opening of the pressure relief hole.

[0013] In some embodiments, the protective net includes a first portion that is lower in height and a second portion that extends away from the first portion; as the second portion gradually moves away from the first portion, the second portion gradually becomes higher than the first portion in height; and the second portion covers the opening of the sound receiving hole.

[0014] In some embodiments, the sound receiving hole is formed on the supporting wall, and the protective net is arranged in contact with the supporting wall.

[0015] In some embodiments, the housing assembly is provided with a second recessed portion, and the protective net is provided in the second recessed portion.

[0016] In some embodiments, the protective net includes a steel net, a gauze net and a waterproof membrane, wherein the side of the steel net facing the opening of the pressure relief hole is provided with a gauze net, and the side of the gauze net facing the opening of the pressure relief hole is provided with a waterproof membrane.

[0017] In some embodiments, the mesh openings of the steel mesh are smaller than the mesh openings of the gauze mesh.

[0018] The present application provides an earphone comprising: a housing assembly, a speaker, and a first annular protrusion. The housing assembly is provided with a receiving cavity, and the housing assembly is provided with a pressure relief hole for connecting the receiving cavity with the external environment, the opening of the pressure relief hole being arranged along the height direction at the bottom of the housing assembly; the speaker is arranged in the receiving cavity; the first annular protrusion is arranged around the opening of the pressure relief hole and extends downward from the bottom of the housing assembly.

[0019] In some embodiments, the first annular protrusion is a metal ring or a plastic ring bonded to the bottom of the housing assembly.

[0020] In some embodiments, the first annular protrusion is an integrally formed structure with a portion of the housing assembly.

[0021] In some embodiments, a protective net is further included, which covers the opening of the pressure relief hole; in the height direction, the protective net is higher than the bottom surface of the first annular protrusion.

[0022] In some embodiments, the inner side surface of the first annular protrusion includes an annular support surface, which is connected to the protective net; in the height direction, the bottom surface of the protective net is flush with the bottom surface of the first annular protrusion.

[0023] In some embodiments, the first annular protrusion includes a first part and a second part connected to the first part, the first part is connected to the bottom of the shell assembly; the cross-sectional dimension of the internal channel of the first part is smaller than the cross-sectional dimension of the internal channel of the second part, and an annular support surface is formed at the transition between the first part and the second part.

[0024] In some embodiments, an annular groove is provided on the outer edge of the annular support surface, and an adhesive is provided in the annular groove.

[0025] In some embodiments, the protective net includes a steel net, a gauze net and a waterproof membrane, wherein the side of the steel net facing the opening of the pressure relief hole is provided with a gauze net, and the side of the gauze net facing the opening of the pressure relief hole is provided with a waterproof membrane.

[0026] In some embodiments, the accommodating cavity includes a first accommodating cavity and a second accommodating cavity that are isolated from each other; the speaker includes a bone conduction speaker and an air conduction speaker, the bone conduction speaker is arranged in the first accommodating cavity, and the air conduction speaker is arranged in the second accommodating cavity.

[0027] In some embodiments, the pressure relief hole is configured to open and extend toward the side where the first accommodating chamber is located. In some embodiments, the accommodating chamber includes a first accommodating chamber and a second accommodating chamber that are isolated from each other; the speaker includes a bone conduction speaker and an air conduction speaker, the bone conduction speaker is disposed in the first accommodating chamber, and the air conduction speaker is disposed in the second accommodating chamber.

[0028] In some embodiments, the pressure relief hole is configured to extend toward a side where the first accommodating cavity is located.

[0029] The beneficial effect of the present application is that the above-mentioned setting method is connected to the shell assembly through the protective net and covers the opening of the pressure relief hole, wherein, along the height direction, the projection length of the protective net is 0.4 times the projection length of the shell assembly. Based on this setting, the overall size area of ​​the protective net is effectively improved, and the risk of external adverse factors such as sweat and rain forming a water film on the protective net and clogging the pressure relief hole is reduced, thereby effectively ensuring that the pressure relief hole can perform pressure relief work normally, thereby effectively improving the stability of the earphone sound.

Brief Description of the Drawings

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0031] FIG1 is a schematic diagram of the assembled three-dimensional structure of an embodiment of the earphone of the present application;

[0032] FIG2 is a schematic diagram of a three-dimensional structure of a portion of the speaker assembly and the wearable assembly shown in FIG1 ;

[0033] FIG3 is an exploded schematic diagram of the structure of the speaker assembly shown in FIG2 ;

[0034] FIG4 is an exploded schematic diagram of the structure of the air conduction speaker shown in FIG2 ;

[0035] FIG5 is a schematic cross-sectional view of the structure of the air conduction speaker shown in FIG2 ;

[0036] FIG6 is a schematic diagram of the three-dimensional structure of the magnetic conductive cover shown in FIG4;

[0037] FIG7 is a schematic diagram of the three-dimensional structure of the magnetic conductive plate shown in FIG4;

[0038] FIG8 is a line graph showing the relationship between the predetermined ratio of the total area of ​​the weight-reducing structure on the magnetic cover to the total area of ​​the magnetic cover in FIG6 and the weight change of the speaker assembly and the sensitivity change of the air conduction speaker;

[0039] FIG9 is a schematic diagram of the three-dimensional structure of the magnet shown in FIG4 ;

[0040] FIG10 is an exploded view of a first embodiment of a pressure relief hole protection solution for the speaker assembly shown in FIG2 ;

[0041] FIG11 is a schematic structural diagram of a portion of the first embodiment of the pressure relief hole protection solution of the speaker assembly shown in FIG10 after assembly;

[0042] FIG12 is a schematic diagram of the three-dimensional structure of the protective net shown in FIG10;

[0043] FIG13 is a front view of a second embodiment of the pressure relief hole protection solution for the speaker assembly shown in FIG2 ;

[0044] FIG14 is a schematic diagram of the cross-sectional structure of an embodiment of area A shown in FIG13;

[0045] FIG15 is a schematic diagram of the cross-sectional structure of another embodiment of the area A shown in FIG13. [Specific implementation method]

[0046] In order to enable those skilled in the art to better understand the technical solution of the present application, the charging box provided by the present application is further described in detail below with reference to the accompanying drawings and specific embodiments. It is understandable that the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0047] The terms "first," "second," and the like in this application are used to distinguish between different objects, not to describe a particular order. Furthermore, the terms "including," "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or elements is not limited to the listed steps or elements, but may optionally include steps or elements not listed, or may optionally include other steps or elements inherent to the process, method, product, or apparatus.

[0048] This application proposes a wearable electronic device, wherein the wearable device includes a core assembly. The wearable electronic device includes headphones, glasses, AR (augmented reality) devices, or VR (virtual reality) devices. The following describes an exemplary structure of the wearable device through the practical application of the wearable electronic device in headphones.

[0049] As shown in Figure 1, the headset 100 may include a speaker assembly 1, an ear hook assembly 2 and a back-hanging assembly 3. The number of speaker assemblies 1 can be two. The two speaker assemblies 1 are used to transmit vibration and / or sound to the user's left ear and right ear respectively. The two speaker assemblies 1 can be the same or different. For example, one speaker assembly 1 can be provided with a microphone, while the other speaker assembly 1 can not be provided with a microphone. For another example, one speaker assembly 1 can be provided with a button and a corresponding circuit board, while the other speaker assembly 1 can not be provided with the button and the corresponding circuit board. The two speaker assemblies 1 can adopt the same configuration in terms of the movement module (such as the speaker module). The speaker assembly 1 described later in this article can be considered to be described in detail using one of the two speaker assemblies 1 as an example. The number of ear hook assemblies 2 can be two, and the two ear hook assemblies 2 can be hung on the user's left ear and right ear respectively, so that the speaker assembly 1 can fit the user's face. For example, one ear hook assembly 2 can be provided with a battery, and the other ear hook assembly 2 can be provided with a control circuit, etc. One end of the ear hook assembly 2 is connected to the speaker assembly 1, and the other end of the ear hook assembly 2 is connected to the back-hanging assembly 3. The rear hanging component 3 connects the two ear hanging components 2. The rear hanging component 3 is used to wrap around the back of the user's neck or the back of the head, and can provide a clamping force so that the two speaker components 1 are clamped on both sides of the user's face or firmly set on the outside of the user's ears, and the ear hanging components 2 are more firmly hung on the user's ears. Of course, the headset 100 may also not include the rear hanging component 3, and the speaker component 1 is worn on the user's ears through the ear hanging component 2. Alternatively, in some embodiments, the headset 100 may also not include the ear hanging component 2, and the speaker component 1 is connected through a head-mounted structure or a neck-hanging structure, and each speaker component 1 is pressed against the user's face or firmly set on the outside of the user's ears through the head-mounted structure or the neck-hanging structure.

