earphone

Abstract

This application relates to an earphone, which includes a housing, a speaker module, and a vibrator. The housing has a receiving cavity and includes a first housing and a second housing. The first housing and the second housing are connected by an elastic connector so that the first housing can vibrate relative to the second housing. The first housing and the second housing enclose the receiving cavity. The first housing or the second housing is provided with a sound outlet, which communicates with the receiving cavity. The speaker module is disposed in the receiving cavity. The sound waves emitted by the speaker module are conducted through the air and transmitted through the sound outlet. The vibrator is disposed in the receiving cavity and connected to the first housing. The vibrator drives the first housing to vibrate so as to conduct sound waves through the bone. This application realizes the conduction of sound waves through "air conduction combined with bone conduction", and the elastic connector can effectively alleviate the sound leakage problem and improve the low-frequency sound quality.

Description

Technical Field

[0001] This application relates to the field of loudspeaker devices, and more particularly to a type of headphone. Background Technology

[0002] Open-back headphones are increasingly becoming a popular choice among consumers because their off-ear design avoids the discomfort, stuffiness, dampness, allergies, eczema, and difficulty communicating that can occur with in-ear headphones. This makes them suitable for extended wear and more diverse applications. However, due to their close-range wearing style, sound can leak from the earphone's output port to the ear canal, causing audio leakage or disturbing others. Utility Model Content

[0003] This application provides an earphone to alleviate the problem of sound leakage.

[0004] In a first aspect, this application provides an earphone, comprising:

[0005] The housing includes a first housing and a second housing, which are connected by an elastic connector to allow the first housing to vibrate relative to the second housing; the first housing and the second housing enclose a receiving cavity; the first housing or the second housing is provided with a sound outlet, which communicates with the receiving cavity;

[0006] A speaker module is disposed within the receiving cavity; the sound waves emitted by the speaker module are conducted through air and transmitted through the sound outlet.

[0007] A vibrator is disposed within the receiving cavity and connected to the first housing. The vibrator drives the first housing to vibrate in order to conduct sound waves through the bones.

[0008] Furthermore, the cavity is provided with a partition to divide it into a first accommodating chamber and a second accommodating chamber; the partition is provided with a connecting hole to allow the first accommodating chamber and the second accommodating chamber to communicate; the speaker module and the vibrator are respectively disposed in the first accommodating chamber and the second accommodating chamber; wherein, the partition is connected to the speaker module; and the sound outlet is connected to the first accommodating chamber.

[0009] Furthermore, the plane containing the sound outlet is located on the same side of the speaker module as the first housing;

[0010] The first housing and the second housing have a height difference, and the plane where the sound outlet is located is located between the first housing and the speaker module.

[0011] Furthermore, the elastic connector is cylindrical and includes a large end and a small end, the large end being larger than the small end; the large end is connected to the second housing; and the small end is connected to the first housing.

[0012] Furthermore, the elastic connector is cylindrical, and the dimensions at both ends of the elastic connector are the same.

[0013] Furthermore, the cross-section of the elastic connector is wavy.

[0014] Furthermore, the angle between the diaphragm vibration direction of the speaker module and the vibration direction of the vibrator ranges from 0° to 180°.

[0015] Furthermore, the speaker module is connected to the first housing or the second housing.

[0016] Furthermore, the speaker module divides the receiving cavity into a first chamber and a second chamber d; the housing has a first through hole communicating with the first chamber and a second through hole communicating with the second chamber d;

[0017] When the first through hole is the sound outlet, the second through hole is the sound vent, and the sound waves emitted by the speaker module are transmitted through the first through hole;

[0018] When the second through hole is the sound outlet, the first through hole is the sound vent, and the sound waves emitted by the speaker module are transmitted through the second through hole.

[0019] Furthermore, the speaker module includes:

[0020] A basin stand is disposed within the receiving cavity and connected to the housing;

[0021] A magnetic circuit system is disposed within the receiving cavity and connected to the basin frame; the magnetic circuit system has a magnetic gap.

[0022] A vibration system includes a diaphragm and a voice coil connected to the diaphragm. The diaphragm is connected to the frame and forms an air cavity with the magnetic circuit system. The voice coil is located on the side of the diaphragm facing the magnetic circuit system and is inserted into the magnetic gap. The side of the diaphragm away from the voice coil is positioned facing the first through hole or the second through hole.

[0023] Furthermore, the magnetic circuit system includes:

[0024] A magnetic bowl is connected to the basin stand; the magnetic bowl has a mounting cavity and a first hollow hole communicating with the mounting cavity;

[0025] A magnet is disposed within the mounting cavity and is spaced apart from the cavity wall to form the magnetic gap; the magnet has a second hollow hole, which communicates with the first hollow hole.

