Earphone

Abstract

The invention discloses 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

Technical Field

[0001] The present application relates to the technical field of sound-generating instruments, and in particular to an earphone. Background Art

[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 principle of air conduction sound transmission has been widely used in headphones. Headphones that use air conduction sound transmission have the characteristics of high sound quality and are therefore loved by the majority of users. Generally, the existing protection schemes for the pressure relief holes of air conduction speakers are missing or relatively simple. The pressure relief holes serve as working holes that connect the external environment of the headphones and the cavity of the air conduction speaker. The stability of the pressure relief function will directly affect the sound quality of the air conduction speaker. Due to the lack of or relatively simple protection schemes for the pressure relief holes of the air conduction speakers in the current headphone structure, extreme phenomena such as blockage of the pressure relief holes or damage to the air conduction speakers often occur, greatly affecting the user experience. Summary of the invention

[0003] The present application provides an earphone, which includes: a shell assembly, a speaker, and a protective net. The shell assembly is provided with a receiving cavity, and 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 provided at the bottom of the shell assembly along the height direction; the speaker is provided in the receiving cavity; the protective net is connected to the shell assembly and covers the opening of the pressure relief hole; and the length of the projection of the protective net is projected along the height direction, and is more than 0.4 times the length of the projection of the shell assembly.

[0004] In some embodiments, the protective net includes a first portion that is lower in the height direction 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 the height direction.

[0005] In some embodiments, the area of ​​the protective net is more than 1.5 times the area of ​​the opening.

[0006] In some embodiments, 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.

[0007] 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.

[0008] In some embodiments, the protective net includes a first portion that is lower in the height direction 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 along the height direction; and the second portion covers at least a portion of the opening of the first recessed portion.

[0009] 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.

[0010] In some embodiments, the shell assembly is provided with a sound receiving hole, 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.

[0011] In some embodiments, the opening of the sound receiving hole is higher than the opening of the pressure relief hole.

[0012] 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.

[0013] In some embodiments, the sound receiving hole is formed on the supporting wall, and the protective net is arranged in close contact with the supporting wall.

[0014] In some embodiments, the housing assembly is provided with a second recessed portion, and the protective net is provided in the second recessed portion.

[0015] In some embodiments, the protective net includes a steel net, a gauze net and a waterproof membrane, the steel net is provided with a gauze net on the side facing the opening of the pressure relief hole, and the waterproof membrane is provided on the side facing the opening of the pressure relief hole.

[0016] In some embodiments, the mesh openings of the steel mesh are smaller than the mesh openings of the gauze mesh.

[0017] 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.

[0018] In some embodiments, the pressure relief hole is configured to extend toward a side where the first accommodating cavity is located.

[0019] The beneficial effect of the present application is that through this setting method, the overall size area of ​​the protective net can be effectively increased, reducing the risk of external adverse factors such as sweat and rain forming a water film on the protective net and clogging the pressure relief holes, thereby effectively ensuring that the pressure relief holes can perform pressure relief work normally, thereby effectively improving the stability of the sound of the earphones.

[0020] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. 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 creative work.

[0022] Figure 1 is a schematic diagram of the overall assembly three-dimensional structure of an earphone embodiment of the present application;

[0023] Figure 2 yes Figure 1 A schematic diagram of the three-dimensional structure of a speaker assembly and a partial wearing assembly is shown;

[0024] Figure 3 yes Figure 2 An exploded schematic diagram of the structure of the loudspeaker assembly shown;

[0025] Figure 4 yes Figure 2 An exploded schematic diagram of the structure of the air conduction loudspeaker shown;

[0026] Figure 5 yes Figure 2 A schematic cross-sectional view of the structure of the air conduction loudspeaker shown;

[0027] Figure 6 yes Figure 4 A schematic diagram of the three-dimensional structure of the magnetic conductive cover shown;

[0028] Figure 7 yes Figure 4 A schematic diagram of the three-dimensional structure of the magnetic conductive plate shown;

[0029] Figure 8 yes Figure 6 A line graph showing the relationship between the preset ratio of the total area of ​​the weight-reducing structure on the magnetic shield to the total area of ​​the magnetic shield and the weight change of the speaker assembly and the sensitivity change of the air conduction speaker;

[0030] Fig. 9 yes Figure 4 A schematic diagram of the three-dimensional structure of the magnet shown;

[0031] Fig.10 yes Figure 2 An exploded schematic diagram of a first embodiment of a pressure relief hole protection solution for a loudspeaker assembly is shown;

[0032] Fig.11 yes Fig.10 A schematic structural diagram of a first embodiment of a pressure relief hole protection solution for a loudspeaker assembly after partial assembly of the structure;

[0033] Fig.12 yes Fig.10A schematic diagram of the three-dimensional structure of the protective net shown;

[0034] Fig.13 yes Figure 2 A front view schematic diagram of a second embodiment of a pressure relief hole protection solution for a loudspeaker assembly;

[0035] Fig.14 yes Fig.13 The cross-sectional structure schematic diagram of the embodiment of area A shown in FIG.

[0036] Fig.15 yes Fig.13 The cross-sectional structure schematic diagram of another embodiment of area A is shown. DETAILED DESCRIPTION

[0037] 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 in conjunction with the accompanying drawings and specific implementation methods. It can be understood 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 the field without making creative work are within the scope of protection of this application.

