Earphone

Abstract

The utility model discloses an earphone, which comprises a movement shell, and a loudspeaker assembly and a key assembly which are arranged in the movement shell, the loudspeaker assembly comprises a main loudspeaker and a sound cavity support, the sound cavity support and the main loudspeaker are matched to form an acoustic rear cavity, and the key assembly is supported on the sound cavity support. The movement shell is provided with a key part used for pressing and triggering the key assembly. Through the mode, the internal space of the earphone can be saved, the size of the earphone is reduced, and the space utilization rate is improved.

Description

Technical Field

[0001] The present application relates to the technical field of electronic devices, and in particular to headphones. Background Art

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

[0003] Conventional earphones are usually provided with buttons for users to press and control the earphones, but the arrangement of the buttons and structures related to the buttons will make the size of the earphones larger. Utility Model Content

[0004] In order to solve the above-mentioned technical problems, a technical solution adopted in the present application is to provide an earphone, which includes a movement shell and a speaker assembly and a key assembly arranged in the movement shell, the speaker assembly includes a main speaker and a sound cavity bracket, the sound cavity bracket cooperates with the main speaker to form an acoustic back cavity, the key assembly is supported on the sound cavity bracket, and a key part for pressing to trigger the key assembly is provided on the movement shell.

[0005] In some embodiments, the earphones also include a main control circuit board, which is stacked with the speaker assembly along the vibration direction of the main speaker, and the main surface of the main control circuit board is arranged to face or away from the speaker assembly. The sound cavity bracket is arranged around the main speaker, and the button assembly is supported on the outer peripheral surface of the sound cavity bracket and is electrically connected to the main control circuit board.

[0006] In some embodiments, the key assembly includes a support plate and a key body arranged on the side of the support plate away from the sound cavity bracket, the key body is fixedly connected to the support plate, the support plate is fixedly supported on the outer peripheral surface of the sound cavity bracket, and the angle formed by the main surface of the support plate away from the sound cavity bracket and the axial direction of the sound cavity bracket is between 0° and 10°.

[0007] In some embodiments, the main surface of the support plate facing away from the sound cavity bracket is vertically arranged with the main surface of the main control circuit board facing toward or away from the speaker assembly, or the angle between the main surface of the support plate and the main surface of the main control circuit board is between 80° and 90°.

[0008] In some embodiments, a supporting surface is provided on the outer peripheral surface of the sound cavity bracket, and the support plate is supported on the supporting surface on the side facing the sound cavity bracket. The sound cavity bracket is also provided with a limiting mechanism for limiting the support plate.

[0009] In some embodiments, the limiting mechanism includes a first limiting portion arranged on the side of the support surface away from the main control circuit board, and the first limiting portion is configured to limit the support plate in a first direction, wherein the first direction is a direction parallel to the support surface and away from the main control circuit board.

[0010] In some embodiments, a pressure block is arranged between the main control circuit board and the support plate, and the pressure block is used to elastically abut against the first board edge of the support plate facing the main control circuit board, so that the second board edge of the support plate away from the main control circuit board is supported on the first limiting portion.

[0011] In some embodiments, the limiting mechanism further includes a second limiting portion, which is arranged on the periphery of the support surface along a second direction. The second direction is parallel to the support surface and perpendicular to the first direction. The second limiting portion is used to limit the support plate in the second direction.

[0012] In some embodiments, the number of the second limiting portions is two spaced apart along the second direction, and the support plate is located between the two second limiting portions. Alternatively, the support plate includes a main body and a hook portion connected to the main body, the main body is supported on the support surface, and the hook portion is hung on a side of the second limiting portion away from the support surface.

[0013] In some embodiments, the limiting mechanism includes a third limiting portion spaced apart from the supporting surface in a vertical direction of the supporting surface, the third limiting portion is located on a side of the supporting surface supporting the support plate, and the third limiting portion is used to limit the support plate in a vertical direction of the supporting surface.

[0014] In some embodiments, a key hole is opened on the movement housing, and the key part includes a cantilever beam, a key cap and a soft filling body. The cantilever beam, the soft filling body and the key cap are arranged in the key hole. The cantilever beam and the movement housing are integrally formed. One end of the cantilever beam is connected to the edge of the key hole, and the key cap is arranged at the other end of the cantilever beam. The soft filling body is used to fill the gap between the cantilever beam, the key cap and the edge of the key hole.

[0015] In some embodiments, the earphone also includes an ear hook, the movement shell has a connecting end connected to the ear hook and a free end away from the connecting end, when worn, the ear hook is hung between the user's auricle and the head, the movement shell is located on the front side of the auricle, the free end at least partially covers or extends into the concha cavity, the movement shell has a length direction, a thickness direction and a width direction that are orthogonal to each other, the length direction is the spacing direction between the connecting end and the free end, the thickness direction is the direction toward or away from the auricle in the wearing state, the movement shell includes a first side wall and a second side wall arranged along the width direction, and the button part is arranged on the first side wall or the second side wall.

[0016] In some embodiments, the earphone further includes an ear hook and a magnet assembly. The movement housing has a connection end connected to the ear hook and a free end away from the connection end. The polarization direction of the magnet assembly is the same as that of the main magnet of the main speaker. The speaker assembly further includes a secondary speaker. The magnet assembly and the secondary speaker are arranged on the side of the main speaker close to the user's auricle in the wearing state along the vibration direction of the main speaker. When observed along the length direction of the movement housing, the magnet assembly and the secondary speaker at least partially overlap, and the length direction is the direction of the interval between the connection end and the free end.

[0017] In some embodiments, the ratio of the projected area of the magnet assembly in the thickness direction of the movement housing to the projected area of the main magnet of the main speaker in the thickness direction is between 0.1 and 0.2. The thickness direction of the movement housing is the direction in which the movement housing faces or is away from the user's auricle in the wearing state, and the thickness direction and the length direction are orthogonal to each other.

[0018] In some embodiments, the vibration direction and the length direction of the main speaker define a symmetry plane. The magnet assembly includes two magnets, and the two magnets are located on both sides of the symmetry plane and are symmetrically arranged with respect to the symmetry plane.