[0026] Furthermore, the magnet includes a plurality of magnetic blocks, which are connected end to end in sequence to form the second hollow hole, or the plurality of magnetic blocks are arranged at intervals to form the second hollow hole.

[0027] Furthermore, the magnetic circuit system also includes a washer, which is located on the side of the magnet away from the magnetic bowl. The washer has a third hollow hole, which communicates with the second hollow hole.

[0028] The technical solution provided in this application has the following advantages compared with the prior art:

[0029] The earphone in this application uses an elastic connector that links the first and second housings to reduce the relative vibration between them.

[0030] The first housing, connected to the vibrator, is positioned to contact the user's wearing location (e.g., head). The first housing transmits the vibrator's vibrations to the user's wearing location via bone conduction. Bone conduction is unaffected by the shape of the ear and ear canal, and its transmission path exhibits minimal sound radiation and leakage. During operation, an elastic connector mitigates the problem of vibrations from the vibrator being transmitted to the second housing, causing sound leakage as the second housing vibrates and propagates through the air.

[0031] The sound waves emitted by the speaker module are conducted through the air and transmitted to the outside of the housing through the sound outlet, and can be conducted to the user's ears through the air; when the speaker module is working, the diaphragm vibrates and compresses the air, which will cause the first housing or the second housing to also vibrate to a certain extent. The vibration generated by the diaphragm and the elastic connector are superimposed as the vibration mass, which makes the vibration frequency lower and further improves the low frequency effect.

[0032] Therefore, this application can realize the transmission of sound waves by combining air conduction with bone conduction, and by setting up elastic connectors, it can effectively alleviate the sound leakage problem while improving the low-frequency effect. Attached Figure Description

[0033] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0034] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0036] Figure 1 A cross-sectional schematic diagram of an earphone provided in the first embodiment of this application;

[0037] Figure 2 A cross-sectional schematic diagram of an earphone provided in the second embodiment of this application;

[0038] Figure 3 A cross-sectional schematic diagram of an earphone provided in the third embodiment of this application;

[0039] Figure 4 A cross-sectional schematic diagram of an earphone provided in the fourth embodiment of this application;

[0040] Figure 5 A cross-sectional schematic diagram of an earphone provided in the fifth embodiment of this application;

[0041] Figure 6 A cross-sectional schematic diagram of an earphone provided in the sixth embodiment of this application;

[0042] Figure 7 A cross-sectional schematic diagram of an earphone provided in the seventh embodiment of this application;

[0043] Figure 8 for Figure 1 A schematic diagram of the cross-section of the elastic connector in the diagram;

[0044] Figure 9 for Figure 2 A schematic diagram of the cross-section of a medium-elastic connector.

[0045] Explanation of reference numerals in the attached figures:

[0046] Housing 1, first through hole 1a, second through hole 1b, first chamber 1c, second chamber 1d, sensor identification hole 1e, first housing 11, second housing 12, first receiving chamber 1A, second receiving chamber 1B, partition 13, connecting hole 1D.

[0047] Speaker module 2, vent 2a,

[0048] Magnetic circuit system 22, magnetic gap 22a, magnetic cup 221, first hollow hole 221a, magnet 222, second hollow hole 222a, washer 223, third hollow hole 223a.

[0049] Vibration system 23, diaphragm 231, voice coil 232, air chamber 23a,

[0050] First tuning network 24,

[0051] Second tuning screen 25,

[0052] Vibrator 3,

[0053] Flexible connector 4, small end 4a, large end 4b,

[0054] Sensor 5. Detailed Implementation

[0055] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0056] The following disclosure provides numerous different embodiments or examples for implementing various structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0057] For ease of description, spatial relative terms may be used in the text to describe the relative position or movement of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "front," "back," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure undergoes a positional flip, orientation change, or change of motion, these directional indications will change accordingly. For instance, an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0058] The earphone provided in the technical solution of this application embodiment includes a front end, a connecting part, and a rear end. The rear end includes a battery, a circuit board, etc., the connecting part includes titanium wire, conductive wire, soft silicone and hollow tube, etc., and the front end mainly includes a speaker module (speaker) and a cavity.