[0038] The terms "first", "second", etc. in this application are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes steps or units that are not listed, or optionally includes other steps or units inherent to these processes, methods, products or devices.

[0039] The present application proposes a wearable electronic device, wherein the wearable device includes a core component. The wearable electronic device includes headphones, glasses, AR (augmented reality) devices or VR (virtual reality) devices, etc. The following describes an exemplary structure of the wearable device through the actual application of the wearable electronic device of the present application in headphones.

[0040] like Figure 1As shown, 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 may be two. The two speaker assemblies 1 are respectively used to transmit vibration and / or sound to the left ear and the right ear of the user. The two speaker assemblies 1 may be the same or different. For example, one speaker assembly 1 may be provided with a microphone, while the other speaker assembly 1 may not be provided with a microphone. For another example, one speaker assembly 1 may be provided with a button and a corresponding circuit board, while the other speaker assembly 1 may not be provided with the button and the corresponding circuit board. The two speaker assemblies 1 may adopt the same configuration in terms of the movement module (such as a speaker module). The speaker assembly 1 described later in this article may be considered to be described in detail by taking one of the two speaker assemblies 1 as an example. The number of ear hook assemblies 2 may be two, and the two ear hook assemblies 2 may be respectively hung on the left ear and the right ear of the user, so that the speaker assembly 1 can fit the user's face. For example, one ear hook assembly 2 may be provided with a battery, and the other ear hook assembly 2 may 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, and 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.

[0041] The following content mainly describes the structure of the speaker assembly 1 and the like of the earphone 100. In some embodiments, the speaker assembly 1 may also be referred to as a core assembly.

[0042] Alternatively, if Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the speaker assembly 1 includes a housing assembly 10 , a bone conduction speaker 11 and an air conduction speaker 12 .

[0043] The housing assembly 10 is provided with a first accommodating chamber 1001 and a second accommodating chamber 1002; the bone conduction speaker 11 is provided in the first accommodating chamber 1001; and the air conduction speaker 12 is provided in the second accommodating chamber 1002. The air conduction speaker 12 includes: a magnetic circuit system 1260. The magnetic circuit system 1260 includes a magnet 1210 and a magnetic conductive component 1220, the magnet 1210 is fixed on the magnetic conductive component 1220, the magnetic conductive component 1220 is fixed in the second accommodating chamber 1002, and a weight reduction structure 1223 is provided on the magnetic conductive component 1220.

[0044] Specifically, in one embodiment, the bone conduction speaker 11 and the air conduction speaker 12 are simultaneously arranged in the same housing assembly 10, and the bone conduction speaker 11 drives the speaker assembly 1 to vibrate as a whole when working to transmit the sound to the user's ear. The air conduction speaker 12 includes a magnetic circuit system 1260, and the magnetic circuit system 1260 includes a magnet 1210 and a magnetic conductive component 1220. Further, a weight reduction structure 1223 is provided on the magnetic conductive component 1220, wherein the weight reduction 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 effectively improving the working stability of the bone conduction speaker 11. In addition, since the bone conduction speaker 11 needs to drive the speaker assembly 1 to vibrate as a whole to transmit the sound to the user's ear when working, reducing the overall weight of the speaker assembly 1 can improve the working sensitivity of the bone conduction speaker 11, thereby effectively improving the sound transmission quality of the bone conduction speaker 11, thereby effectively improving the sound quality of the earphone.

[0045] Optionally, the weight reduction structure 1223 includes at least one of a groove and a through hole provided on the magnetic conductive component 1220. In some embodiments, a through hole or a groove can be provided on the magnetic conductive component 1220 to serve as the weight reduction structure 1223 of the magnetic conductive component 1220, or both a through hole and a groove can be provided as the weight reduction structure 1223 of the magnetic conductive component 1220. For example, in one embodiment, the weight reduction structure 1223 is implemented by providing a through hole on the magnetic conductive component 1220, thereby effectively reducing the overall weight of the speaker assembly 1.

[0046] Optionally, the magnetic induction intensity at the position where the weight-reducing structure 1223 is provided on the magnetic conductive component 1220 is smaller than the magnetic induction intensity at other positions. By providing a groove and / or a through hole at a position where the magnetic induction intensity is smaller on the magnetic conductive component 1220, the influence of the groove or through hole provided on the magnetic conductive component 1220 on the magnetic conductive function of the magnetic conductive component 1220 can be minimized, thereby ensuring that the overall weight of the speaker assembly 1 is effectively reduced while minimizing the influence on the magnetic conductive function of the magnetic conductive component 1220.

[0047] Optionally, the magnetic conductive assembly 1220 includes a magnetic conductive cover 1221 and a magnetic conductive plate 1222, the magnet 1210 is fixed in 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, and there may be one or more weight reduction structures 1223 on the magnetic conductive cover 1221 and the magnetic conductive plate 1222. When multiple weight reduction structures 1223 are used, the multiple weight reduction structures 1223 are arranged at intervals.

[0048] 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 to the side of the magnet 1210 away from the magnet receiving groove. Figure 5 In one embodiment, one or more weight-reducing structures 1223 described in the above embodiments are disposed on both the magnetic shield 1221 and the magnetic plate 1222. In other embodiments, one or more weight-reducing structures 1223 may be disposed only on the magnetic plate 1222 or the magnetic shield 1221. For example, in one embodiment, a weight-reducing structure 1223 is disposed on the magnetic shield 1221, and a corresponding weight-reducing structure 1223 is disposed on the magnetic 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 earphone.