[0050] The following mainly describes the structure of the speaker assembly 1 and other components of the earphone 100. In some embodiments, the speaker assembly 1 may also be referred to as a core assembly.

[0051] Optionally, as shown in Figures 1, 2, 3, 4 and 5, the speaker assembly 1 includes a housing assembly 10, a bone conduction speaker 11 and an air conduction speaker 12.

[0052] The housing assembly 10 is provided with a first accommodating chamber 1001 and a second accommodating chamber 1002. The bone conduction speaker 11 is disposed within the first accommodating chamber 1001, and the air conduction speaker 12 is disposed within the second accommodating chamber 1002. The air conduction speaker 12 includes a magnetic circuit system 1260. Magnetic circuit system 1260 comprises a magnet 1210 and a magnetic conductive assembly 1220. Magnet 1210 is fixed to magnetic conductive assembly 1220, which is fixed within the second accommodating chamber 1002. A weight-reducing structure 1223 is provided on magnetic conductive assembly 1220.

[0053] Specifically, in one embodiment, a bone conduction speaker 11 and an air conduction speaker 12 are simultaneously disposed within the same housing assembly 10. During operation, the bone conduction speaker 11 drives the entire speaker assembly 1 to vibrate, thereby transmitting sound to the user's ears. The air conduction speaker 12 includes a magnetic circuit system 1260, which includes a magnet 1210 and a magnetic conductive assembly 1220. Furthermore, a weight-reducing structure 1223 is provided on the magnetic conductive assembly 1220. This weight-reducing structure 1223 is used to reduce the overall weight of the air conduction speaker 12, thereby effectively reducing the overall weight of the speaker assembly 1, improving the user experience, and enhancing the operational stability of the bone conduction speaker 11. Furthermore, since the bone conduction speaker 11 needs to drive the entire speaker assembly 1 to vibrate to transmit sound to the user's ears during operation, reducing the overall weight of the speaker assembly 1 can increase the sensitivity of the bone conduction speaker 11, thereby effectively improving the sound transmission quality of the bone conduction speaker 11 and, consequently, the sound quality of the headphones.

[0054] Optionally, the weight-reducing structure 1223 includes at least one of a groove and a through-hole provided on the magnetic conductive component 1220. In some embodiments, the weight-reducing structure 1223 of the magnetic conductive component 1220 can be realized by providing a through-hole or a groove on the magnetic conductive component 1220, or by providing both a through-hole and a groove as the weight-reducing structure 1223 of the magnetic conductive component 1220. For example, in one embodiment, the weight-reducing structure 1223 is realized by providing a through-hole on the magnetic conductive component 1220, thereby effectively reducing the overall weight of the speaker assembly 1.

[0055] Optionally, the magnetic induction intensity at the location where the weight-reducing structure 1223 is provided on the magnetic conductive component 1220 is less than the magnetic induction intensity at other locations. By providing grooves and / or through holes at locations with less magnetic induction intensity on the magnetic conductive component 1220, the effect of the grooves or through holes on the magnetic conductive component 1220's magnetic conductive function can be minimized, thereby effectively reducing the overall weight of the speaker assembly 1 while minimizing the impact on the magnetic conductive function of the magnetic conductive component 1220.

[0056] Optionally, the magnetic conductive assembly 1220 includes a magnetic conductive cover 1221 and a magnetic conductive plate 1222. The magnet 1210 is fixed within the magnetic conductive cover 1221, and the magnetic conductive plate 1222 is fixed on the magnet 1210. The weight reduction structure 1223 is provided on at least one of the magnetic conductive cover 1221 and the magnetic conductive plate 1222. The weight reduction structure 1223 on the magnetic conductive cover 1221 and the magnetic conductive plate 1222 may be one or more. When multiple weight reduction structures 1223 are used, the multiple weight reduction structures 1223 are arranged at intervals.

[0057] Specifically, the magnetic cover 1221 is provided with a magnet receiving groove for accommodating and fixing the magnet 1210, the magnet 1210 is fixed in the magnet receiving groove, and the magnetic conductive plate 1222 is fixed on the side of the magnet 1210 facing away from the magnet receiving groove. For example, referring to Figure 5, in one embodiment, the magnetic cover 1221 and the magnetic conductive plate 1222 are both provided with one or more weight-reducing structures 1223 as described in the above embodiment. In other embodiments, one or more weight-reducing structures 1223 may be provided only on the magnetic conductive plate 1222 or the magnetic cover 1221. For example, in one embodiment, a weight-reducing structure 1223 is provided on the magnetic cover 1221, and a corresponding weight-reducing structure 1223 is also provided on the magnetic conductive plate 1222. Based on this, the overall weight of the speaker assembly 1 can be further reduced, thereby effectively improving the sound quality of the earphones.

[0058] Optionally, in one embodiment, the magnetic shield 1221, the magnet 1210, and the magnetic plate 1222 are sequentially aligned along the air conduction operating direction X1 of the air conduction speaker 12. This effectively ensures the center of gravity of the magnetic assembly 1220 is centered. The air conduction operating direction X1 is the direction in which the diaphragm of the air conduction speaker 12 vibrates during operation.

[0059] Optionally, as shown in FIG6 , the magnetic shield 1221 includes a bottom wall 1224 and an annular sidewall 1225 extending from the bottom wall 1224, and the weight-reducing structure 1223b is disposed on the bottom wall 1224. Specifically, referring to FIG6 , in one embodiment, the magnetic shield 1221 includes a bottom wall 1224 and an annular sidewall 1225 extending from the bottom wall 1224, wherein the bottom wall 1224 and the annular sidewall 1225 enclose and form the magnet receiving groove described above. Furthermore, in one embodiment, the weight-reducing structure 1223b is disposed on the bottom wall 1224, for example, by providing a groove or a through hole on the bottom wall 1224. This effectively reduces the material usage of the bottom wall 1224, thereby effectively reducing the weight of the magnetic shield 1221, thereby reducing the weight of the air conduction speaker 12, effectively improving the operating stability of the bone conduction speaker 11, and thereby effectively improving the sound quality of the earphones.

[0060] 5 and 6 , the weight-reducing structure 1223b is centrally located on the bottom wall 1224. Specifically, the weight-reducing structure 1223b on the magnetic cover 1221 is centrally located on the bottom wall 1224 of the magnetic cover 1221. The magnetic induction intensity at the middle position of the bottom wall 1224 of the magnetic cover 1221 is smaller than that at other positions. Therefore, the central location of the weight-reducing structure 1223b on the bottom wall 1224 can effectively reduce the impact of the weight-reducing structure 1223b on the magnetic conductivity function of the magnetic component 1220, while also effectively ensuring that the center of gravity of the magnetic cover 1221 is aligned, thereby effectively improving the working stability of the bone conduction speaker 11 and further effectively improving the sound quality of the headphones.

[0061] It is understandable that in some other embodiments of the present application, the weight-reducing structure 1223 b may also be disposed at other locations on the bottom wall 1224 of the magnetic conductive cover 1221 .

[0062] 5 and 7 , the weight-reducing structure 1223a is centrally disposed on the magnetic plate 1222. Specifically, the weight-reducing structure 1223a on the magnetic plate 1222 is centrally disposed on the magnetic plate 1222. The centers of gravity of the components of the air conduction speaker 12, such as the magnetic plate 1222, the magnetic cover 1221, and the magnet 1210, are generally centrally disposed and located on the same straight line along the air conduction working direction X1. This ensures that the center of gravity of the air conduction speaker 12 is approximately located at the geometric center of the air conduction speaker 12. The centrally disposed weight-reducing structure 1223a effectively prevents the weight-reducing structure 1223a from affecting the center of gravity of the magnetic plate 1222, thereby preventing the center of gravity of the air conduction speaker 12 from shifting, thereby effectively improving the operating stability of the bone conduction speaker 11 and, in turn, the sound quality of the earphones. Moreover, the magnetic induction intensity at the middle position of the magnetic conductive plate 1222 is smaller than that at other positions. Therefore, the weight-reducing structure 1223a is centrally arranged on the magnetic conductive plate 1222 to reduce the weight of the air conduction speaker 12 while reducing the influence of the weight-reducing structure 1223a on the magnetic conductive function of the magnetic conductive component 1220.