[0059] The headphones also include a signal processing module. This module receives an initial acoustic signal from a signal source, processes the initial acoustic signal, and outputs a corresponding control signal. The initial acoustic signal can be any analog acoustic signal directly acquired from the external environment, such as an analog signal (electronic or radio signal) obtained by directly acquiring any perceptible mechanical vibrations conducted through air or bone, or any digital or analog signal (electronic or radio signal) converted from an acoustic signal imported from an external device. Based on the control signal output by the signal processing module, the vibrator and speaker module are controlled to output corresponding bone-conducted sound waves and air-conducted sound waves, respectively. In this application, bone-conducted sound waves refer to sound waves transmitted to the ear via bone through mechanical vibrations, and air-conducted sound waves refer to sound waves transmitted to the ear via air through mechanical vibrations.

[0060] like Figures 1 to 3An earphone provided in this application embodiment includes a housing 1, a speaker module 2, and a vibrator 3. The housing 1 includes a first housing 11 and a second housing 12, which are connected by an elastic connector 4 so that the first housing 11 can vibrate relative to the second housing 12. The first housing 11 and the second housing 12 enclose a receiving cavity. The first housing 11 or the second housing 12 is provided with a sound outlet, which communicates with the receiving cavity. The speaker module 2 is disposed in the receiving cavity. The sound waves emitted by the speaker module 2 are conducted through the air and transmitted through the sound outlet. The vibrator 3 is disposed in the receiving cavity and connected to the first housing 11. The vibrator 3 drives the first housing 11 to vibrate so as to conduct sound waves through the bones.

[0061] By incorporating an elastic connector 4 that connects the first housing 11 and the second housing 12 in the headphones, the relative vibration of the first housing 11 and the second housing 12 can be reduced.

[0062] The first housing 11, connected to the vibrator 3, is used to contact the user's wearing position (e.g., head). The first housing 11 transmits the vibration of the vibrator 3 to the user's wearing position, and the sound waves are transmitted to the head through bone conduction. Bone conduction is not affected by the shape of the ear and ear canal, and the transmission path has very little sound radiation and leakage. When the vibrator 3 is working, the elastic connector 4 can alleviate the problem of the vibration generated by the vibrator 3 being transmitted to the second housing 12, causing the second housing 12 to vibrate and generate sound, which then propagates through the air and causes sound leakage.

[0063] The sound waves emitted by speaker module 2 are conducted through the air and transmitted outside the housing through the sound outlet, reaching the user's ear via air conduction. When speaker module 2 is working, the diaphragm vibrates and compresses the air, causing the first housing 11 or the second housing 12 to also vibrate. The vibrating system generated by this vibration incorporates the vibrator 3 and the elastic connector 4 as vibrating masses, resulting in an even lower vibration frequency. Through the elastic connector 4, speaker module 2 allows the vibration generated by the first housing 11 or the second housing 12 to supplement extremely low frequencies below 100 Hz, further enhancing the low-frequency effect.

[0064] Therefore, this application can realize the transmission of sound waves by combining air conduction with bone conduction, and by setting up elastic connectors, it can effectively alleviate the sound leakage problem while improving the low-frequency effect.

[0065] Vibrator 3 is electrically connected to the signal processing module and generates bone conduction sound waves according to the control signal. Speaker module 2 is electrically connected to the signal processing module and generates air conduction sound waves according to the control signal.

[0066] The connection method of the vibrator 3 to the housing includes, but is not limited to, adhesive, structural clips, etc. The vibrator may include components that convert electrical signals into mechanical vibration signals, such as vibration motors, electromagnetic vibration devices, etc., wherein the signal conversion methods include, but are not limited to: electromagnetic (moving coil, moving iron, magnetostrictive), piezoelectric, electrostatic, etc. The vibrator 3 can perform mechanical vibration according to a control signal, and the mechanical vibration generates bone conduction sound waves. The vibrator 3 may also include a contact part, which is used to fit against the user's scalp when the user wears the headphones, thereby transmitting bone conduction sound waves through the user's skull to the user's cochlea.

[0067] To adjust the output characteristics (e.g., frequency, phase, amplitude, etc.) of bone conduction sound waves and air conduction sound waves, the corresponding control signals can be processed in the signal processing module to make the output air conduction sound waves and bone conduction sound waves contain specific frequency components, respectively. Alternatively, the structure or arrangement of each component in the speaker module and vibrator can be set and optimized to make the output air conduction sound waves and bone conduction sound waves contain specific frequency components, respectively.

[0068] When the headphones in this embodiment are open-back headphones, due to the open-back wearing state, low frequencies are leaked out because of the near-field open state. In the technical solution of this embodiment, the sound waves conducted through the air by the speaker module 2 are mid-to-low frequency sound waves, and the low-frequency effect can be improved by the setting of the elastic connector; the sound waves conducted through the bone by the vibrator 3 are high frequency sound waves. The crossover point between the high frequency sound waves and the mid-to-low frequency sound waves is between 800Hz and 5kHz. This application can provide users with better sound effects by applying frequency division processing to the speaker module and the vibrator.