[0019] The beneficial effects of the present application are as follows: The earphone described in the present application is provided with a main speaker, a sound cavity bracket, and a button assembly. The sound cavity bracket can cooperate with the main speaker to form an acoustic rear cavity, thereby ensuring the sound pickup effect of the main speaker. At the same time, the sound cavity bracket can support the button assembly. Therefore, the function of the sound cavity bracket can be reused, and there is no need to additionally provide a support component to support and fix the button assembly, thereby saving the space inside the earphone, reducing the size of the earphone, and improving the space utilization rate. Description of the Drawings

[0020] Figure 1 is a schematic diagram of the front contour of the ear of the user described in the present application;

[0021] Figure 2 is a three-dimensional structure schematic diagram of one side of an embodiment of the earphone provided by the present application;

[0022] Figure 3 is Figure 2 a schematic diagram of the earphone embodiment shown in the wearing state;

[0023] Figure 4 is Figure 2 an exploded structure schematic diagram of the sound generating part in the earphone embodiment shown;

[0024] Figure 5 is Figure 2 another exploded structure schematic diagram of the sound generating part in the earphone embodiment shown;

[0025] Figure 6 is Figure 2A schematic diagram of a cross-sectional structure of the earphone embodiment shown along section line AA;

[0026] Figure 7 yes Figure 4 An enlarged schematic diagram of a local area I of the sound-producing part is shown;

[0027] Figure 8 yes Figure 6 An enlarged schematic diagram of a local area J of the vocal part is shown;

[0028] Figure 9 yes Figure 2 Another exploded structural diagram of the sound-emitting part of the earphone embodiment shown;

[0029] Figure 10 yes Figure 9 A schematic structural diagram of some components of the sound-producing part from another perspective;

[0030] Figure 11 yes Figure 9 A schematic structural diagram of some components in the sound-producing part from another perspective is shown. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, 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 creative work are within the scope of protection of this application.

[0032] Reference to "embodiment" in this application means that a specific feature, structure or characteristic described in conjunction with the embodiment may be included in at least one embodiment of this application. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in this application may be combined with other embodiments.

[0033] The following is an exemplary description of the earphones according to the earphone embodiment.

[0034] Combination Figure 1 , the user's ear 100 may include physiological parts such as the external auditory canal 101, the concha cavity 102 and the auricle 103. Among them, although the external auditory canal 101 has a certain depth and extends to the eardrum of the ear 100, for the convenience of description, in the present application, unless otherwise specified, the external auditory canal 101 specifically refers to its entrance away from the eardrum (i.e., the ear hole). In addition, the concha cavity 102 has a certain volume and depth, and the concha cavity 102 is directly connected to the external auditory canal 101, that is, it can be simply regarded as the aforementioned ear hole is located at the bottom of the concha cavity 102.

[0035] The earphone 1 is an audio converter that can receive electrical signals emitted from a media player or a receiver and convert the electrical signals into sound waves that can be heard by a user. In some embodiments, the earphone 1 can be an open earphone, such as an ear-hook earphone, a behind-the-ear earphone, or an earclip earphone, etc.

[0036] As Figure 2 or Figure 3 shown, the earphone 1 can be an ear-hook earphone. In some embodiments, in the worn state, at least a part of the earphone 1 can be inserted into the concha 102 of the user's (wearer's) ear to improve the wearing stability. In some embodiments, at least a part of the sound-emitting part of the earphone 1 can cover the auricle of the user's ear, such as the antihelix, the cymba conchae, or the triangular fossa, etc. (not shown in the figure), but does not block the external auditory canal 101 of the user's ear or does not visually block the external auditory canal 101 of the user's ear. In some embodiments, the sound-emitting part 20 of the earphone 1 can also be attached to or abutted against the facial area in front of the user's ear, and the side of the sound-emitting part 20 for emitting sound faces the user's ear or the external auditory canal 101 of the user.

[0037] Furthermore, different users may have individual differences, resulting in different size differences such as shapes and sizes of the ear 100. For the convenience of description and to reduce (or even eliminate) the individual differences of different users, an emulator including a head and its (left and right) ears 100 can be made based on the ANSI:S3.36, S3.25, and IEC:60318-7 standards, such as GRAS 45BC KEMAR, HEAD Acoustics, B&K 4128 series, or B&K 5128 series, so as to present the scenario of most users wearing the earphone 1. Taking GRAS KEMAR as an example, the emulator of the ear 100 can be any one of GRAS 45AC, GRAS 45BC, GRAS 45CC, or GRAS 43AG, etc.; taking HEAD Acoustics as an example, the emulator of the ear 100 can be any one of HMS II.3, HMS II.3LN, or HMS II.3LN HEC, etc. Therefore, in this application, descriptions such as "the user wears the earphone 1", "the earphone 1 is in the worn state", and "in the worn state" can refer to the earphone 1 described in this application being worn on the ear 100 of the aforementioned emulator. Of course, precisely because different users have individual differences, there may be a certain difference between the earphone 1 worn by different users and the earphone 1 worn on the ear 100 of the aforementioned emulator, but this difference should be tolerated.

[0038] As an example, in combination with Figure 2 and Figure 3, the earphone 1 may include an earhook 10 and a sound generating part 20 that are connected to each other. In the worn state, the earhook 10 may be hung between the user's auricle 103 and the head, that is, at least a part of the earhook 10 of the earphone 1 may be located at the rear side of the ear 100, so that the earphone 1 is hung on the ear 100, and the sound generating part 20 may be located at the front side of the auricle 103.

[0039] The sound generating part 20 may be a sound playback device, and the sound generating part 20 may be used to convert an electrical signal into a sound signal (which may also be referred to as "sound wave" or "sound signal") and transmit it to the ear 100 of the wearer.

[0040] In some embodiments, devices such as a battery and / or a circuit board may be provided in the earhook 10. Of course, the earhook 10 may also not be provided with devices such as a battery and / or a circuit board, and the battery and / or the circuit board and other devices may be installed in the sound generating part 20.

[0041] As an example, in the earphone 1, the earhook 10 may be replaced by other structures that can be worn on the user's head, such as a ribbon, a clamp, a ring structure, a hat, a bracket, or a U-shaped structure, etc., to realize the wearing of the sound generating part 20. Of course, in some embodiments, the earhook 10 may be omitted.

[0042] In some embodiments, as Figures 2 to 5 shown, the earphone 1 may include a movement housing 30, a speaker assembly 40, and a button assembly 50. The speaker assembly 40 and the button assembly 50 are provided in the movement housing 30. The speaker assembly 40 and the button assembly 50 may be cooperatively installed together in the movement housing 30 to save the space inside the movement housing 30, reduce the size of the movement housing 30, and improve the space utilization rate.