[0049] Optionally, in one embodiment, the magnetic cover 1221, the magnet 1210 and the magnetic plate 1222 are sequentially arranged in the center along the air conduction working direction X1 of the air conduction speaker 12, based on which the center of gravity of the magnetic component 1220 can be effectively ensured to be centered. The air conduction working direction X1 is the vibration direction of the diaphragm of the air conduction speaker 12 when it is working.

[0050] Alternatively, if Figure 6 As shown, the magnetic cover 1221 includes a bottom wall 1224 and an annular side wall 1225 extending from the bottom wall 1224, and the weight reduction structure 1223b is provided on the bottom wall 1224. Figure 6 In one embodiment, the magnetic cover 1221 includes a bottom wall 1224 and an annular side wall 1225 extending from the bottom wall 1224, wherein the bottom wall 1224 and the annular side wall 1225 are arranged to form the magnet accommodating groove described above. Furthermore, in one embodiment, a weight-reducing structure 1223b is arranged on the bottom wall 1224, for example, a groove or a through hole is arranged on the bottom wall 1224, based on which the material usage of the bottom wall 1224 can be effectively reduced, thereby effectively reducing the weight of the magnetic cover 1221, thereby reducing the weight of the air conduction speaker 12, effectively improving the working stability of the bone conduction speaker 11, and thereby effectively improving the sound quality of the earphone.

[0051] Optionally, see further Figure 5 and Figure 6 , the weight-reducing structure 1223b is centrally provided on the bottom wall 1224. Specifically, the weight-reducing structure 1223b on the magnetic cover 1221 is centrally provided on the bottom wall 1224 of the magnetic cover 1221, and the magnetic induction intensity at the middle position of the bottom wall 1224 of the magnetic cover 1221 is smaller than the magnetic induction intensity at other positions. Therefore, the weight-reducing structure 1223b is centrally provided on the bottom wall 1224, which can effectively reduce the influence of the weight-reducing structure 1223b on the magnetic function of the magnetic component 1220, and can also effectively ensure the center of gravity of the magnetic cover 1221 is centered, thereby effectively improving the working stability of the bone conduction speaker 11, and further effectively improving the sound quality of the earphone.

[0052] It is understandable that in some other embodiments of the present application, the weight reduction structure 1223 b may also be disposed at other positions on the bottom wall 1224 of the magnetic conductive cover 1221 .

[0053] Alternatively, see Figure 5 and Figure 7 , the weight-reducing structure 1223a is centrally arranged on the magnetic conductive plate 1222. Specifically, the weight-reducing structure 1223a on the magnetic conductive plate 1222 is centrally arranged on the magnetic conductive plate 1222, wherein the centers of gravity of the parts of the air conduction speaker 12 such as the magnetic conductive plate 1222, the magnetic conductive cover 1221, and the magnet 1210 are generally centrally arranged and are located on the same straight line along the air conduction working direction X1, based on which it can be ensured that the center of gravity of the air conduction speaker 12 is approximately located at the geometric center of the air conduction speaker 12, wherein the central arrangement of the weight-reducing structure 1223a can effectively prevent the weight-reducing structure 1223a from affecting the displacement of the center of gravity of the magnetic conductive plate 1222, resulting in the occurrence of the phenomenon of the displacement of the center of gravity of the air conduction speaker 12, thereby effectively improving the working stability of the bone conduction speaker 11, and further effectively improving the sound quality of the earphone. 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 disposed 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.

[0054] Optionally, the total area of ​​the weight-reducing structure 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; the total area of ​​the weight-reducing structure 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 the position where the weight-reducing structure is located is smaller than that at other positions, thereby reducing the weight of the air conduction speaker 12 while reducing the influence of the weight-reducing structure 1223a on the magnetic conduction function of the magnetic conduction component 1220.

[0055] Specifically, see Figure 5 , Figure 6 and Figure 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 which 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 reduction structure 1223a on the magnetic conductive plate 1222 is the total area enclosed by the outer edge contour 1222b of the weight reduction structure 1223a. The total area of ​​the weight reduction structure 1223a on the magnetic conductive plate 1222 accounts for less than or equal to 50% of the area of ​​the magnetic conductive plate 1222, based on which the weight of the magnetic conductive plate 1222 can be effectively reduced without affecting the magnetic conductive function of the magnetic conductive plate 1222. In some embodiments, if a plurality of weight reduction structures 1223b are provided on the magnetic conductive cover 1221, the total area of ​​the weight reduction structure 1223b on the magnetic conductive cover 1221 is the sum of the areas of each weight reduction structure 1223b. Similarly, if a plurality of weight-reducing structures 1223a are disposed 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 1223b.