[0063] Optionally, the total area of ​​the weight-reducing structures on the magnetic cover 1221 accounts for an area of ​​the bottom wall 1224 of the magnetic cover 1221 that is less than or equal to a preset ratio; and the total area of ​​the weight-reducing structures on the magnetic plate 1222 accounts for an area of ​​the magnetic plate 1222 that is less than or equal to a preset ratio. Within the preset ratio, the magnetic induction intensity at locations where the weight-reducing structures are located is lower than at other locations, thereby reducing the weight of the air conduction speaker 12 while minimizing the impact of the weight-reducing structures 1223a on the magnetic conduction function of the magnetic assembly 1220.

[0064] Specifically, referring to Figures 5, 6, and 7, in one embodiment, a weight-reducing structure is provided on both the magnetic conductive plate 1222 and the magnetic conductive cover 1221. The area of ​​the bottom wall 1224 of the magnetic conductive cover 1221 is the area enclosed by the outer edge contour 1224a of the bottom wall 1224, and the total area of ​​the weight-reducing structure 1223b on the magnetic conductive cover 1221 is the total area enclosed by the outer edge contour 1224a of the weight-reducing structure 1223b. In one embodiment, the preset ratio is 50%. In other words, the total area of ​​the weight-reducing structure 1223b on the magnetic conductive cover 1221 accounts for less than or equal to 50% of the area of ​​the bottom wall 1224 of the magnetic conductive cover 1221. Based on this, the weight of the magnetic conductive cover 1221 can be effectively reduced without affecting the magnetic conductive function of the magnetic conductive cover 1221. Similarly, the area of ​​the magnetic conductive plate 1222 is the area enclosed by the outer edge contour 1222a of the magnetic conductive plate 1222, and the total area of ​​the weight-reducing structures 1223a on the magnetic conductive plate 1222 is the total area enclosed by the outer edge contour 1222b of the weight-reducing structures 1223a. The total area of ​​the weight-reducing structures 1223a on the magnetic conductive plate 1222 accounts for less than or equal to 50% of the area of ​​the magnetic conductive plate 1222. This effectively reduces the weight of the magnetic conductive plate 1222 while maintaining the magnetic conductivity of the magnetic conductive plate 1222. In some embodiments, if multiple weight-reducing structures 1223b are provided on the magnetic conductive cover 1221, the total area of ​​the weight-reducing structures 1223b on the magnetic conductive cover 1221 is the sum of the areas of each weight-reducing structure 1223b. Similarly, if a plurality of weight-reducing structures 1223 a are provided on the magnetic conductive plate 1222 , the total area of ​​the weight-reducing structures on the magnetic conductive plate 1222 is the sum of the areas of each weight-reducing structure 1223 b .

[0065] As shown in FIG8 , a simulation experiment was conducted using a preset ratio of the total area of ​​the weight-reducing structure 1223b of the magnetic cover 1221 to the total area of ​​the bottom wall 1224. The resulting curve Z2 shows the relationship between the preset ratio and the sensitivity change of the air conduction speaker 12, as well as the curve Z1 showing the relationship between the preset ratio and the weight change of the speaker assembly 1. Referring to curve Z1, the weight change of the speaker assembly 1 increases as the preset ratio increases, while the thickness of the bottom wall 1224 decreases. In other words, the weight of the speaker assembly 1 decreases as the preset ratio increases, while the thickness of the bottom wall 1224 decreases. Referring to curve Z2, the sensitivity change of the air conduction speaker 12 increases slightly and then decreases as the preset ratio increases, while maintaining the same bottom wall 1224 thickness. Therefore, selecting a preset ratio of less than or equal to 50% effectively ensures the weight reduction effect of the speaker assembly 1 while minimizing the impact of the weight-reducing structure 1223b on the magnetic conductivity of the magnetic cover 1221. Furthermore, it can be seen that, under the same thickness conditions for bottom wall 1224, a preset ratio of less than or equal to 30% can achieve a better weight reduction effect for speaker assembly 1 while minimizing the impact on the magnetic conductivity of magnetic shield 1221. Similarly, similar simulation experiments can be conducted for magnetic plate 1222 to obtain the corresponding experimental data described above. It can be concluded that a preset ratio of less than or equal to 30% can achieve a better weight reduction effect for speaker assembly 1 while minimizing the impact on the magnetic conductivity of magnetic plate 1222. The magnet 1210 is similarly described below and will not be further described in detail.

[0066] Optionally, in some embodiments, the preset ratio may be 50% and greater than 0, for example, 45%, 40%, 35%, 28%, 20%, 10%, 5%, etc. In other words, the total area of ​​the weight-reducing structures 1223b on the magnetic cover 1221 accounts for less than or equal to 50% of the area of ​​the bottom wall 1224 of the magnetic cover 1221. This effectively reduces the weight of the magnetic cover 1221 while maintaining the magnetic conductivity of the magnetic cover 1221. The total area of ​​the weight-reducing structures 1223a on the magnetic plate 1222 accounts for less than 50% of the area of ​​the magnetic plate 1222. This effectively reduces the weight of the magnetic plate 1222 while maintaining the magnetic conductivity of the magnetic plate 1222.

[0067] In some embodiments, only one of the magnetic plate 1222 and the magnetic cover 1221 is provided with the above-mentioned weight-reducing structure 1223, wherein the ratio of the total area of ​​the weight-reducing structure 1223 to the area of ​​the bottom wall 1224 of the magnetic plate 1222 or the magnetic cover 1221 can be referred to the above content, and will not be repeated here.

[0068] Optionally, further referring to FIG6 , the planar shape of the weight-reducing structure 1223b is the same as the planar shape of the bottom wall 1224 of the magnetic cover 1221, and is proportionally reduced. Specifically, the planar shape of the weight-reducing structure 1223b is the same as the planar shape of the bottom wall 1224 of the magnetic cover 1221, and is proportionally reduced. It can be understood that the planar shape of the weight-reducing structure 1223b on the magnetic cover 1221 perpendicular to the air conduction working direction X1 is the same as the planar shape of the bottom wall of the magnetic cover 1221 perpendicular to the air conduction working direction X1, and is proportionally reduced. Based on this, the center of gravity of the magnetic cover 1221 can be effectively ensured. It can be understood that in other embodiments of the present application, the planar shape of the weight-reducing structure 1223b on the magnetic cover 1221 perpendicular to the air conduction working direction X1 and the planar shape of the bottom wall of the magnetic cover 1221 perpendicular to the air conduction working direction X1 can also be different.

[0069] Optionally, further referring to FIG7 , the planar shape of the weight-reducing structure 1223a on the magnetic conductive plate 1222 perpendicular to the air conduction working direction X1 is identical to the planar shape of the magnetic conductive plate 1222 perpendicular to the air conduction working direction X1, and is proportionally reduced. This effectively ensures the center of gravity of the magnetic conductive plate 1222. For example, in one embodiment, the weight-reducing structure 1223b, which has the same planar shape as the magnetic conductive cover 1221 and is proportionally reduced, is centrally disposed on the magnetic conductive cover 1221, while the weight-reducing structure 1223a, which has the same planar shape as the magnetic conductive plate 1222 and is proportionally reduced, is centrally disposed on the magnetic conductive cover 1221. This effectively ensures the center of gravity of the air conduction speaker 12 while also effectively reducing the weight of the speaker assembly 1, thereby effectively improving the sound quality of the earphones. It is understandable that in other embodiments of the present application, the planar shape of the weight-reducing structure 1223a on the magnetic conductive plate 1222 perpendicular to the air conduction working direction X1 may be different from the planar shape of the magnetic conductive plate 1222 perpendicular to the air conduction working direction X1.

[0070] Optionally, referring to Figures 5 and 9 , a weight-reducing structure 1223c may be provided on the magnet 1210. The weight-reducing structure 1223c is a groove or a through hole. In one embodiment, the weight-reducing structure 1223c is a through hole. This can further reduce the weight of the speaker assembly 1, thereby effectively improving the sound quality of the earphone.

[0071] Optionally, the magnetic induction intensity at the location of the weight-reducing structure 1223c on the magnet 1210 is less than the magnetic induction intensity at other locations. Specifically, the magnetic induction intensity at the location of the weight-reducing structure 1223c on the magnet 1210 is less than the magnetic induction intensity at other locations. Based on this configuration, the overall weight of the speaker assembly 1 can be effectively reduced without affecting the magnetic conductivity of the magnetic component 1220.