[0043] As an example, the movement housing 30, the speaker assembly 40, and the button assembly 50 may be provided in the sound generating part 20. Among them, the speaker assembly 40 is a component that can convert an electrical signal into a corresponding sound signal, so that the sound generating part 20 has the function of playing sound. In this embodiment, the speaker assembly 40 may include a bone conduction speaker and an air conduction speaker. In other embodiments, the speaker assembly 40 may also be set as one of the air conduction speaker and the bone conduction speaker.

[0044] In some embodiments, as Figure 4 and Figure 6As shown, the speaker assembly 40 may include a main speaker 410 and a sound cavity bracket 420. The sound cavity bracket 420 may cooperate with the main speaker 410 to form an acoustic rear cavity 401, and the button assembly 50 is supported on the sound cavity bracket 420. With such an arrangement, the sound cavity bracket 420 can not only cooperate with the main speaker 410 to form the acoustic rear cavity 401, but also support and fix the button assembly 50, thus realizing function multiplexing. Moreover, there is no need to separately provide a support assembly inside the movement housing 30 to support and fix the button assembly 50, so that the space inside the earphone 1 can be saved, the size of the earphone 1 can be reduced, and the space utilization rate can be improved.

[0045] In some embodiments, a button portion 310 for pressing and triggering the button assembly 50 is provided on the movement housing 30. The button portion 310 may be correspondingly arranged with the button assembly 50.

[0046] Exemplarily, the button portion 310 may be provided on the movement housing 30, and a part of the button portion 310 may be exposed on the outer surface of the movement housing 30 for the user to press to trigger the button assembly 50.

[0047] In some embodiments, the button assembly 50 can be connected to other structures in the earphone 1. Specifically, after the button portion 310 triggers the button assembly 50, the button assembly 50 can generate a corresponding control signal, and the earphone 1 can respond to this control signal to perform corresponding actions. In some embodiments, the control signal generated by the button assembly 50 may be a control signal such as a switch signal, a volume control signal, or a song switching signal for controlling the speaker assembly 40, so that the earphone 1 can realize functions such as turning on or off, volume adjustment, or song switching.

[0048] In some embodiments, the main speaker 410 may be an air conduction speaker. As Figure 6 shown, the main speaker 410 may include a diaphragm 411 and a driving mechanism 412. The driving mechanism 412 may be connected to the diaphragm 411. The diaphragm 411, the driving mechanism 412, the sound cavity bracket 420, and the movement housing 30 may jointly form an acoustic rear cavity 401, and an acoustic front cavity 402 may be jointly formed between the diaphragm 411 and the movement housing 30. That is, the acoustic rear cavity 401 and the acoustic front cavity 402 are located on opposite sides of the diaphragm 411.

[0049] In some embodiments, the driving mechanism 412 may include a coil 4121 and a magnetic circuit system 4122. The magnetic circuit system 4122 is connected to the diaphragm 411. The diaphragm 411, the magnetic circuit system 4122, the sound cavity bracket 420, and the movement housing 30 can jointly form an acoustic rear cavity 401. The coil 4121 and the magnetic circuit system 4122 can be used to generate electromagnetic induction under the control of an electrical signal, thereby driving the diaphragm 411 to vibrate, causing the air in the acoustic front cavity 402 of the main speaker 410 to vibrate and generate sound waves, and transmitting the sound waves out of the earphone 1.

[0050] As shown in Figure 4 and Figure 5 , the movement housing 30 may also be provided with a sound outlet hole 320 and a pressure relief hole 330. The sound outlet hole 320 can communicate with the acoustic front cavity 402, and the pressure relief hole 330 can communicate with the acoustic rear cavity 401. The sound waves generated on the front side of the diaphragm 411 are transmitted to the outside through the sound outlet hole 320, and the air in the acoustic rear cavity 401 can be effectively conducted to the outside through the pressure relief hole 330, thereby preventing the pressure accumulation in the acoustic rear cavity 401 from affecting the sound quality of the main speaker 410 as much as possible.

[0051] In some embodiments, as shown in Figure 2 and Figure 3 , the movement housing 30 may have a connection end 340 connected to the ear hook 10 and a free end 350 away from the connection end 340. As an example, in the wearing state, the ear hook 10 can be hung between the user's auricle 103 and the head, the movement housing 30 is located on the front side of the auricle 103, and the free end 350 can at least partially cover or extend into the concha 102.

[0052] In some embodiments, the movement housing 30 may have a length direction, a thickness direction, and a width direction that are orthogonal to each other.

[0053] In some embodiments, the length direction may be the direction of the interval between the connection end 340 and the free end 350. The direction of the interval between the connection end 340 and the free end 350 refers to the direction of the line segment connecting the connection end 340 and the free end 350. In some embodiments, the connection end 340 and the free end 350 may be irregular or regular arc-shaped, and the extension direction of the line connecting the connection end 340 and the free end 350 may be defined as the direction of the straight line perpendicular to the parallel section plane of the two reference points with the farthest relative distance on the connection end 340 and the free end 350. The length direction can also be defined as the direction in which the movement housing 30 approaches or moves away from the back of the head in the wearing state. In other words, the length direction may be as shown by the arrow X in Figure 2 and Figure 3 .

[0054] In some embodiments, the width direction may be defined as the direction in which the movement housing 30 approaches or moves away from the top of the head in the worn state. The width direction may be as shown by the arrow Y in Figure 2 and Figure 3 .

[0055] In some embodiments, the thickness direction of the movement housing 30 is the direction towards or away from the auricle 103 in the worn state. The thickness direction may be as shown by the arrow Z in Figure 2 and Figure 3 . In some embodiments, the thickness direction Z may be substantially parallel to the vibration direction of the main speaker 410, and substantially parallel means that the spatial angle between the two directions is less than 5 degrees.

[0056] In some embodiments, as shown in Figure 2 and Figure 3 , the movement housing 30 may include a first side wall 360 and a second side wall 370 arranged along the width direction Y. The button portion 310 may be provided on the first side wall 360 or the second side wall 370. The button portion 310 is used for the user to press to trigger the button assembly 50. If the button portion 310 is provided on the side away from the auricle 103 or on the edge of the movement housing 30, when the user presses the button portion 310, the movement housing 30 will move, resulting in the button portion 310 on the movement housing 30 being not easily stressed and triggered, and affecting the wearing stability and comfort of the earphone 1. By providing the button portion 310 on the first side wall 360 or the second side wall 370, the user can use two fingers to simultaneously press the first side wall 360 and the second side wall 370, one finger to trigger the button portion 310, and one finger to support on the opposite side wall, so as to facilitate successful pressing of the button portion 310 and ensure that the earphone 1 does not shake in the worn state, improving the user experience.