[0056] like Figure 8 As shown, a simulation experiment is conducted by taking the 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 as an example, and the obtained Figure 8The relationship curve Z2 between the preset ratio and the sensitivity change value of the air conduction speaker 12 is shown, and the relationship curve Z1 between the preset ratio and the weight change value of the speaker assembly 1 is obtained. Referring to the relationship curve Z1, the weight change value of the speaker assembly 1 increases as the preset ratio increases and the thickness of the bottom wall 1224 decreases, that is, the weight of the speaker assembly 1 decreases as the preset ratio increases and the thickness of the bottom wall 1224 decreases. Referring to the relationship curve Z2, the sensitivity change value of the air conduction speaker 12 has a tendency to increase slightly and then decrease as the preset ratio increases when the thickness of the bottom wall 1224 is the same. Therefore, selecting a preset ratio of less than or equal to 50% can effectively ensure the weight reduction effect of the speaker assembly 1 while reducing the influence of the weight reduction structure 1223b on the magnetic conductivity function of the magnetic cover 1221. In addition, it can be seen that under the same thickness of the bottom wall 1224, the preset ratio is less than or equal to 30%, which can enable the speaker assembly 1 to obtain a better weight reduction effect without having a small influence on the magnetic conductivity function of the magnetic cover 1221. The magnetic plate 1222 can also obtain the corresponding experimental data through the above-mentioned simulation experiment, and it can be obtained that when the preset ratio is less than or equal to 30%, the speaker assembly 1 can obtain a better weight reduction effect under the premise of having little impact on the magnetic function of the magnetic plate 1222. In the following, the magnet 1210 is also similar, and will not be described in detail in this article.

[0057] Optionally, in some embodiments, the preset ratio may also 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 structure 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, based on which the weight of the magnetic cover 1221 can be effectively reduced without affecting the magnetic conductivity of the magnetic cover 1221. The total area of ​​the weight-reducing structure 1223a on the magnetic plate 1222 accounts for less than 50% of the area of ​​the magnetic plate 1222, based on which the weight of the magnetic plate 1222 can be effectively reduced without affecting the magnetic conductivity of the magnetic plate 1222.

[0058] In some embodiments, only one of the magnetic conductive plate 1222 and the magnetic conductive cover 1221 is provided with the above-mentioned weight reduction structure 1223, wherein the ratio of the total area of ​​the weight reduction structure 1223 to the area of ​​the bottom wall 1224 of the magnetic conductive plate 1222 or the magnetic conductive cover 1221 can be referred to the above content, and will not be repeated in detail here.

[0059] Optionally, see further Figure 6, the plane shape of the weight-reducing structure 1223b is the same as the plane shape of the bottom wall 1224 of the magnetic cover 1221, and they are proportionally reduced. Specifically, the plane shape of the weight-reducing structure 1223b is the same as the plane shape of the bottom wall 1224 of the magnetic cover 1221, and they are proportionally reduced. It can be understood that the plane 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 plane shape of the bottom wall of the magnetic cover 1221 perpendicular to the air conduction working direction X1, and they are 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 plane shape of the weight-reducing structure 1223b on the magnetic cover 1221 perpendicular to the air conduction working direction X1 and the plane shape of the bottom wall of the magnetic cover 1221 perpendicular to the air conduction working direction X1 may also be different.

[0060] Optionally, see further Figure 7 , the plane shape of the weight-reducing structure 1223a on the magnetic conductive plate 1222 perpendicular to the air conduction working direction X1 is the same as the plane shape of the magnetic conductive plate 1222 perpendicular to the air conduction working direction X1, and is proportionally reduced, based on which the center of gravity of the magnetic conductive plate 1222 can be effectively ensured. Among them, for example, in one embodiment, the weight-reducing structure 1223b having the same plane shape as the magnetic conductive cover 1221 and proportionally reduced is centrally arranged on the magnetic conductive cover 1221, and the weight-reducing structure 1223a having the same plane shape as the magnetic conductive plate 1222 and proportionally reduced is centrally arranged on the magnetic conductive plate 1222, based on which the center of gravity of the air conduction speaker 12 can be effectively ensured, and the weight of the speaker assembly 1 can be effectively reduced, thereby effectively improving the sound quality of the earphone. It is understandable that in other embodiments of the present application, the planar shape of the weight reduction 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.

[0061] Alternatively, see Figure 5 and Fig. 9 The magnet 1210 may be provided with a weight-reducing structure 1223c, which is a groove or a through hole. In one embodiment, the weight-reducing structure 1223c is a through hole. Based on this, the weight of the speaker assembly 1 can be further reduced, thereby effectively improving the sound quality of the earphone.

[0062] Optionally, the magnetic induction intensity at the position where the weight-reducing structure 1223c on the magnet 1210 is located is less than the magnetic induction intensity at other positions. Specifically, the magnetic induction intensity at the position where the weight-reducing structure 1223c is located on the magnet 1210 is less than the magnetic induction intensity at other positions. Based on this setting, the overall weight of the speaker assembly 1 can be effectively reduced without affecting the magnetic conductivity of the magnetic conductive component 1220.

[0063] Optionally, see further Figure 5 and Fig. 9 , the weight-reducing structure 1223c on the magnet 1210 is located at the center of the magnet 1210, and the plane shape of the weight-reducing structure 1223c on the magnet 1210 is the same as the plane shape of the magnet 1210, and is proportionally reduced. Specifically, the plane shape of the weight-reducing structure 1223c on the magnet 1210 is the same as the plane shape of the magnet 1210, and is proportionally reduced. It can be understood that the plane shape of the weight-reducing structure 1223c on the magnet 1210 perpendicular to the air conduction working direction X1 is the same as the plane 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 centration of the center of gravity of the air conduction speaker 12, and can also effectively reduce the weight of the speaker assembly 1, thereby effectively improving the sound quality of the earphone.