[0069] The high frequencies handled by vibrator 3 can be conducted to the ear through the skull, without being limited by air conduction, and can provide consumers with wider bandwidth, higher frequency sound, and higher high frequency loudness.

[0070] refer to Figure 1 In the first embodiment of this application, a partition 13 is provided inside the receiving cavity to divide the receiving cavity into a first receiving chamber 1A and a second receiving chamber 1B; the partition 13 is provided with a connecting hole 1D to connect the first receiving chamber 1A and the second receiving chamber 1B; the speaker module 2 and the vibrator 3 are respectively located in the first receiving chamber 1A and the second receiving chamber 1B; wherein, the partition 13 is connected to the speaker module 2 to provide mounting support for the speaker module 2; the sound outlet 1a communicates with the first receiving chamber 1A. Thus, on the one hand, the mutual interference between the speaker module 2 and the vibrator 3 can be reduced; on the other hand, the speaker module 2 and the vibrator 3 can be arranged side by side, reducing the height of the headphones.

[0071] The speaker module 2 divides the receiving cavity into a first chamber 1c and a second chamber 1d. The second chamber 1d includes a second receiving cavity 1B and a portion of the first receiving cavity 1A that communicates with the second receiving cavity 1B through a connecting hole 1D. The housing 1 has a first through hole 1a communicating with the first chamber 1c and a second through hole 1b communicating with the second chamber 1d. The diaphragm 231 of the speaker module 2 faces the first through hole 1a, that is, the diaphragm 231 is located in the first chamber 1c, which is the front acoustic cavity, and the second chamber 1d is the rear acoustic cavity. The first through hole 1a is the sound outlet, and the second through hole 1b is the sound vent. The speaker module 2 is connected to the second housing, and the sound waves emitted by the speaker module 2 are transmitted through the first through hole 1a. The vibrator 3 is located in the second chamber 1d.

[0072] In the first embodiment, reference is made to Figure 1 The second housing 12 has an assembly hole corresponding to the second receiving chamber 1B. The second housing 11 is connected to the second housing 12 through the elastic connector 4, and the assembly hole is sealed. The plane where the sound outlet 1a is located is on the same side of the speaker module 2 as the first housing 11. In this way, air-conducted sound waves and bone-conducted sound waves can be conducted on the same side.

[0073] In the first embodiment, reference is made to Figure 1 The first housing 11 and the second housing 12 have a height difference, and the plane containing the sound outlet is located between the first housing 11 and the speaker module 2. It is understood that the first housing 11 is a protruding structure relative to the second housing 12, which can adapt to the shape of the human head.

[0074] In the technical solution of the first embodiment, reference is made to Figure 1 The elastic connector 4 is cylindrical, as shown in the reference section. Figure 8 The elastic connector 4 includes a large end 4b and a small end 4a, wherein the size of the large end 4b is larger than the size of the small end 4a; in this embodiment, the size refers to the aperture. The large end 4b is connected to the second housing 12; the small end 4a is connected to the first housing 11. The first housing 11 and the second housing 12 are connected by a conical elastic connector 4, and the elastic connector 4 is arranged around the first housing 11.

[0075] Preferably, the cross-section of the elastic connector 4 is wavy, that is... Figure 1 The portion of the elastic connector 4 located in the first housing 11 and the second housing 12 is wavy, so that the elastic connector 4 is elastic in each of the three axial directions. In particular, it can provide compressive and tensile deformation in the Z direction (height direction).

[0076] refer to Figure 2This illustrates the technical solution of a second embodiment of this application. The difference between the second embodiment and the first embodiment lies in the position of the speaker module 2 and the position and structure of the elastic connector 4. The housing corresponding to the vibrator does not protrude.

[0077] In the second embodiment, reference Figure 2 The vibrator 3 and the speaker module 2 are both connected to the first housing 11. The first housing 11 and the second housing 12 are arranged opposite to each other, and the elastic connector 4 extends circumferentially along the receiving cavity. (Reference) Figure 2 and Figure 9 The elastic connector 4 is a cylindrical shape with the same dimensions at both ends and a wavy cross-section. In this embodiment, the dimensions refer to the aperture. The wavy cross-section of the elastic connector 4 ensures that it is elastic in all three axial directions. In particular, it can provide compressive and tensile deformation in the Z-direction (height direction).