[0057] In other embodiments, the number of the button portions 310 may be multiple, and the number of the button assemblies 50 may also be multiple, and they may be in one-to-one correspondence and cooperation with the button portions 310. For example, the number of the button portions 310 may be 2, and the two button portions 310 may be respectively provided on the first side wall 360 and the second side wall 370, and the number of the button assemblies 50 is also 2, and they are in one-to-one correspondence and cooperation with the two button portions 310.

[0058] In some embodiments, as shown in Figures 4 to 7 , the earphone 1 may further include a main control circuit board 60 provided in the movement housing 30. The main control circuit board 60 may be stacked with the speaker assembly 40 along the vibration direction of the main speaker 410, and the main surface of the main control circuit board 60 may be arranged to face towards or away from the speaker assembly 40. The sound cavity bracket 420 may be arranged to surround the main speaker 410. The button assembly 50 may be supported on the outer peripheral surface of the sound cavity bracket 420 and electrically connected to the main control circuit board 60.

[0059] Among them, the main control circuit board 60 refers to the control core part inside the earphone 1. The main control circuit board 60 can be a circuit board such as a PCB (Printed Circuit Board) or an FPC (Flexible Printed Circuit board). The main surface of the main control circuit board 60 refers to the working surface that can be used to set components such as chips and connecting wires.

[0060] In some embodiments, the button assembly 50 can be electrically connected to the circuit provided on the main surface of the main control circuit board 60 through a wire. In other embodiments, the button assembly 50 can also be electrically connected to the main control circuit board 60 through an electrical connection member such as a flexible circuit board or an auxiliary PCB circuit board.

[0061] In some embodiments, the main surface of the main control circuit board 60 and the axis of the main speaker 410 can be perpendicular or substantially perpendicular to each other. Substantially perpendicular means that the spatial angle between the two directions is between 75° and 105°.

[0062] In some embodiments, the vibration direction of the main speaker 410 can be the axis of the main speaker 410. The main control circuit board 60 can be stacked with the main speaker 410 along the axis of the main speaker 410. And the sound cavity bracket 420 can be arranged around the main speaker 410 along the radial direction of the main speaker 410. Therefore, the sound cavity bracket 420 and the main control circuit board 60 can also be arranged at intervals along the axis of the main speaker 410.

[0063] In some embodiments, as Figure 6 shown, the vibration direction of the main speaker 410 can be the thickness direction Z of the movement housing 30, that is, the sound cavity bracket 420 and the main control circuit board 60 are stacked and spaced from each other in the thickness direction Z of the earphone 1 to form an interval space 11. Since the current generated on the main control circuit board 60 will interact with the main speaker 410, which will further cause poor sound quality of the main speaker 410. Therefore, setting the sound cavity bracket 420 and the main control circuit board 60 to have an interval space 11 in the thickness direction Z of the earphone 1 can reduce the influence of the current on the main control circuit board 60 on the main speaker 410, thereby reducing the background noise of the main speaker 410 to ensure the sound quality of the main speaker 410.

[0064] In some embodiments, as Figures 6 to 8As shown, the button assembly 50 can be disposed on the outer peripheral surface of the sound cavity bracket 420 and can partially extend into the spacer 11 along the thickness direction Z. Therefore, in a vertical direction of the thickness direction Z, a part of the button assembly 50 can overlap with the spacer 11, and another part of the button assembly 50 can overlap with the sound cavity bracket 420. Therefore, there is no need to separately provide an installation space for the button assembly 50 in the thickness direction Z. In other words, the installation space of the button assembly 50 can reuse the spacer 11, thereby reducing the size of the movement housing 30 in the thickness direction Z and improving the space utilization rate inside the movement housing 30.

[0065] In some embodiments, the axis of the sound cavity bracket 420 can be parallel or substantially parallel to the axis of the main speaker 410. Substantially parallel means that the spatial angle between the two directions is between 0° and 5°. Such a setting can make the structures of the sound cavity bracket 420, the main speaker 410, and the main control circuit board 60 more compact, further improving the space utilization rate of the movement housing 30.

[0066] In some embodiments, as Figure 5 , Figure 7 and Figure 8 shown, the button assembly 50 can include a support plate 510 and a button body 520. The button body 520 is disposed on a side of the support plate 510 facing away from the sound cavity bracket 420. The button body 520 can be fixedly connected to the support plate 510. The support plate 510 can be supported on the outer peripheral surface of the sound cavity bracket 420, and the included angle formed by the main surface of the support plate 510 facing away from the sound cavity bracket 420 and the axis of the sound cavity bracket 420 is between 0° and 10°.

[0067] Wherein, the main surface of the support plate 510 refers to the surface of the support plate 510 for setting the button body 520. In some embodiments, the support plate 510 can be flat, and the main surface of the support plate 510 is the side with the largest area. In some embodiments, the support plate 510 can be a support structure with a stepped surface, and at least part of the main surface is a plane. In some embodiments, the support plate 510 can be a support structure that is integrally arc-shaped, and the main surface is a plane. The support plate 510 extends in the direction of the plane where the main surface of the support plate 510 is located. Such a setting makes the structure of the support plate 510 more suitable for the shape of the sound cavity bracket 420, increasing the space utilization rate of the movement housing 30.

[0068] The axis of the sound cavity bracket 420 can be as Figure 6 and Figure 8 shown by the arrow B, and the plane where the main surface of the support plate 510 facing away from the sound cavity bracket 420 is located can be as Figure 8The included angle formed by the main surface of the support plate 510 away from the sound cavity support 420 and the axial direction of the sound cavity support 420 can be as shown by the angle α in 8, where 0°≤α≤10°.

[0069] If the angle formed by the main surface of the support plate 510 away from the sound cavity bracket 420 and the axial direction of the sound cavity bracket 420 is greater than 10°, the support plate 510 is tilted to a greater extent than the axial direction of the sound cavity bracket 420, the support plate 510 will occupy a larger space, and the size of the movement housing 30 in the width direction Y will increase. Moreover, the setting of the support plate 510 being too tilted compared to the sound cavity bracket 420 will also be disadvantageous for the support plate 510 to be installed on the outer peripheral surface of the sound cavity bracket 420, which will increase the difficulty of installing the support plate 510 on the sound cavity bracket 420.