[0064] Optionally, the plane area of ​​the weight-reducing structure 1223c on the magnet 1210 accounts for a smaller than preset ratio of the plane area of ​​the magnet 1210, wherein in one embodiment, the preset ratio is 50%, and in other embodiments, the preset ratio may also be other values. The plane area of ​​the weight-reducing structure 1223c is the area enclosed by the outer edge contour 1210b of the weight-reducing structure 1223c, and the plane area of ​​the magnet 1210 is the area enclosed by the outer edge contour 1210a of the magnet, based on which the weight of the magnet 1210 can be effectively reduced without affecting the magnetic conductivity of the magnet 1210.

[0065] 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 in a hollow state. In this way, the weight-reducing effect can be fully achieved.

[0066] Alternatively, see Figure 4 and Figure 5 The air conduction speaker 12 further includes a holding component 1230, which is fixed to the magnetic component 1220, and the holding component 1230 is fixedly connected to the housing component 10. The magnetic component 1220 provided with the magnet 1210 is fixedly connected to the housing component 10 through the holding component 1230, so that the magnetic component 1220 is easily fixed in the housing component 10, and the connection stability between the magnetic component 1220 and the housing component 10 is improved, and the vibration of the magnetic component 1220 relative to the housing component 10 is reduced, thereby effectively improving the working stability of the air conduction speaker 12, thereby effectively improving the sound quality of the earphone.

[0067] Alternatively, see Figure 4 and Figure 5The 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 holding component 1230, and the voice coil 1250 is connected to the diaphragm 1240. Specifically, in one embodiment, the voice coil 1250 component is disposed around the outer periphery of the magnet 1210 and the magnetic conductive plate 1222, the edge of the diaphragm 1240 is connected to the periphery of the holding component 1230, and the voice coil 1250 is connected to the diaphragm 1240. For example Figure 4 and Figure 5 As shown, in one embodiment, the holding assembly 1230 includes a holding ring 1231 and a holding body 1232, wherein the holding ring 1231 is sleeved on the outer peripheral side of the annular side wall 1225 of the magnetic cover 1221 and is located between the inner side wall of the holding body 1232 and the outer peripheral side of the annular side wall 1225, based on which the holding 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 fixing component 1230 and the magnetic cover 1221, the fixing ring 1231 can be directly mounted on the outer peripheral side of the annular side wall 1225 of the magnetic cover 1221, and then the magnetic cover 1221 with the fixing ring 1231 can be pushed into the inner peripheral side of the fixing body 1232 along the air conduction working direction X1, so that the magnetic cover 1221 can be quickly fixed on the fixing component 1230. Based on this, the magnetic cover 1221 and the fixing body 1232 can maintain a stable fixed connection, and at the same time, the assembly efficiency of the air conduction speaker 12 can be effectively improved.

[0068] Alternatively, see Fig.10 and Fig.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, and 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, and 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 with the second accommodating chamber 1002 toward the side where the first accommodating chamber 1001 is located. For example, part of the hole wall of the pressure relief hole 1008 extends from the connection with the second accommodating chamber 1002 toward the side where the first accommodating chamber 1001 is located. By this arrangement, the space of the housing outside the first accommodation chamber 1001 occupied by the pressure relief hole 1008 can be effectively reduced, and the space between the first accommodation chamber 1001 and the second accommodation chamber 1002 can be effectively used, thereby improving the space utilization rate of the housing assembly 10, so that the housing assembly 10 can be arranged more compactly and reasonably under the premise of meeting the sound conditions of the air conduction speaker 12. Moreover, such an inclined extension can increase the size of the pressure relief hole 1008, so that the air conduction speaker 12 can be provided with better sound quality.

[0069] Optionally, see further Figure 2 and Figure 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 part of the second accommodating chamber 1002, and the housing 103 may form another part of the second accommodating chamber 1002, and then the housing 103 cooperates with the housing 101 and / or the housing 102 to form the second accommodating chamber 1002.

[0070] The housing assembly 10 may be composed of a housing 101, a housing 102, and a housing 103, wherein the housing 101 and the housing 102 cooperate to form a first accommodation cavity 1001, and the housing 103 cooperates with the housing 101 to form a second accommodation cavity 1002. The housing assembly 10 is composed of the housing 101, the housing 102, and the housing 103 of the above structure, which can make the structure of the speaker assembly 1 compact and facilitate the assembly of the speaker assembly 1, so as to improve the assembly efficiency of the speaker assembly 1. In some embodiments, the housing 101 may be called a first housing; the housing 102 may be called a second housing; and the housing 103 may be called a third housing.

[0071] The housing assembly 10 may include a housing 101, a housing 102, and a housing 103. The partition wall 1012 may be disposed 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 accommodation chamber 1001 and the pressure relief hole 10081. For example, the housing 101 and / or the housing 102 further form a part of the second accommodation chamber 1002. For example, the housing 103 may form another part of the second accommodation chamber 1002, and the housing 103 cooperates with the housing 101 and / or the housing 102 to form the second accommodation chamber 1002. Among them, the partition wall 1012 is disposed on the housing 101 and / or the housing 102, which can be understood as the partition wall 1012 belonging to a part of the housing 101 and / or the housing 102. Of course, the partition wall 1012 is not limited to being disposed on the housing 101 and / or the housing 102 . In other embodiments, the partition wall 1012 may also be a component that is independent of the housing 101 and / or the housing 102 .