[0072] Optionally, further referring to Figures 5 and 9, the weight-reducing structure 1223c on the magnet 1210 is located at the center of the magnet 1210, and the planar shape of the weight-reducing structure 1223c on the magnet 1210 is the same as the planar shape of the magnet 1210 and is proportionally reduced. Specifically, the planar shape of the weight-reducing structure 1223c on the magnet 1210 is the same as the planar shape of the magnet 1210 and is proportionally reduced. It can be understood that the planar shape of the weight-reducing structure 1223c on the magnet 1210 perpendicular to the air conduction working direction X1 is the same as the planar shape of the magnet 1210 perpendicular to the air conduction working direction X1 and is proportionally reduced. The weight-reducing structure 1223c is arranged on the magnet 1210 based on the above method, which can effectively ensure the center of gravity of the air conduction speaker 12 while effectively reducing the weight of the speaker assembly 1, thereby effectively improving the sound quality of the earphone.

[0073] Optionally, the planar area of ​​the weight-reducing structure 1223c on the magnet 1210 accounts for less than a predetermined ratio of the planar area of ​​the magnet 1210. In one embodiment, the predetermined ratio is 50%, and in other embodiments, the predetermined ratio may be other values. The planar area of ​​the weight-reducing structure 1223c is the area enclosed by the outer edge 1210b of the weight-reducing structure 1223c, and the planar area of ​​the magnet 1210 is the area enclosed by the outer edge 1210a of the magnet. This effectively reduces the weight of the magnet 1210 while maintaining its magnetic conductivity.

[0074] Optionally, the weight-reducing structure 1223 does not need to be filled with other materials such as plastic, that is, the weight-reducing structure 1223 remains hollow. In this way, the weight-reducing effect can be fully achieved.

[0075] Optionally, referring to Figures 4 and 5, the air conduction speaker 12 further includes a retaining assembly 1230, which is fixed to the magnetic conductive assembly 1220 and fixedly connected to the housing assembly 10. The magnetic conductive assembly 1220, which is provided with the magnet 1210, is fixedly connected to the housing assembly 10 via the retaining assembly 1230, thereby facilitating the fixation of the magnetic conductive assembly 1220 within the housing assembly 10, improving the connection stability between the magnetic conductive assembly 1220 and the housing assembly 10, and reducing the vibration of the magnetic conductive assembly 1220 relative to the housing assembly 10, thereby effectively improving the operating stability of the air conduction speaker 12 and the sound quality of the earphones.

[0076] Optionally, referring to Figures 4 and 5 , the air conduction speaker 12 further includes a diaphragm 1240 and a voice coil 1250. The edge of the diaphragm 1240 is connected to the periphery of the retaining assembly 1230, and the voice coil 1250 is connected to the diaphragm 1240. Specifically, in one embodiment, the voice coil 1250 assembly is disposed around the periphery of the magnet 1210 and the magnetic conductive plate 1222. The edge of the diaphragm 1240 is connected to the periphery of the retaining assembly 1230, and the voice coil 1250 is connected to the diaphragm 1240. For example, as shown in Figures 4 and 5 , in one embodiment, the retaining assembly 1230 includes a retaining ring 1231 and a retaining body 1232. The retaining ring 1231 is sleeved around the periphery of the annular sidewall 1225 of the magnetic conductive cover 1221 and is located between the inner sidewall of the retaining body 1232 and the outer periphery of the annular sidewall 1225. Thus, the retaining ring 1231 is used to provide tension and relaxation force. The edge of the diaphragm 1240 is connected to the periphery of the holding body 1232. When assembling the holding assembly 1230 and the magnetic cover 1221, the holding ring 1231 can be directly placed on the outer periphery of the annular side wall 1225 of the magnetic cover 1221. The magnetic cover 1221 with the holding ring 1231 can then be pushed into the inner periphery of the holding body 1232 along the air conduction working direction X1. This can quickly fix the magnetic cover 1221 to the holding assembly 1230. Based on this, the magnetic cover 1221 and the holding body 1232 can maintain a stable fixed connection, while also effectively improving the assembly efficiency of the air conduction speaker 12.

[0077] Optionally, referring to Figures 10 and 11 , the housing assembly 10 is provided with a pressure relief hole 1008 for communicating with the second accommodating chamber 1002 and the external environment. The pressure relief hole 1008 is arranged to extend toward the side where the first accommodating chamber 1001 is located. The housing assembly 10 is provided with a pressure relief hole 1008 for relieving pressure for the air conduction speaker 12. The pressure relief hole 1008 connects the second accommodating chamber 1002 with the external environment, and the pressure relief hole 1008 extends from the connection point with the second accommodating chamber 1002 toward the side where the first accommodating chamber 1001 is located. For example, a portion of the wall of the pressure relief hole 1008 extends from the connection point with the second accommodating chamber 1002 toward the side where the first accommodating chamber 1001 is located. This arrangement effectively reduces the space occupied by the pressure relief hole 1008 outside the first accommodating chamber 1001, effectively utilizing the space between the first accommodating chamber 1001 and the second accommodating chamber 1002. This improves the space utilization of the housing assembly 10, allowing the housing assembly 10 to be more compact and reasonable while still meeting the sound generation requirements of the air conduction speaker 12. Furthermore, this oblique extension increases the size of the pressure relief hole 1008, thereby providing better sound quality for the air conduction speaker 12.

[0078] 2 and 3 , the housing assembly 10 may include a housing 101, a housing 102, and a housing 103, wherein the housing 101 and the housing 102 cooperate with each other to form a first accommodating chamber 1001. The housing 101 and / or the housing 102 further form a portion of a second accommodating chamber 1002, and the housing 103 may form another portion of the second accommodating chamber 1002. Furthermore, the housing 103 cooperates with the housing 101 and / or the housing 102 to form the second accommodating chamber 1002.

[0079] The housing assembly 10 can be composed of a housing 101, a housing 102, and a housing 103 that cooperate with each other. The housings 101 and 102 cooperate to form a first accommodating cavity 1001, and the housing 103 cooperates with the housing 101 to form a second accommodating cavity 1002. The housing assembly 10, composed of the housings 101, 102, and 103 of the aforementioned structure, can make the speaker assembly 1 compact while also facilitating assembly of the speaker assembly 1, thereby improving assembly efficiency of the speaker assembly 1. In some embodiments, the housing 101 can be referred to as a first housing; the housing 102 can be referred to as a second housing; and the housing 103 can be referred to as a third housing.

[0080] The housing assembly 10 may include a housing 101, a housing 102, and a housing 103. A partition wall 1012 may be provided on the housing 101 and / or the housing 102, and the housing 101 and the housing 102 cooperate with each other to form the first accommodating chamber 1001 and the pressure relief hole 10081. For example, the housing 101 and / or the housing 102 further form a portion of the second accommodating chamber 1002. For example, the housing 103 may form another portion of the second accommodating chamber 1002, and the housing 103 cooperates with the housing 101 and / or the housing 102 to form the second accommodating chamber 1002. The provision of the partition wall 1012 on the housing 101 and / or the housing 102 may be understood as the partition wall 1012 being a portion of the housing 101 and / or the housing 102. Of course, the arrangement of the partition wall 1012 is not limited to being arranged on the housing 101 and / or the housing 102. In other embodiments, the partition wall 1012 may also be a component independent of the housing 101 and / or the housing 102.

[0081] As shown in FIG3 , a partition wall 1012 is provided on the housing 101. The housing 101 is provided with a sub-accommodating chamber 1010 and a sub-accommodating chamber 1011 located on opposite sides of the partition wall 1012. The opening direction of the sub-accommodating chamber 1010 is arranged along the wall surface of the partition wall 1012. Specifically, the opening direction of the sub-accommodating chamber 1010 is parallel or approximately parallel to the wall surface of the partition wall 1012. The opening direction of the sub-accommodating chamber 1011 is arranged to intersect the wall surface of the partition wall 1012. The housing 102 is provided with a sub-accommodating chamber 1020. The housing 102 covers the open end of the sub-accommodating chamber 1010. The sub-accommodating chamber 1020 cooperates with the sub-accommodating chamber 1010 to form the first accommodating chamber 1001. Housing 103 is provided with a sub-accommodating chamber 1030, which covers the open end of sub-accommodating chamber 1011. Sub-accommodating chamber 1030 and sub-accommodating chamber 1011 cooperate to form second accommodating chamber 1002. In some embodiments, sub-accommodating chamber 1010 may also be referred to as the first sub-accommodating chamber; sub-accommodating chamber 1011 may also be referred to as the second sub-accommodating chamber; sub-accommodating chamber 1020 may also be referred to as the third sub-accommodating chamber; and sub-accommodating chamber 1030 may also be referred to as the fourth sub-accommodating chamber.