[0070] Therefore, setting the angle α to be between 0° and 10° can make the main surface of the support plate 510 facing away from the sound cavity bracket 420 parallel or nearly parallel to the axial direction of the sound cavity bracket 420, so that the support plate 510 can reduce the axial space occupied by the sound cavity bracket 420, thereby improving space utilization and making it easier to install the support plate 510 on the outer peripheral surface of the sound cavity bracket 420.

[0071] In some embodiments, the main surface of the support plate 510 facing away from the sound cavity bracket 420 can be arranged perpendicular to the main surface of the main control circuit board 60 facing toward or away from the speaker assembly 40, or the main surface of the support plate 510 can be at an angle between 80° and 90° to the main surface of the main control circuit board 60.

[0072] As an example, the main surface of the main control circuit board 60 may be as follows: Figure 8 As shown in the midplane SF, the angle between the main surface of the support plate 510 and the main surface of the main control circuit board 60 can be as follows: Figure 8 As shown in the middle angle β, 80°≤β≤90°. For example, the angle β can be 80°, 83°, 85°, 88° or 90°.

[0073] If the angle β is less than 80° or greater than 90°, it means that the support plate 510 is tilted more than the main control circuit board 60, and the support plate 510 will occupy a larger space in the direction parallel to the main surface of the main control circuit board 60, thereby increasing the size of the movement housing 30 in this direction. When the angle β is equal to 90°, it means that the main surface of the support plate 510 is perpendicular to the main surface of the main control circuit board 60.

[0074] Therefore, setting the included angle between the main surface of the support plate 510 and the main surface of the main control circuit board 60 to be between 80° and 90° can make the main surface of the support plate 510 perpendicular or nearly perpendicular to the main surface of the main control circuit board 60. With such a setting, the support plate 510 reduces the occupied space in the direction parallel to the main surface of the main control circuit board 60, thereby improving the space utilization rate. In some embodiments, both the support plate 510 and the main control circuit board 60 can be designed in a plate shape, so the support plate 510 and the main control circuit board 60 can also be arranged perpendicular or nearly perpendicular to each other.

[0075] In some embodiments, such as Figure 5 and Figure 7 As shown, a support surface 421 can be provided on the outer peripheral surface of the sound cavity bracket 420, and one side of the support plate 510 facing the sound cavity bracket 420 can be supported on the support surface 421. A limiting mechanism 422 for limiting the support plate 510 can also be provided on the sound cavity bracket 420.

[0076] Exemplarily, the setting of the support surface 421 can facilitate better support of the support plate 510 on the sound cavity bracket 420. The limiting mechanism 422 can be provided on or around the support surface 421 to limit the support plate 510 and prevent the movement of the support plate 510 and the button assembly 50 as much as possible, thereby improving the structural stability of the earphone 1 and avoiding the occurrence of poor triggering of the button assembly 50 as much as possible.

[0077] In other embodiments, an adhesive medium can also be directly added between the main surface of the support plate 510 and the support surface 421. The adhesive medium is used to bond the support plate 510 and the support surface 421, thereby fixing and limiting the button assembly 50 on the support surface 421 without setting the limiting mechanism 422. Among them, the adhesive medium can be a substance with a certain adhesive force such as glue or double-sided tape.

[0078] Alternatively, in other embodiments, the main surface of the support plate 510 and the support surface 421 can also be fixed to each other by welding, snap connection or screwing, etc. This embodiment will not be specifically listed one by one here.

[0079] In some embodiments, such as Figure 7 and Figure 8As shown, the limiting mechanism 422 may include a first limiting portion 4221 disposed on the side of the support surface 421 away from the main control circuit board 60. The first limiting portion 4221 may be configured to limit the support plate 510 in a first direction. The first direction is a direction parallel to the support surface 421 and away from the main control circuit board 60. The first direction C may be parallel to the thickness direction Z of the movement housing 30, and the first limiting portion 4221 limits the side of the support plate 510 away from the main control circuit board 60 in a direction parallel to the thickness direction Z. Alternatively, the first direction C may also be other directions inclined relative to the thickness direction Z, such as a direction having a certain angle with the axis of the main speaker 410, and this angle may correspond to the angle α formed by the axial direction of the support plate 510 and the sound cavity bracket 420. As an example, the first direction may be as follows Figure 7 As shown by arrow C in the middle.

[0080] In some embodiments, the first limiting portion 4221 can be raised relative to the supporting surface 421, and the first limiting portion 4221 and the main control circuit board 60 can be arranged at an axial interval along the main speaker 410, and the side of the supporting plate 510 away from the main control circuit board 60 can abut against the first limiting portion 4221.

[0081] In some embodiments, Figures 5 to 8 As shown, a pressure block 70 can be arranged between the main control circuit board 60 and the support plate 510, and the pressure block 70 is used to elastically abut the first plate edge 511 of the support plate 510 toward the side of the main control circuit board 60, so that the second plate edge 512 of the support plate 510 away from the side of the main control circuit board 60 is supported on the first limiting portion 4221.

[0082] In some embodiments, the pressing block 70 may be an elastic element such as a spring or a foam block. The pressing block 70 may be fixedly connected to the main control circuit board 60 by bonding, screwing or sealing, and the first plate edge 511 of the support plate 510 is pressed on the end of the pressing block 70 away from the main control circuit board 60, so that the pressing block 70 limits the support plate 510 in the opposite direction of the first direction C. The provision of the elastic pressing block 70 facilitates the flexible installation of the support plate 510 and the key assembly 50 on the sound cavity bracket 420, reducing the difficulty of assembling the support plate 510 and the requirements for assembly accuracy.

[0083] Among them, the pressing block 70 and the first limiting portion 4221 can be arranged at intervals along the first direction C, and the pressing block 70 and the first limiting portion 4221 act together on the support plate 510 to limit the support plate 510 in the first direction C and the opposite direction of the first direction C, so that the support plate 510 is not easy to slide along the first direction C and the opposite direction of the first direction C and separate from the support surface 421, and then fix the button assembly 50 in the first direction C and the opposite direction of the first direction C, thereby improving the structural stability inside the movement shell 30 and avoiding poor touch as much as possible.