[0072] like Figure 3As shown, the partition wall 1012 is arranged on the housing 101, and 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, and 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 with the wall surface of the partition wall 1012. The housing 102 is provided with a sub-accommodating chamber 1020, and the housing 102 covers the open end of the sub-accommodating chamber 1010, and the sub-accommodating chamber 1020 cooperates with the sub-accommodating chamber 1010 to form the first accommodating chamber 1001. The housing 103 is provided with a sub-accommodating chamber 1030, and the housing 103 is covered at the open end of the sub-accommodating chamber 1011, and the sub-accommodating chamber 1030 cooperates with the sub-accommodating chamber 1011 to form the second accommodating chamber 1002. In some embodiments, the sub-accommodating chamber 1010 may also be referred to as the first sub-accommodating chamber; the sub-accommodating chamber 1011 may also be referred to as the second sub-accommodating chamber; the sub-accommodating chamber 1020 may also be referred to as the third sub-accommodating chamber; and the sub-accommodating chamber 1030 may also be referred to as the fourth sub-accommodating chamber.

[0073] 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 to intersect 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.

[0074] Alternatively, if Figure 3 , Fig.10 , Fig.11 and 12 As shown, the present application also proposes a first embodiment of a protection scheme for the pressure relief hole 1008 for protecting the pressure relief hole 1008. The first embodiment of the protection scheme for the pressure relief hole 1008 is applicable to the earphone 100 provided with both the bone conduction speaker 11 and the air conduction speaker 12, and can also be applicable to the earphone 100 provided with the air conduction speaker 12 alone. Here, the present application mainly describes the first embodiment of the protection scheme for the pressure relief hole 1008 by the earphone 100 provided with both the air conduction speaker 12 and the bone conduction speaker 11 in the above-mentioned manner. The first embodiment of the protection scheme for the pressure relief hole 1008 is as follows.

[0075] 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, and 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 arranged in the receiving cavity; the protective net 13 is connected to the housing assembly 10 and covers the opening of the pressure relief hole 1008; and the length L1 of the projection of the protective net 13 is more than 0.4 times the length L2 of the projection of the housing assembly 10 when projected along the height direction G1.

[0076] Specifically, Figure 3 and Fig.10 As shown, 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 that are 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 arranged in the second housing cavity 1002, and the bone conduction speaker 11 is arranged 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 an air conduction speaker 12, and will not be described in detail herein.

[0077] like Fig.10 and Fig.11 As shown, the housing assembly 10 is provided with a pressure relief hole 1008 for the air conduction speaker 12 to relieve pressure, and the pressure relief hole 1008 is connected to the accommodating cavity and the external environment. It can be understood that the pressure relief hole 1008 is connected to the second accommodating cavity 1002 for accommodating the air conduction speaker 12 and the external environment. Among them, the other relative positional relationships between the pressure relief hole 1008 and the accommodating cavity are described in the above content, and will not be described in detail here.

[0078] 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 gravity direction, and the bottom 104 of the shell assembly 10 is located at the bottom in the height direction G1 or the gravity direction. 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, rain and other external adverse factors from entering the accommodating cavity along the opening of the pressure relief hole 1008, thereby effectively preventing sweat, rain 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 further includes a protective net 13 for blocking external adverse factors such as sweat, rain, and sand, and the protective net 13 is connected to the housing assembly 10 and covers the opening of the pressure relief hole 1008, wherein the projection length L1 of the protective net 13 along the height direction G1 is more than 0.4 times the projection length L2 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 sweat, rain and other adverse external factors 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 in a curved shape, its actual length can be greater than its projected length L1. Among them, 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 follows.

[0079] Alternatively, if Fig.12 As shown, 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 higher than the first portion 13a along the height direction G1. In this way, the protective net 13 can be curved, and thus can adapt to the shape of the housing assembly 10.

[0080] 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 arranged to be curved, 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 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.

[0081] Optionally, see further Fig.10 and Fig.11 , the housing assembly 10 is provided with a first recessed portion 1004, the first recessed portion 1004 is connected to the pressure relief hole 1008, and the protective net 13 also covers the opening of the first recessed portion 1004. Specifically, the housing assembly 10 is also provided with a first recessed portion 1004, wherein the first recessed portion 1004 is connected to the pressure relief hole 1008, wherein 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 which the first recessed portion 1004 can be used as an auxiliary pressure relief hole of the air conduction speaker 12, which can effectively increase the pressure relief area of ​​the pressure relief hole, and 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 of the earphone 100, thereby effectively improving the working stability of the earphone 100.

[0082] 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 the arrangement direction X2 which 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 which the first recessed portion 1004 can be effectively prevented from being blocked or immersed by external factors such as sweat and rain, thereby effectively improving the working stability of the air conduction speaker 12.

[0083] Alternatively, see Fig.10 , Fig.11and Fig.12 The protective net 13 includes a first portion 13a which is lower in the height direction G1 and a second portion 13b which 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 higher 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 recessed portion 1004. Specifically, the protective net 13 is configured to be curved based on the above 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 in 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 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 to form 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.

[0084] Alternatively, if Fig.10 and Fig.11 As shown, 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 disposed 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 which the protective net 13 can be effectively prevented from collapsing due to 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, and in other embodiments, the support member 1005 can be an independent component connected to the housing assembly 10 through a connector such as glue.