[0082] By setting a partition wall 1012 to divide the shell 101 into a sub-accommodation chamber 1010 set along the wall of the partition wall 1012 with its opening direction and a sub-accommodation chamber 1012 set crosswise with the wall of the partition wall 1012, both the sub-accommodation chamber 1010 and the sub-accommodation chamber 1012 can realize a larger space, thereby improving the space utilization rate of the shell 101, and also reducing the mutual interference between the vibrations of the bone conduction speaker 11 and the air conduction speaker 12 during operation, thereby improving the sound quality.

[0083] Optionally, as shown in Figures 3, 10, 11, and 12, this application also proposes a first embodiment of a pressure relief hole 1008 protection solution for protecting the pressure relief hole 1008. This first embodiment of the pressure relief hole 1008 protection solution is applicable to the earphone 100 described above that is simultaneously equipped with a bone conduction speaker 11 and an air conduction speaker 12, and can also be applied to earphones 100 that are solely equipped with an air conduction speaker 12. This document primarily describes the first embodiment of the pressure relief hole 1008 protection solution for earphones 100 that are simultaneously equipped with an air conduction speaker 12 and a bone conduction speaker 11, as implemented in the aforementioned manner. The first embodiment of the pressure relief hole 1008 protection solution is described in detail as follows.

[0084] The speaker assembly 1 includes a protective net 13. The housing assembly 10 is provided with a receiving cavity and a pressure relief hole 1008 for connecting the receiving cavity with the external environment. The opening of the pressure relief hole 1008 is located at the bottom 104 of the housing assembly 10 along the height direction G1. The speaker is disposed within the receiving cavity. The protective net 13 is connected to the housing assembly 10 and covers the opening of the pressure relief hole 1008. When projected along the height direction G1, the length L1 of the projection of the protective net 13 is at least 0.4 times the length L2 of the projection of the housing assembly 10.

[0085] Specifically, as shown in Figures 3 and 10, the housing cavity is used to accommodate a speaker. As described above, the housing cavity includes a first housing cavity 1001 and a second housing cavity 1002 spaced apart from each other. The speaker includes an air conduction speaker 12 and a bone conduction speaker 11. The air conduction speaker 12 is disposed in the second housing cavity 1002, and the bone conduction speaker 11 is disposed in the first housing cavity 1001. The specific structure of the housing assembly 10 is described above and will not be described in detail here. In other embodiments, the housing cavity of the earphone 100 may only be provided with the air conduction speaker 12, which will not be described in detail here.

[0086] As shown in Figures 10 and 11 , the housing assembly 10 is provided with a pressure relief hole 1008 for the air conduction speaker 12 to relieve pressure. Pressure relief hole 1008 communicates with the accommodating chamber and the external environment. This can be understood as pressure relief hole 1008 communicating with the second accommodating chamber 1002 for accommodating the air conduction speaker 12 and the external environment. The relative positional relationship between pressure relief hole 1008 and the accommodating chamber is described above and will not be further elaborated herein.

[0087] Furthermore, the pressure relief hole 1008 is located at the bottom 104 of the shell assembly 10 along the height direction G1, and when the earphone 100 is in a wearing state, the height direction G1 can be roughly parallel to the direction of gravity, and the bottom 104 of the shell assembly 10 is located below in the height direction G1 or the direction of gravity. Based on this, the opening of the pressure relief hole 1008 is located at the bottom 104 of the shell assembly 10 along the height direction G1, which can effectively prevent sweat, rainwater and other external adverse factors from entering the accommodating cavity along the opening of the pressure relief hole 1008, thereby effectively preventing sweat, rainwater and other external adverse factors from damaging the speaker (this embodiment refers to the air conduction speaker 12), thereby effectively improving the working stability of the earphone 100. Furthermore, the earphone 100 includes a protective net 13 for shielding against external adverse factors such as sweat, rain, and sand. The protective net 13 is connected to the housing assembly 10 and covers the opening of the pressure relief hole 1008. The length L1 of the projection of the protective net 13 along the height direction G1 is at least 0.4 times the length L2 of the projection of the housing assembly 10. The projection length L1 is the length of the protective net 13 along the air conduction working direction X1. The length L1 of the projection of the protective net 13 can be 0.4 to 1 times the length L2 of the projection of the shell assembly 10, for example, 0.4 times, 0.45 times, 0.5 times, 0.55 times, 0.6 times, 0.7 times, 0.8 times, 0.9 times, 1 times, etc. Based on this setting, the overall size area of ​​the protective net 13 is effectively increased, and the risk of external adverse factors such as sweat and rain forming a water film at the protective net 13 and blocking the pressure relief hole 1008 is reduced, thereby effectively ensuring that the pressure relief hole 1008 can perform pressure relief work normally, thereby effectively improving the stability of the sound of the earphone 100. It is easy to understand that since the protective net 13 can be curved, its actual length can be greater than its projected length L1. Among them, the height direction G1 is the direction along the bottom 104 of the shell assembly 10 to the top 105 of the shell assembly 10, as follows.

[0088] Alternatively, as shown in FIG12 , the protective net 13 includes a first portion 13a that is lower in the height direction G1 and a second portion 13b that extends away from the first portion 13a. As the second portion 13b gradually moves away from the first portion 13a, the second portion 13b gradually becomes taller than the first portion 13a along the height direction G1. In this manner, the protective net 13 can have a curved shape, thereby adapting to the shape of the housing assembly 10.

[0089] Specifically, the protective net 13 includes a first part 13a which is lower in the height direction G1 and a second part 13b which extends away from the first part 13a, and as the second part 13b gradually moves away from the first part 13a, the second part 13b gradually becomes higher than the first part 13a along the height direction G1. Based on this, the protective net 13 is set to be curved, so that sweat, rainwater and other external adverse factors flowing through the second part 13b will eventually drip or slide directly to the first part 13a and then drip, thereby effectively preventing sweat, rainwater and other external adverse factors from accumulating in the second part 13b and forming a blockage, and setting the second part 13b higher than the first part 13a can effectively increase the kinetic energy of sweat, rainwater and other external adverse factors, thereby effectively preventing sweat, rainwater and other external adverse factors from accumulating on the protective net 13, causing blockage of the pressure relief hole 1008 and other phenomena, thereby effectively improving the working stability of the earphone 100.

[0090] 10 and 11 , the housing assembly 10 is further provided with a first recessed portion 1004, which is in communication with the pressure relief hole 1008. The protective net 13 also covers the opening of the first recessed portion 1004. Specifically, the housing assembly 10 is further provided with the first recessed portion 1004, wherein the first recessed portion 1004 is in communication with the pressure relief hole 1008. The air conduction working direction X1 is the vibration direction of the air conduction speaker 12 during operation, and the air conduction working direction X1 is substantially perpendicular to the height direction G1. Based on this, the first recessed portion 1004 can serve as an auxiliary pressure relief hole for the air conduction speaker 12, effectively increasing the pressure relief area of ​​the pressure relief hole. Furthermore, when the pressure relief hole 1008 is blocked, the air conduction speaker 12 can continue to relieve pressure through the first recessed portion 1004, thereby effectively reducing the probability and degree of loss of low-frequency sound from the earphone 100, thereby effectively improving the operating stability of the earphone 100.

[0091] Optionally, the first recessed portion 1004 extends away from the pressure relief hole 1008; as the first recessed portion 1004 gradually moves away from the pressure relief hole 1008, the first recessed portion 1004 gradually becomes higher than the opening of the pressure relief hole 1008 along the height direction G1. Specifically, the first recessed portion 1004 is located on one side of the pressure relief hole 1008 along an arrangement direction X2 that is parallel to the air conduction working direction X1 and perpendicular to the height direction G1, and the first recessed portion 1004 extends away from the pressure relief hole 1008. As the first recessed portion 1004 gradually moves away from the pressure relief hole 1008, the first recessed portion 1004 gradually becomes higher than the opening of the pressure relief hole 1008. Based on this, the first recessed portion 1004 can be effectively prevented from being blocked or infiltrated by external factors such as sweat and rainwater, thereby effectively improving the operating stability of the air conduction speaker 12.