[0084] In some embodiments, Figure 7 As shown, the limiting mechanism 422 may further include a second limiting portion 4222, and the second limiting portion 4222 may be arranged on the periphery of the support surface 421 along the second direction. The second direction may be parallel to the support surface 421 and perpendicular to the first direction C. The second direction may be a direction perpendicular to the first direction C. The second limiting portion 4222 may be used to limit the support plate 510 in the second direction to prevent the support plate 510 from sliding in the second direction and separating from the support surface 421. Exemplarily, the second direction corresponds to the angle α formed by the axial directions of the support plate 510 and the sound cavity bracket 420. Exemplarily, if the angle α is equal to 0°, the second direction is the length direction X of the movement housing 30. In other embodiments, the second direction D may also be other directions inclined relative to the width direction Y. Exemplarily, the second direction may be as follows Figure 7 As shown by the middle arrow D, the second direction D is perpendicular to the first direction C.

[0085] As an example, the number of the second limiting portions 4222 may be two spaced apart along the second direction D, and the support plate 510 is located between the two second limiting portions 4222. Figure 7 As shown, the two second limiting portions 4222 can be arranged on both sides of the support surface 421 along the second direction D, and protrude relative to the support surface 421. The two ends of the support plate 510 along the second direction D are respectively abutted against the two second limiting portions 4222, so that the two second limiting portions 4222 can limit the support plate 510 in the second direction D.

[0086] As an example, Figure 5 as well as Figure 7 As shown, the support plate 510 may include a main body 513 and a hook portion 514 connected to the main body 513. The main body 513 may be supported on the support surface 421. The button body 520 may be disposed on the main body 513. The hook portion 514 may be hung on a side of the second limiting portion 4222 away from the support surface 421. As an example, Figure 6As shown, the second limiting portion 4222 may be in a strip shape relative to the support surface 421 and protrude from the support surface 421. In the second direction D, one side of the second limiting portion 4222 contacts the main body 513 of the support plate 510, and the other side contacts the hook-shaped portion 514. Therefore, the second limiting portion 4222 can limit the support plate 510 in the second direction D by blocking the main body 513 and the hook-shaped portion 514. Such a configuration can facilitate the installation of the support plate 510 on the sound cavity bracket 420, reduce the difficulty of assembling the support plate 510 and the sound cavity bracket 420, and also reduce the difficulty of processing the sound cavity bracket 420.

[0087] As an example, the number of the second limiting portions 4222 can be two spaced apart along the second direction D, and the support plate 510 is located between the two second limiting portions 4222. At the same time, the support plate 510 can include a main body 513 and a hook portion 514 connected to the main body 513. The main body 513 can be supported on the support surface 421. The button body 520 can be arranged on the main body 513. The hook portion 514 can be hung on the side of the second limiting portion 4222 away from the support surface 421. In this way, the support plate 510 and the button assembly 50 can be further prevented from sliding in the second direction D.

[0088] In some embodiments, Figure 7 as well as Figure 8 As shown, the limiting mechanism 422 may include a third limiting portion 4223 perpendicular to the support surface 421 and spaced apart from the support surface 421, the third limiting portion 4223 is located on the side of the support plate 510 away from the support surface 421, and the third limiting portion 4223 is used to limit the support plate 510 in a direction perpendicular to the support surface 421.

[0089] As an example, the third limiting portion 4223 may be connected to the first limiting portion 4221 , and be perpendicular to the first limiting portion 4221 .

[0090] As an example, the third limiting portion 4223 may extend from the top of the first limiting portion 4221 and in a direction away from the first direction C, and the third limiting portion 4223 may form a mounting groove 4224 together with the first limiting portion 4221 and the supporting surface 421, and the first plate edge 511 of the supporting plate 510 is disposed in the mounting groove 4224. The third limiting portion 4223 and the supporting surface 421 limit the supporting plate 510 in a direction perpendicular to the supporting surface 421, so as to fix the supporting plate 510 on the supporting surface 421, so that the supporting plate 510 is not easy to slide and detach in a direction perpendicular to the supporting surface 421, thereby further stabilizing the supporting plate 510, improving the structural tightness between the sound cavity bracket 420 and the supporting plate 510, and ensuring the trigger sensitivity of the key assembly 50.

[0091] In some embodiments, Figure 7 As shown, the second limiting portion 4222 can extend in a direction away from the first direction C to form a fixing column 4225, and the fixing column 4225 is spaced from the support surface 421 in a direction perpendicular to the support surface 421. The hook portion 514 of the support plate 510 is hung on the second limiting portion 4222. The main control circuit board 60 can be provided with a mounting hole 610 at a position corresponding to the fixing column 4225, and the fixing column 4225 can be further extended into the mounting hole 610 to achieve mutual fixation between the main control circuit board 60 and the sound cavity bracket 420. In this way, the second limiting portion 4222 can be reused, so that the structure among the sound cavity bracket 420, the main control circuit board 60 and the key assembly 50 is more compact, and the space utilization rate of the movement housing 30 is improved.

[0092] By setting a limiting mechanism 422 and a pressing block 70, the freedom of the support plate 510 in the first direction C, the second direction D and the direction perpendicular to the support surface 421, which are orthogonal to each other, can be limited, so that the support plate 510 is not easy to loosen or detach from the support surface 421 in the first direction C, the opposite direction of the first direction C, the second direction D and the direction perpendicular to the support surface 421, so that the key assembly 50 is fixed to the support surface 421 by the limiting mechanism 422, thereby improving the structural tightness and firmness of the movement housing 30, and at the same time avoiding the poor triggering of the key assembly 50 due to the shaking of the support plate 510.

[0093] In some embodiments, Figures 4 to 8 As shown, a key hole 380 may be provided on the movement housing 30. The position of the key hole 380 may correspond to the position of the key assembly 50. The key portion 310 may include a cantilever beam 311, a key cap 312 and a soft filling body 313. The cantilever beam 311, the soft filling body 313 and the key cap 312 may be arranged in the key hole 380. The fixed end of the cantilever beam 311 may be located at the edge of the key hole 380 and may be integrally formed with the movement housing 30, the free end of the cantilever beam 311 may correspond to the key body 520 in the key assembly 50 on the side facing the inside of the movement housing 30, and the free end of the cantilever beam 311 may be connected to the key cap 312 on the side facing away from the inside of the movement housing 30. The key cap 312 can be exposed on the outer surface of the movement housing 30 and is used to be pressed by the user, and when the key cap 312 is pressed by the user, the key cap 312 can further push the free end of the cantilever beam 311 to move inside the movement housing 30 to touch the key body 520, thereby transmitting a corresponding control signal to the main control circuit board 60. The soft filling body 313 can be used to fill the gap between the cantilever beam 311 and the key cap 312 and the hole edge of the key hole 380.