[0085] Alternatively, if Fig.10 and Fig.11As shown, the shell assembly 10 is provided with a sound receiving hole 1007, and the sound receiving hole 1007 is arranged 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 example, the user's voice enters the microphone of the earphone 100 along the sound receiving hole 1007) used by the earphone 100 to receive sound information is arranged adjacent to the pressure relief hole 1008, and the protective net 13 also covers the sound receiving hole 1007, and the protective net 13 can effectively protect the sound receiving hole 1007 and prevent the sound receiving hole 1007 from being eroded by external adverse factors such as sweat and rain. Among them, along the projection of the height direction G1, the length L1 of the projection of the protective net 13 is more than 0.4 times the length L2 of the projection of the shell assembly 10, based on which the length of the protective net 13 is long enough, 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.

[0086] Alternatively, if Fig.10 and Fig.11 As shown, along the height direction G1, the opening of the sound receiving hole 1007 is higher than the opening of the pressure relief hole 1008. Based on this, the sound receiving hole 1007 is arranged at a position higher than the bottom of the housing assembly 10 along the height direction G1, which can effectively prevent the sound receiving hole 1007 from being corroded by external adverse factors such as sweat and rain.

[0087] Optionally, the area of ​​the protective net 13 is more than 1.5 times the area of ​​the open opening of the pressure relief hole 1008. For example, the area of ​​the protective net 13 may 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. Based on this setting, it is effectively ensured that the area of ​​the protective net 13 is large enough, thereby reducing the risk of sweat, rain and other external adverse factors forming a water film on the protective net 13 and blocking the pressure relief hole 1008, 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. Based on the above arrangement, the area of ​​the protective net 13 can be set 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.

[0088] Alternatively, if Fig.10 and Fig.11As shown, the protective net 13 includes a first portion 13a which is lower in the height direction G1 and a second portion 13b which 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 higher than the first portion 13a along the height direction G1; the second portion 13b covers the opening of the sound receiving hole 1007. Specifically, the protective net 13 is configured in an arc shape based on the above method. Among them, the second portion 13b which is higher than the first portion 13a covers the opening of the sound receiving hole 1007. 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 the opening of the sound receiving hole 1007 and another part of the opening of the first recessed portion 1004. Based on this, the sound receiving hole 1007, 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 sound receiving hole 1007, 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.

[0089] Alternatively, if Fig.10 and Fig.11 As shown, the sound receiving hole 1007 is formed on the supporting wall 1006, and the protective net 13 is arranged in close contact with the supporting wall 1006. Specifically, the supporting wall 1006 is 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 arranged in close contact with the protective net 13 and supports the protective net 13, thereby effectively preventing the protective net 13 from collapsing under the action of external force 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 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 hole 1007 when performing the pressure relief function.

[0090] Alternatively, if Fig. 9 and Fig.10As shown, 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 integrally recessing a partial area of ​​the bottom of the shell assembly 10 along the height direction G1, and is used to accommodate the protective net 13. The peripheral edge of the second recessed portion 1009 can be further recessed along the height direction G1, so that the peripheral edge of the protective net 13 abuts and is fixedly connected with the peripheral edge of the second recessed portion 1009, for example, by applying glue on the 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 and the outer surface of the shell assembly 10 are smoothly transitioned, thereby effectively improving the smooth shape of the outer contour of the earphone 100.

[0091] Alternatively, if Fig.10 and Fig.11 As shown, the protective net 13 includes 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. Specifically, in one embodiment, the protective net 13 includes a steel net 131, a gauze 132 and a waterproof membrane 133, and 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 shell assembly 10) is provided with the gauze 132, based on which the gauze 132 can effectively prevent external granular factors from entering the pressure relief hole 1008, thereby effectively protecting the air conduction speaker 12 from damage. In addition, a waterproof membrane 133 is provided on the side of the mesh 132 facing the open side of the pressure relief hole 1008, that is, the side of the mesh 132 close to the pressure relief hole 1008 (also referred to as the side close to the housing assembly 10), based on which the waterproof membrane 133 can effectively prevent sweat, rain and other external adverse factors from entering the second accommodating cavity 1002 along 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 membranes 133 are provided on the side of the mesh 132 facing the open side of the pressure relief hole 1008, based on which the protective performance of the protective net 13 can be effectively improved.

[0092] Optionally, the mesh of the steel mesh 131 is smaller than the mesh of the yarn 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.

[0093] Alternatively, if Figure 3 , Fig.13 , Fig.14 and Fig.15As shown, the present application also proposes a second embodiment of the pressure relief hole 1008 protection scheme for protecting the pressure relief hole 1008. Among them, the second embodiment of the pressure relief hole 1008 protection scheme is applicable to the earphone 100 provided with both the bone conduction speaker and the air conduction speaker 12 as mentioned above, and can also be applicable to the earphone 100 provided with the air conduction speaker 12 alone. Here, this article mainly describes the second embodiment of the pressure relief hole 1008 protection scheme of the earphone 100 provided with both the air conduction speaker 12 and the bone conduction speaker in the above manner. The second embodiment of the pressure relief hole 1008 protection scheme is as follows.

[0094] The speaker assembly 1 includes: a housing assembly 10, a speaker, and a first annular protrusion 20. The housing assembly 10 is provided with a receiving cavity, and the housing assembly 10 is provided with a pressure relief hole 1008 for connecting the receiving cavity with the external environment, and the opening of the pressure relief hole 1008 is provided at the bottom 104 of the housing assembly 10 along the height direction G1; the speaker is provided in the receiving cavity; the first annular protrusion 20 is provided around the opening of the pressure relief hole 1008, and extends downward from the bottom 104 of the housing assembly 10.