[0092] Alternatively, referring to Figures 10, 11, and 12, the protective net 13 includes a first portion 13a that is lower in the height direction G1 and a second portion 13b that extends away from the first portion 13a. As the second portion 13b gradually moves away from the first portion 13a, the second portion 13b gradually becomes taller than the first portion 13a along the height direction G1. The second portion 13b covers at least a portion of the opening of the first recess 1004. Specifically, the protective net 13 is configured in an arc shape based on the above-described method. Among them, the second part 13b covers at least a part of the opening of the first recessed portion 1004. For example, in one embodiment, the first part 13a covers a part of the opening of the first recessed portion 1004, and the second part 13b covers another part of the opening of the first recessed portion 1004. Based on this, the first recessed portion 1004 and the pressure relief hole 1008 are completely covered by the protective net 13, which can effectively prevent external factors such as sweat and rain from clogging the pressure relief hole 1008 and the first recessed portion 1004, and effectively prevent other external granular adverse factors from entering the second accommodating space along the pressure relief hole 1008 and the first recessed portion 1004 to cause damage to the air conduction speaker 12, thereby effectively improving the sound stability of the earphone 100. Among them, the protective net 13 is set to be an arc shape based on the above method, so that sweat, rainwater and other external adverse factors flowing through the second part 13b will eventually drip directly or slide down to the first part 13a and then drip, thereby effectively preventing sweat, rainwater and other external adverse factors from accumulating in the second part 13b and forming crystals, and setting the second part 13b higher than the first part 13a can effectively increase the kinetic energy of sweat, rainwater and other external adverse factors, thereby effectively preventing sweat, rainwater and other external adverse factors from accumulating on the protective net 13, causing blockage of the pressure relief hole 1008 and other phenomena, thereby effectively improving the working stability of the earphone 100.

[0093] Optionally, as shown in Figures 10 and 11, the housing assembly 10 includes a support member 1005, which separates the opening of the pressure relief hole 1008 from the opening of the first recessed portion 1004, and the support member 1005 is used to support the protective net 13. Specifically, the support member 1005 is arranged between the pressure relief hole 1008 and the first recessed portion 1004, so that it can abut against the central area of ​​the protective net 13. Based on this, it can effectively prevent the protective net 13 from collapsing due to its excessive area, thereby ensuring that the protective net 13 can perform the above functions normally and stably, thereby effectively improving the working stability of the earphone 100. Optionally, in some embodiments, the support member 1005 can be a structure integrally formed with the housing assembly 10. In other embodiments, the support member 1005 can be an independent component connected to the housing assembly 10 by a connector such as glue.

[0094] Optionally, as shown in Figures 10 and 11, the housing assembly 10 is provided with a sound receiving hole 1007, which is disposed adjacent to the opening of the pressure relief hole 1008, and the protective net 13 also covers the sound receiving hole 1007. Specifically, the sound receiving hole 1007 for receiving sound information in the earphone 100 (for example, the user's voice enters the microphone of the earphone 100 along the sound receiving hole 1007) is disposed adjacent to the pressure relief hole 1008, and the protective net 13 also covers the sound receiving hole 1007. The protective net 13 can effectively protect the sound receiving hole 1007 and prevent it from being eroded by external adverse factors such as sweat and rain. In particular, the length L1 of the projection of the protective net 13 along the height direction G1 is at least 0.4 times the length L2 of the projection of the housing assembly 10. Based on this, the length of the protective net 13 is sufficiently long, so that the sound receiving hole 1007 and the pressure relief hole 1008 are staggered as much as possible in space, thereby effectively ensuring the sound quality of the earphone 100.

[0095] Optionally, as shown in Figures 10 and 11 , along the height direction G1, the opening of the sound receiving hole 1007 is higher than the opening of the pressure relief hole 1008. Therefore, disposing the sound receiving hole 1007 at a position higher than the bottom of the housing assembly 10 along the height direction G1 can effectively prevent the sound receiving hole 1007 from being corroded by external adverse factors such as sweat and rain.

[0096] Optionally, the area of ​​the protective net 13 is at least 1.5 times the area of ​​the open opening of the pressure relief hole 1008. For example, the area of ​​the protective net 13 can be 1.5 times, 1.8 times, 2 times, 2.5 times, 3 times, 4 times, 5 times, 6 times, 7 times, 8 times, 9 times, 10 times, etc., of the open opening of the pressure relief hole 1008. This configuration effectively ensures that the area of ​​the protective net 13 is sufficiently large, thereby reducing the risk of sweat, rain, and other adverse external factors forming a water film on the protective net 13 and clogging the pressure relief hole 1008, thereby effectively ensuring that the pressure relief hole 1008 can properly perform its pressure relief work, thereby effectively improving the stability of the sound produced by the earphone 100. Based on the above setting, the area of ​​the protective net 13 can be set to be large enough relative to the pressure relief hole 1008, so that the first recessed portion 1004, the sound receiving hole 1007 and the pressure relief hole 1008 can be protected more effectively together, thereby improving the protection efficiency. At the same time, multiple structures such as the first recessed portion 1004, the sound receiving hole 1007 and the pressure relief hole 1008 are placed together at the bottom 104 of the shell assembly 10, which can fully utilize the structural space of the shell assembly 10.

[0097] Optionally, as shown in Figures 10 and 11 , the protective net 13 includes a first portion 13a that is lower in the height direction G1 and a second portion 13b that extends away from the first portion 13a. As the second portion 13b gradually moves away from the first portion 13a, it gradually becomes taller than the first portion 13a along the height direction G1. The second portion 13b covers the open sound receiving hole 1007. Specifically, the protective net 13 is configured in an arc shape based on the above-described method. The second portion 13b, which is taller than the first portion 13a, covers the open sound receiving hole 1007. For example, in one embodiment, the first part 13a covers a part of the opening of the first recess 1004, and the second part 13b covers the opening of the sound hole 1007 and another part of the opening of the first recess 1004. Based on this, the sound hole 1007, the first recess 1004 and the pressure relief hole 1008 are completely covered by the protective net 13, which can effectively prevent external factors such as sweat and rain from clogging the sound hole 1007, the pressure relief hole 1008 and the first recess 1004, and effectively prevent other external granular adverse factors from entering the second accommodation space along the pressure relief hole 1008 and the first recess 1004 to cause damage to the air conduction speaker 12, thereby effectively improving the sound stability of the earphone 100.

[0098] Optionally, as shown in Figures 10 and 11 , a sound receiving hole 1007 is formed on the supporting wall 1006, and the protective net 13 is disposed in contact with the supporting wall 1006. Specifically, the supporting wall 1006 serves as a part of the housing assembly 10, wherein the sound receiving hole 1007 is formed on the supporting wall 1006, and the supporting wall 1006 is disposed in contact with the protective net 13 and supports the protective net 13, thereby effectively preventing the protective net 13 from collapsing under external forces and affecting the normal operation of the earphone 100, thereby effectively improving the stability of the earphone 100. Optionally, the support wall 1006 may be formed by being recessed along the height direction G1 as a portion of the bottom of the shell assembly 10, wherein the first recessed portion 1004 and the support wall 1006 are located in different planes along the height direction G1. For example, the first recessed portion 1004 is higher than the support wall 1006 along the height direction G1. Based on this, the sound receiving hole 1007 is arranged at a position lower than the first recessed portion 1004 along the height direction G1, which can effectively prevent the first recessed portion 1004 from affecting the sound receiving work of the sound receiving hole 1007 when performing the pressure relief function.

[0099] Optionally, as shown in Figures 9 and 10, the shell assembly 10 is provided with a second recessed portion 1009, and the protective net 13 is arranged in the second recessed portion 1009. Specifically, the second recessed portion 1009 can be formed by recessing a portion of the bottom area of ​​the shell assembly 10 along the height direction G1 as a whole, so as to accommodate the protective net 13. The outer peripheral edge of the second recessed portion 1009 can be further recessed along the height direction G1, so that the outer peripheral edge of the protective net 13 abuts and is fixedly connected to the outer peripheral edge of the second recessed portion 1009, for example, by applying glue on the outer peripheral edge of the second recessed portion 1009 to achieve the fixed connection of the protective net 13. The second recessed portion 1009 accommodates and fixes the protective net 13, based on which the outer surface of the protective net 13 smoothly transitions to the outer surface of the shell assembly 10, thereby effectively improving the smooth shape of the outer contour of the earphone 100.