[0094] In some embodiments, Figure 8As shown in the figure, a protrusion 3111 is provided on one side of the free end of the cantilever beam 311 connected to the key cap 312. A groove 3112 can be provided at the position of the key cap 312 corresponding to the protrusion 3111. The protrusion 3111 is embedded in the groove 3112, and the cantilever beam 311 realizes the fixation and limitation of the key cap 312 through the mutual cooperation of the protrusion 3111 and the groove 3112. Of course, in other embodiments, the cantilever beam 311 and the key cap 312 can also be connected by other means such as bonding or snap connection, and this embodiment is not specifically limited herein.

[0095] In some embodiments, the soft filler 313 can be an element with certain elasticity such as silica gel or rubber. Specifically, the soft filler 313 can be fixed to the side of the cantilever beam 311 facing away from the inside of the movement housing 30. The setting of the soft filler 313 can prevent external impurities such as liquid, dust, and metal particles from entering the movement housing 30 through the key hole 380 and affecting or damaging the components inside the movement housing 30, so as to further improve the stability and safety inside the movement housing 30.

[0096] In some embodiments, as Figures 9 to 11 shown, the earphone 1 can further include a magnet assembly 80 provided inside the movement housing 30. The magnet assembly 80 has a certain magnetic attraction ability, so that the earphone 1 can be adsorbed in a corresponding charging case or other charging devices.

[0097] In some embodiments, the polarization direction of the magnet assembly 80 can be the same as the polarization direction of the main magnet 413 of the main speaker 410. The main magnet 413 is provided inside the main speaker 410. The main magnet 413 refers to the magnet element that mainly provides the magnetic field in the main speaker 410. The position of the main magnet 413 can be referred to Figure 6 and Figure 9 .

[0098] Setting the polarization direction of the magnet assembly 80 to be the same as that of the main magnet 413 of the main speaker 410 can enable the magnet assembly 80 and the main magnet 413 to jointly play the role of adsorbing the earphone 1 in a corresponding charging case or other charging devices, enhancing the overall magnetic attraction of the earphone 1, ensuring that the earphone 1 can be stably adsorbed in the charging case or other charging devices, and ensuring the charging effect.

[0099] In some embodiments, as Figures 9 to 11 shown, the speaker assembly 40 can further include a secondary speaker 430. The magnet assembly 80 and the secondary speaker 430 can be arranged on the side of the main speaker 410 close to the user's auricle 103 in the vibration direction of the main speaker 410 in the wearing state. In other words, in the thickness direction Z, the magnet assembly 80 and the secondary speaker 430 are respectively stacked with the main speaker 410.

[0100] In some embodiments, in combination with Figure 9 , Figure 10 and Figure 11 , when observed along the length direction X of the movement housing 30, the magnet assembly 80 and the auxiliary speaker 430 can at least partially overlap. In other words, the projection of the magnet assembly 80 on a reference plane perpendicular to the length direction X and the projection of the auxiliary speaker 430 on a reference plane perpendicular to the length direction X at least partially overlap. With such a setting, the space utilization rate of the movement housing 30 can be improved, ensuring that the size of the movement housing 30 in the thickness direction Z will not be too large.

[0101] In some embodiments, the ratio between the projected area of the magnet assembly 80 in the thickness direction Z of the movement housing 30 and the projected area of the main magnet 413 of the main speaker 410 in the thickness direction Z can be between 0.1 and 0.2.

[0102] If the ratio between the projected area of the magnet assembly 80 in the thickness direction Z of the movement housing 30 and the projected area of the main magnet 413 of the main speaker 410 in the thickness direction Z is less than 0.1, it means that the area of the magnet assembly 80 is small and cannot provide sufficient magnetic attraction force to stably adsorb the earphone 1 in the charging case or other charging devices. If the ratio between the projected area of the magnet assembly 80 in the thickness direction Z of the movement housing 30 and the projected area of the main magnet 413 of the main speaker 410 in the thickness direction Z is greater than 0.2, it means that the magnet assembly 80 is large. At this time, the magnetic field formed by the magnet assembly 80 will also be relatively strong. Since the polarization direction of the magnet assembly 80 is the same as the polarization direction of the main magnet 413, the too strong magnetic field of the magnet assembly 80 will have a greater impact on the magnetic field of the main magnet 413, affecting the sound quality effect of the main speaker 410.

[0103] Therefore, setting the ratio between the projected area of the magnet assembly 80 in the thickness direction Z of the movement housing 30 and the projected area of the main magnet 413 of the main speaker 410 in the thickness direction Z between 0.1 and 0.2 can enable the magnet assembly 80 to have sufficient magnetic attraction force, be able to enhance the magnetic attraction force of the earphone 1 for the earphone 1 to be adsorbed in the charging case or other charging devices, and moreover, when the polarization direction of the magnet assembly 80 is the same as the polarization direction of the main magnet 413, the magnet assembly 80 will not have a greater impact on the magnetic field of the main magnet 413, thus being able to ensure the sound quality effect of the main speaker 410.

[0104] Exemplarily, the ratio between the projected area of the magnet assembly 80 in the thickness direction Z of the movement housing 30 and the projected area of the main magnet 413 of the main speaker 410 in the thickness direction Z can be values such as 0.1, 0.13, 0.16, 0.18 or 0.2.

[0105] In some embodiments, such as Figure 10and Figure 11 As shown, the vibration direction and the length direction X of the main speaker 410 can define a symmetry plane SG. Among them, the symmetry plane SG of the main speaker 410 is also the symmetry plane SG of the main magnet 413.

[0106] In some embodiments, such as Figure 10 and Figure 11 As shown, the magnet assembly 80 may include two magnets 810. The two magnets 810 are located on both sides of the symmetry plane SG and are symmetrically arranged with respect to the symmetry plane SG. Among them, the magnet 810 is an element with magnetic attraction. For example, the magnet 810 may be an artificial magnet or a natural magnet or other magnetic elements.