[0095] Specifically, Figure 3As shown, the accommodating cavity is used to accommodate a speaker. As described above, the accommodating cavity includes a first accommodating cavity 1001 and a second accommodating cavity 1002 that are 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 arranged in the second accommodating cavity 1002, and the bone conduction speaker 11 is arranged in the first accommodating cavity 1001. The specific structure of the housing assembly 10 is described above, and it will not be described in detail here. In other embodiments, the accommodating cavity of the earphone 100 may only be provided with an air conduction speaker 12, which will not be described in detail here. In one embodiment, a pressure relief hole 1008 for pressure relief of a speaker (such as the air conduction speaker 12 in the above embodiment) is provided on the housing assembly 10, and the pressure relief hole 1008 is connected to the accommodating cavity (such as the second accommodating cavity 1002 in the above embodiment) and is connected to the external environment. In other relative positional relationships between the pressure relief hole 1008 and the accommodating cavity, refer to the above description, and it will not be described in detail here. Different from the above-mentioned 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 first annular protrusion 20 extending 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 along the height direction, based on which it can effectively prevent external environmental factors such as sweat and rain from flowing into the pressure relief hole 1008, thereby damaging 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, thereby effectively preventing 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 stability of the sound of the earphone 100.

[0096] 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 through a connector such as glue.

[0097] Optionally, the first annular protrusion 20 and a part of the housing assembly 10 are integrally formed structures. Specifically, in some embodiments, the bottom of the housing assembly 10 and the part located on the open outer peripheral side of the pressure relief hole 1008 protrudes and deforms along the height direction toward the side away from the pressure relief hole 1008 to form the first annular protrusion 20, based on which the first annular protrusion 20 and the housing assembly 10 are integrally formed. 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 formed structure with the housing 101, or the first annular protrusion 20 can be an integrally formed structure with the housing 102; or, a part of the first annular protrusion 20 can be an integrally formed structure with the housing 101, and another part of the first annular protrusion 20 can be an integrally formed structure with the housing 102. Through the integrally formed structure, the manufacturing process of the first annular protrusion 20 can be simplified, the structural strength of the first annular protrusion 20 can be enhanced, and the manufacturing cost can be reduced.

[0098] Alternatively, if Fig.14 As shown, the earphone 100 further includes a protective net 13, which 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 external adverse factors from entering the pressure relief hole 1008. Further, 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, so that the protective net 13 is completely submerged in the area surrounded by the first annular protrusion 20, and the protective net 13 still has a certain height difference, based on which the direct contact between external environmental factors such as rain and sweat and the protective net 13 can be reduced to a certain extent, thereby reducing the possibility of the pressure relief hole 1008 being invaded by external environmental factors such as rain and sweat.

[0099] Alternatively, if Fig.15As shown, in other embodiments, the earphone 100 includes a protective net 13, and the inner side surface of the first annular protrusion 20 includes an annular support surface 24, and the annular support surface 24 is connected to the protective net 13; in the height direction G1, the bottom surface 134 of the protective net 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, and the first portion 22 is connected to the bottom 104 of the housing assembly 10; the cross-sectional dimension of the internal channel of the first portion 22 is smaller than the cross-sectional dimension of the internal channel of the second portion 23, and the transition between the first portion 22 and the second portion 23 forms an annular support surface 24. Among them, the annular support surface 24 protrudes from the pressure relief hole 1008, and 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.

[0100] Alternatively, if Fig.15 As shown, an annular groove 25 is provided at 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 the position of the annular support surface 24 close to the second portion 23, and the annular support surface 24 is formed with an annular groove 25 at this position, wherein an adhesive such as glue is provided in the annular groove 25, and the protective net 13 is connected to the annular support surface 24 through the adhesive, and can be effectively fixedly connected to the annular support surface 24.

[0101] Alternatively, if Fig.14 and Fig.15As shown, the type of the protective net 13 is similar to that of the above-mentioned embodiment, that is, the protective net 13 may include a steel net 131, a gauze 132 and a waterproof membrane 133, and the side of the steel net 131 facing the opening of the pressure relief hole 1008 is provided with a gauze 132, and the side of the gauze 132 facing the opening of the pressure relief hole 1008 is provided with a waterproof membrane 133. In other words, in one embodiment, the protective net 13 includes a steel net 131, a gauze 132 and a waterproof membrane 133, wherein 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 shell assembly 10) is provided with a gauze 132, based on which the gauze 132 can effectively prevent external granular factors from entering the pressure relief hole 1008, thereby effectively protecting the air conduction speaker 12 from damage. In addition, a waterproof membrane 133 is provided on the side of the mesh 132 facing the open side of the pressure relief hole 1008, that is, the side of the mesh 132 close to the pressure relief hole 1008 (also referred to as the side close to the housing assembly 10), based on which the waterproof membrane 133 can effectively prevent sweat, rain and other external adverse factors from entering the second accommodating cavity 1002 along 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 membranes 133 are provided on the side of the mesh 132 facing the open side of the pressure relief hole 1008, based on which the protective performance of the protective net 13 can be effectively improved.

[0102] Optionally, the mesh of the steel mesh 131 is smaller than the mesh of the yarn 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.

[0103] The above descriptions are only some embodiments of the present application, and do not limit the protection scope of the present application. Any equivalent device or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

[0104] 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. The earphone according to any one of claims 1 to 14, 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.

16. The earphone according to claim 15, characterized in that The pressure relief hole is arranged to extend toward the side where the first accommodating cavity is located.

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