[0100] Optionally, as shown in Figures 10 and 11, the protective net 13 includes a steel mesh 131, a gauze 132, and a waterproof membrane 133. The side of the steel mesh 131 facing the opening of the pressure relief hole 1008 is provided with the gauze 132, and the side of the gauze 132 facing the opening of the pressure relief hole 1008 is provided with the waterproof membrane 133. Specifically, in one embodiment, the protective net 13 includes the steel mesh 131, the gauze 132, and the waterproof membrane 133, and the side of the steel mesh 131 facing the opening of the pressure relief hole 1008, that is, the side of the steel mesh 131 close to the pressure relief hole 1008 (also referred to as the side close to the housing assembly 10) is provided with the gauze 132. Based on this, the gauze 132 can effectively prevent external particulate factors from entering the pressure relief hole 1008, thereby effectively protecting the air conduction speaker 12 from damage. Furthermore, a waterproof membrane 133 is provided on the side of the gauze 132 facing the open opening of the pressure relief hole 1008, i.e., the side of the gauze 132 close to the pressure relief hole 1008 (also referred to as the side close to the housing assembly 10). This waterproof membrane 133 effectively prevents sweat, rain, and other adverse external factors from entering the second accommodating chamber 1002 through the pressure relief hole 1008, thereby effectively protecting the air conduction speaker 12 and effectively improving the sound stability of the earphone 100. Optionally, in one embodiment, at least two layers of waterproof membrane 133 are provided on the side of the gauze 132 facing the open opening of the pressure relief hole 1008, thereby effectively improving the protective performance of the protective net 13.

[0101] Optionally, the mesh of the steel mesh 131 is smaller than the mesh of the gauze mesh 132. Based on this, the wind noise of the pressure relief hole 1008 can be effectively reduced, thereby effectively improving the sound quality of the earphone 100.

[0102] Optionally, as shown in Figures 3, 13, 14, and 15, this application also proposes a second embodiment of a pressure relief hole 1008 protection scheme for protecting the pressure relief hole 1008. This second embodiment of the pressure relief hole 1008 protection scheme is applicable to the earphone 100 described above that is simultaneously equipped with a bone conduction speaker and an air conduction speaker 12, and can also be applied to an earphone 100 that is solely equipped with an air conduction speaker 12. This article primarily describes the second embodiment of the pressure relief hole 1008 protection scheme for an earphone 100 that is simultaneously equipped with an air conduction speaker 12 and a bone conduction speaker, as implemented in the manner described above. The second embodiment of the pressure relief hole 1008 protection scheme is described in detail as follows.

[0103] The speaker assembly 1 includes a housing assembly 10, a speaker, and a first annular protrusion 20. The housing assembly 10 defines a receiving cavity. The housing assembly 10 is provided with a pressure relief hole 1008 for connecting the receiving cavity with the external environment. The opening of the pressure relief hole 1008 is located at the bottom 104 of the housing assembly 10 along the height direction G1. The speaker is disposed within the receiving cavity. The first annular protrusion 20 surrounds the opening of the pressure relief hole 1008 and extends downward from the bottom 104 of the housing assembly 10.

[0104] Specifically, as shown in FIG3 , the housing cavity is used to accommodate a speaker. As described above, the housing cavity includes a first housing cavity 1001 and a second housing cavity 1002 spaced apart from each other. The speaker includes an air conduction speaker 12 and a bone conduction speaker 11. The air conduction speaker 12 is disposed in the second housing cavity 1002, and the bone conduction speaker 11 is disposed in the first housing cavity 1001. The specific structure of the housing assembly 10 is described above and will not be described in detail herein. In other embodiments, the housing cavity of the earphone 100 may only be provided with the air conduction speaker 12, which will not be described in detail herein. In one embodiment, a pressure relief hole 1008 is provided on the housing assembly 10 for relieving pressure from the speaker (e.g., the air conduction speaker 12 in the above embodiment). The pressure relief hole 1008 is connected to the housing cavity (e.g., the second housing cavity 1002 in the above embodiment) and is connected to the external environment. The other relative positional relationships between the pressure relief hole 1008 and the housing cavity are described above and will not be described in detail herein. Different from the above embodiment, in this embodiment, the speaker assembly 1 includes a first annular protrusion 20, wherein the first annular protrusion 20 is arranged around the outer peripheral side of the opening of the pressure relief hole 1008 and extends downward from the bottom 104 of the shell assembly 10. The fact that the first annular protrusion 20 extends downward from the bottom 104 of the shell assembly 10 can be understood as the first annular protrusion 20 protruding from the bottom surface of the shell assembly 10 in the height direction. Based on this, it can effectively prevent external environmental factors such as sweat and rain from flowing into the pressure relief hole 1008, thereby causing damage to the speaker in the accommodating cavity, thereby effectively improving the stability of the sound of the earphone 100. The height direction G1 is the direction from the bottom 104 of the shell assembly 10 to the top 105 of the shell assembly 10, as described below. Optionally, in some embodiments, the first annular protrusion 20 can be simultaneously arranged around the opening of the pressure relief hole 1008 and the outer peripheral side of the sound receiving hole 1007. Based on this, it can effectively prevent external environmental factors such as sweat and rain from flowing into the pressure relief hole 1008 and the sound receiving hole 1007, thereby causing damage to the speaker in the accommodating cavity, thereby effectively improving the sound stability of the earphone 100.

[0105] Optionally, the first annular protrusion 20 is a metal ring or a plastic ring, which is bonded to the bottom 104 of the housing assembly 10. Specifically, in some embodiments, the first annular protrusion 20 can be a structural member such as a metal ring or a plastic ring, which is fixedly connected to the housing assembly 10 by a connector such as glue.

[0106] Optionally, the first annular protrusion 20 is an integrally molded structure with a portion of the housing assembly 10. Specifically, in some embodiments, a portion of the bottom of the housing assembly 10 located on the open outer peripheral side of the pressure relief hole 1008 protrudes and deforms in the height direction toward the side away from the pressure relief hole 1008 to form the first annular protrusion 20. Based on this, the first annular protrusion 20 and the housing assembly 10 are an integral structure. In the embodiment where the housing assembly 10 includes a housing 101, a housing 102, and a housing 103, the first annular protrusion 20 can be an integrally molded structure with the housing 101, or the first annular protrusion 20 can be an integrally molded structure with the housing 102; alternatively, a portion of the first annular protrusion 20 can be an integrally molded structure with the housing 101, and another portion of the first annular protrusion 20 can be an integrally molded structure with the housing 102. The integrally molded structure can simplify the manufacturing process of the first annular protrusion 20, enhance the structural strength of the first annular protrusion 20, and reduce manufacturing costs.

[0107] Optionally, as shown in FIG14 , the earphone 100 further includes a protective net 13 that covers the opening of the pressure relief hole 1008 ; in the height direction G1 , the protective net 13 is higher than the bottom surface 21 of the first annular protrusion 20 . Specifically, the protective net 13 is used to cover the opening of the pressure relief hole 1008 to prevent sweat, rain, and other adverse external factors from entering the pressure relief hole 1008 . Furthermore, in some embodiments, the protective net 13 is higher than the bottom surface 21 of the first annular protrusion 20 in the height direction G1 . That is, there is a height difference between the bottom surface 134 of the protective net 13 and the bottom surface 21 of the first annular protrusion 20 . This allows the protective net 13 to be completely submerged within the area enclosed by the first annular protrusion 20 , while still maintaining a certain height difference. This can, to a certain extent, reduce direct contact between the protective net 13 and external environmental factors such as rain and sweat, thereby reducing the possibility of rain, sweat, and other external environmental factors entering the pressure relief hole 1008 .

[0108] Optionally, as shown in FIG15 , in other embodiments, the earphone 100 includes a protective mesh 13, and the inner side surface of the first annular protrusion 20 includes an annular support surface 24, which is connected to the protective mesh 13. In the height direction G1, the bottom surface 134 of the protective mesh 13 is flush with the bottom surface 21 of the first annular protrusion 20. Specifically, in one embodiment, the first annular protrusion 20 includes a first portion 22 and a second portion 23 connected to the first portion 22 along the height direction G1. The first portion 22 is connected to the bottom 104 of the housing assembly 10. The cross-sectional dimensions of the internal passage of the first portion 22 are smaller than those of the internal passage of the second portion 23. The transition between the first portion 22 and the second portion 23 forms the annular support surface 24. Among them, the annular support surface 24 protrudes from the pressure relief hole 1008. The annular support surface 24 is used to support the protective net 13 and is fixedly connected to the protective net 13. Based on this setting, the bottom surface 134 of the protective net 13 is flush with the bottom surface 21 of the first annular protrusion 20, that is, the height difference between the bottom surface 134 of the protective net 13 and the bottom surface 21 of the first annular protrusion 20 is zero. Based on this, it can effectively prevent external factors such as sweat and rain from gathering in the space area between the bottom surface 134 of the protective net 13 and the bottom surface 21 of the first annular protrusion 20, causing blockage of the pressure relief hole 1008, thereby effectively improving the working stability of the earphone 100.