[0107] Specifically, the two magnets 810 are symmetrically arranged along the symmetry plane SG, which can balance the magnetic field of the main magnet 413, and can reduce the total magnetic field offset caused by a single magnet 810, resulting in non-linearity of the magnetic field of the main magnet 413, and then causing distortion of the main speaker 410 and affecting the sound quality of the earphone 1.

[0108] In summary, the earphone 1 described in the present application is provided with a main speaker 410, a sound cavity bracket 420 and a button assembly 50. The sound cavity bracket 420 can cooperate with the main speaker 410 to form an acoustic rear cavity 401, so as to ensure the sound pickup effect of the main speaker 410. At the same time, the sound cavity bracket 420 can support the button assembly 50. Therefore, the function multiplexing of the sound cavity bracket 420 can be realized, and there is no need to additionally provide a support component to support and fix the button assembly 50, thereby saving the space inside the earphone 1, reducing the size of the earphone 1, and improving the space utilization rate.

[0109] The above are only the embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present application, or directly or indirectly applied to other related technical fields, shall be equally included in the patent protection scope of the present application.

Claims

1. An earphone, characterized in that, The earphone includes a movement housing, a speaker assembly and a button assembly disposed in the movement housing. The speaker assembly includes a main speaker and a sound cavity bracket. The sound cavity bracket and the main speaker cooperate to form an acoustic rear cavity. The button assembly is supported on the sound cavity bracket, and a button portion for pressing and triggering the button assembly is provided on the movement housing.

2. The earphone according to claim 1, characterized in that, The earphone further includes a main control circuit board. The main control circuit board is stacked with the speaker assembly along the vibration direction of the main speaker, and the main surface of the main control circuit board is arranged to face or face away from the speaker assembly. The sound cavity bracket surrounds the main speaker, and the button assembly is supported on the outer peripheral surface of the sound cavity bracket and electrically connected to the main control circuit board.

3. The earphone according to claim 2, characterized in that, The button assembly includes a support plate and a button body disposed on a side of the support plate away from the sound cavity bracket. The button body is fixedly connected to the support plate. The support plate is fixedly supported on the outer peripheral surface of the sound cavity bracket, and the included angle formed by the main surface of the support plate away from the sound cavity bracket and the axis of the sound cavity bracket is between 0° and 10°.

4. The earphone according to claim 3, characterized in that The main surface of the support plate away from the sound cavity bracket is perpendicularly arranged with the main surface of the main control circuit board facing or facing away from the speaker assembly, or the included angle between the main surface of the support plate and the main surface of the main control circuit board is between 80° and 90°.

5. The earphone according to claim 3 or 4, characterized in that, A support surface is provided on the outer peripheral surface of the sound cavity bracket. One side of the support plate facing the sound cavity bracket is supported on the support surface, and a limiting mechanism for limiting the support plate is further provided on the sound cavity bracket.

6. The earphone according to claim 5, characterized in that, The limiting mechanism includes a first limiting portion provided on a side of the support surface away from the main control circuit board. The first limiting portion is arranged to limit the support plate in a first direction, where the first direction is parallel to the support surface and away from the main control circuit board.

7. The earphone according to claim 6, wherein A pressing block is provided between the main control circuit board and the support plate. The pressing block is used to elastically abut against a first plate edge of the support plate facing the main control circuit board, so that a second plate edge of the support plate away from the main control circuit board is supported on the first limiting portion.

8. The earphone according to claim 6, wherein The limiting mechanism includes a second limiting portion. The second limiting portion is arranged along a second direction on the periphery of the support surface. The second direction is parallel to the support surface and perpendicular to the first direction. The second limiting portion is used to limit the support plate in the second direction.

9. The earphone according to claim 8, wherein The number of the second limiting portions is two arranged at intervals along the second direction. The support plate is located between the two second limiting portions, or The support plate includes a main body portion and a hook-shaped portion connected to the main body portion. The main body portion is supported on the support surface, and the hook-shaped portion is hung on a side of the second limiting portion away from the support surface.

10. The earphone according to claim 8, wherein The limiting mechanism includes a third limiting portion perpendicular to the support surface and spaced from the support surface. The third limiting portion is located on a side of the support surface supporting the support plate. The third limiting portion is used to limit the support plate in a direction perpendicular to the support surface.

11. The earphone according to claim 1, characterized in that, A keyhole is formed in the movement housing. The key part includes a cantilever beam, a key cap, and a soft filler. The cantilever beam, the soft filler, and the key cap are disposed in the keyhole. The cantilever beam is integrally formed with the movement housing. The fixed end of the cantilever beam is located at the edge of the keyhole. The key cap is disposed at the free end of the cantilever beam. The soft filler is used to fill the gap between the cantilever beam, the key cap, and the edge of the keyhole.

12. The earphone according to claim 11, wherein, The earphone further includes an earhook. The movement housing has a connection end connected to the earhook and a free end away from the connection end. In the worn state, the earhook is hung between the user's auricle and the head. The movement housing is located on the front side of the auricle. The free end at least partially covers or extends into the concha. The movement housing has a length direction, a thickness direction, and a width direction that are orthogonal to each other. The length direction is the direction of the interval between the connection end and the free end. The thickness direction is the direction towards or away from the auricle in the worn state. The movement housing includes a first side wall and a second side wall disposed along the width direction. The key part is disposed on the first side wall or the second side wall.

13. The earphone according to claim 1, characterized in that, The earphone further includes an earhook and a magnet assembly. The movement housing has a connection end connected to the earhook and a free end away from the connection end. The polarization direction of the magnet assembly is the same as the polarization direction of the main magnet of the main speaker. The speaker assembly further includes a secondary speaker. The magnet assembly and the secondary speaker are disposed on the side of the main speaker close to the user's auricle in the worn state along the vibration direction of the main speaker. When observed along the length direction of the movement housing, the magnet assembly and the secondary speaker at least partially overlap. The length direction is the direction of the interval between the connection end and the free end.

14. The earphone according to claim 13, wherein, The ratio of the projected area of the magnet assembly in the thickness direction of the movement housing to the projected area of the main magnet of the main speaker in the thickness direction is between 0.1 and 0.

2. The thickness direction of the movement housing is the direction towards or away from the user's auricle in the worn state. The thickness direction and the length direction are orthogonal to each other.

15. The earphone according to claim 13 or 14, characterized in that, The vibration direction of the main speaker and the length direction define a symmetry plane. The magnet assembly includes two magnets. The two magnets are located on both sides of the symmetry plane and are symmetrically disposed with respect to the symmetry plane.

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