[0109] Optionally, as shown in FIG15 , an annular groove 25 is provided on the outer edge of the annular support surface 24, and an adhesive is provided in the annular groove 25. Specifically, the outer edge of the annular support surface 24 is located near the second portion 23, and the annular groove 25 is formed on the annular support surface 24 at this location. An adhesive, such as glue, is provided in the annular groove 25. The protective net 13 is connected to the annular support surface 24 via the adhesive, effectively securing the protective net 13 to the annular support surface 24.

[0110] Optionally, as shown in Figures 14 and 15 , the type of the protective net 13 is similar to that of the above-described embodiment, that is, the protective net 13 may include a steel net 131, a gauze 132, and a waterproof membrane 133. The side of the steel net 131 facing the opening of the pressure relief hole 1008 is provided with the gauze 132, and the side of the gauze 132 facing the opening of the pressure relief hole 1008 is provided with the waterproof membrane 133. In other words, in one embodiment, the protective net 13 includes the steel net 131, the gauze 132, and the waterproof membrane 133. The side of the steel net 131 facing the opening of the pressure relief hole 1008, that is, the side of the steel net 131 close to the pressure relief hole 1008 (also referred to as the side close to the housing assembly 10), is provided with the gauze 132. Based on this, the gauze 132 can effectively prevent external particulate factors from entering the pressure relief hole 1008, thereby effectively protecting the air conduction speaker 12 from damage. Furthermore, a waterproof membrane 133 is provided on the side of the gauze 132 facing the open opening of the pressure relief hole 1008, i.e., the side of the gauze 132 close to the pressure relief hole 1008 (also referred to as the side close to the housing assembly 10). This waterproof membrane 133 effectively prevents sweat, rain, and other adverse external factors from entering the second accommodating chamber 1002 through the pressure relief hole 1008, thereby effectively protecting the air conduction speaker 12 and effectively improving the sound stability of the earphone 100. Optionally, in one embodiment, at least two layers of waterproof membrane 133 are provided on the side of the gauze 132 facing the open opening of the pressure relief hole 1008, thereby effectively improving the protective performance of the protective net 13.

[0111] Optionally, the mesh of the steel mesh 131 is smaller than the mesh of the gauze mesh 132. Based on this, the wind noise of the pressure relief hole 1008 can be effectively reduced, thereby effectively improving the sound quality of the earphone 100.

[0112] The above descriptions are only some embodiments of the present application and do not limit the scope of protection of the present application. Any equivalent device or equivalent process transformation made using the contents of the description and drawings of this application, or directly or indirectly applied in other related technical fields, are also included in the scope of patent protection of this application.

[0113] The above are merely embodiments of the present application and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A headset, characterized in that: The earphone comprises: A shell assembly, wherein the shell assembly is provided with a receiving cavity and a pressure relief hole for connecting the receiving cavity with the external environment, and the opening of the pressure relief hole is arranged at the bottom of the shell assembly along the height direction; A speaker is disposed in the accommodating cavity; A protective net is connected to the shell component and covers the opening of the pressure relief hole; when projected along the height direction, the length of the projection of the protective net is more than 0.4 times the length of the projection of the shell component.

2. The earphone according to claim 1, characterized in that The protective net includes a first portion which is lower in the height direction and a second portion which extends away from the first portion; as the second portion gradually moves away from the first portion, the second portion gradually becomes higher than the first portion along the height direction.

3. The earphone according to claim 1, characterized in that The area of ​​the protective net is more than 1.5 times the area of ​​the opening.

4. The earphone according to claim 1, characterized in that The shell assembly is provided with a first recessed portion, the first recessed portion is communicated with the pressure relief hole, and the protective net also covers the opening of the first recessed portion.

5. The earphone according to claim 4, characterized in that: The first recessed portion extends away from the pressure relief hole; as the first recessed portion gradually moves away from the pressure relief hole, the first recessed portion gradually becomes higher than the opening of the pressure relief hole along the height direction.

6. The earphone according to claim 5, characterized in that The protective net comprises a first portion which is lower in the height direction and a second portion which extends away from the first portion; as the second portion gradually moves away from the first portion, the second portion gradually becomes higher than the first portion in the height direction; The second portion covers at least a portion of the opening of the first recess.

7. The earphone according to claim 4, characterized in that The housing assembly includes a support member, which separates an opening of the pressure relief hole from an opening of the first recessed portion, and the support member supports the protective net.

8. The earphone according to claim 1, characterized in that The shell component is provided with a sound receiving hole, and the sound receiving hole is arranged adjacent to the opening of the pressure relief hole, and the protective net also covers the sound receiving hole.

9. The earphone according to claim 8, characterized in that The opening of the sound receiving hole is higher than the opening of the pressure relief hole.

10. The earphone according to claim 9, characterized in that The protective net comprises a first portion which is lower in the height direction and a second portion which extends away from the first portion; as the second portion gradually moves away from the first portion, the second portion gradually becomes higher than the first portion in the height direction; The second portion covers the opening of the sound receiving hole.

11. The earphone according to claim 8, characterized in that The sound receiving hole is formed on the supporting wall, and the protective net is arranged in close contact with the supporting wall.

12. The earphone according to claim 1, characterized in that The housing assembly is provided with a second recessed portion, and the protective net is arranged in the second recessed portion.

13. The earphone according to claim 1, characterized in that The protective net includes a steel net, a gauze net and a waterproof membrane. The gauze net is provided on the open side of the steel net facing the pressure relief hole, and the waterproof membrane is provided on the open side of the gauze net facing the pressure relief hole.

14. The earphone according to claim 13, characterized in that The mesh openings of the steel mesh are smaller than the mesh openings of the gauze mesh.

15. An earphone, characterized in that: The earphone comprises: A shell assembly, wherein the shell assembly is provided with a receiving cavity, and the shell assembly is provided with a pressure relief hole for connecting the receiving cavity with the external environment, and the opening of the pressure relief hole is arranged at the bottom of the shell assembly along the height direction; A speaker is disposed in the accommodating cavity; The first annular protrusion is arranged around the opening of the pressure relief hole and extends downward from the bottom of the shell component.

16. The earphone according to claim 15, characterized in that The first annular protrusion is a metal ring or a plastic ring, which is bonded to the bottom of the housing component.

17. The earphone according to claim 15, characterized in that The first annular protrusion and a portion of the housing assembly are integrally formed structures.

18. The earphone according to claim 15, characterized in that It also includes a protection net, which covers the opening of the pressure relief hole; in the height direction, the protection net is higher than the bottom surface of the first annular protrusion.

19. The earphone according to claim 15, characterized in that The inner side surface of the first annular protrusion includes an annular supporting surface, and the annular supporting surface is connected to the protective net; in the height direction, the bottom surface of the protective net is flush with the bottom surface of the first annular protrusion.

20. The earphone according to claim 19, characterized in that The first annular protrusion includes a first portion and a second portion connected to the first portion, and the first portion is connected to the bottom of the housing assembly; The cross-sectional dimension of the internal passage of the first part is smaller than the cross-sectional dimension of the internal passage of the second part, and the transition between the first part and the second part forms the annular supporting surface.

21. The earphone according to claim 20, characterized in that An annular groove is arranged on the outer edge of the annular supporting surface, and an adhesive is arranged in the annular groove.

22. The earphone according to claim 15, characterized in that: The protective net includes a steel net, a gauze net and a waterproof membrane. The gauze net is provided on the open side of the steel net facing the pressure relief hole, and the waterproof membrane is provided on the open side of the gauze net facing the pressure relief hole.

23. The earphone according to any one of claims 1-14 or 15-22, characterized in that: The accommodating cavity includes a first accommodating cavity and a second accommodating cavity which are isolated from each other; the speaker includes a bone conduction speaker and an air conduction speaker, the bone conduction speaker is arranged in the first accommodating cavity, and the air conduction speaker is arranged in the second accommodating cavity.

24. The earphone according to claim 23, characterized in that The pressure relief hole is arranged so that the opening extends toward the side where the first accommodating cavity is located.

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