[0078] refer to Figure 3 This illustration shows the technical solution of a third embodiment of this application. The difference between the third embodiment and the second embodiment lies in the different positions of the speaker module 2 and the vibrator 3. In the third embodiment, the speaker module 2 is disposed in the second housing 12, and the vibrator 3 is disposed in the first housing 11.

[0079] For example, in the first, second and third embodiments, the height direction of the elastic connector 4 has a certain dimension, and the elastic connector 4 can provide a maximum support force of 1N (including 1N) within the linear elastic deformation range (within the range of initial elastic coefficient K ± 150%). When the support force is greater than 1N, the elastic connector 4 can still provide elastic deformation, and the elastic coefficient is within the range of initial elastic coefficient K ± 200%.

[0080] The material of the elastic connector 4 can be metal, any alloy, adhesive, rubber, silicone, polyurethane, grease, paper, fiber, braided material, etc., and can provide any material with an overall elastic coefficient. The thickness of the elastic connector 4 ranges from 0.1 mm to 80 mm.

[0081] In the first, second, and third embodiments, the speaker module 2 and the vibrator 3 are arranged side by side along the axis perpendicular to the sound outlet, and in the second and third embodiments, the speaker module 2 and the vibrator 3 are arranged radially along the elastic connector 4.

[0082] In some embodiments of this application, reference is made to Figures 1 to 7 The angle between the vibration direction of the diaphragm 231 of the speaker module 2 and the vibration direction of the vibrator 3 ranges from 0° to 180°. Thus, the positions of the speaker module 2 and the vibrator 3 can be flexibly set according to the shape of the earphone, the shape of the cavity wall, and the layout of the components within the cavity.

[0083] refer to Figure 1 , Figure 2 and Figure 3 In the first, second, and third embodiments, the vibration direction of the diaphragm 231 of the speaker module 2 is parallel to the vibration direction of the vibrator 3. When the vibration direction of the diaphragm and the vibration direction of the vibrator are in the same direction, the included angle is defined as 0°. When the vibration direction of the diaphragm and the vibration direction of the vibrator are opposite, the included angle is defined as 180°.

[0084] Figures 4-7 This is a schematic diagram of the fourth to seventh embodiments of this application. In the fourth to seventh embodiments, the vibration direction of the diaphragm 231 of the speaker module 2 is perpendicular to the vibration direction of the vibrator 3. The speaker module 2 and the vibrator 3 are arranged along the axial direction of the elastic connector 4.

[0085] refer to Figure 4 and Figure 5 The only difference between the fourth and fifth embodiments is the position of the vibrator 3. In both embodiments, the diaphragm 231 of the speaker module 2 is located in the first chamber 1c. The first chamber 1c constitutes the front acoustic cavity, and the first through hole 1a constitutes the sound outlet. The second chamber 1 constitutes the rear acoustic cavity, and the second through hole 1b constitutes the sound vent. That is, the diaphragm 231 vibrates, pushing the air in the first chamber 1c to produce sound, which is radiated through the first through hole 1a.

[0086] refer to Figure 6 and Figure 7 The difference between the sixth and seventh embodiments lies only in the position of the vibrator 3. In the sixth and seventh embodiments of this application, the diaphragm 231 of the speaker module 2 is located in the second chamber 1d. The second chamber 1d constitutes the front acoustic cavity, and the second through hole 1b constitutes the sound outlet; the first chamber 1c constitutes the rear acoustic cavity, and the first through hole 1a constitutes the sound vent. That is, the diaphragm 231 vibrates, pushing the air in the second chamber 1d to produce sound, which is radiated through the second through hole 1b.

[0087] like Figure 1As shown, in the technical solution of this embodiment, the loudspeaker module 2 includes a frame, a magnetic circuit system 22, and a vibration system 23. The frame is disposed in the receiving cavity and connected to the housing 1. The magnetic circuit system 22 is disposed in the receiving cavity and connected to the frame. The magnetic circuit system 22 has a magnetic gap 22a. The vibration system 23 includes a diaphragm 231 and a voice coil 232 connected to the diaphragm 231. The diaphragm 231 is connected to the frame and forms an air cavity 23a with the magnetic circuit system 22. The voice coil 232 is disposed on the side of the diaphragm 231 facing the magnetic circuit system 22 and inserted into the magnetic gap 22a. The side of the diaphragm 231 facing away from the voice coil 232 is disposed facing the first through hole 1a or the second through hole 1b.

[0088] After the audio signal (electrical signal) is input, it is amplified and then sent to the voice coil 232. The voice coil 232 is typically made of conductive material, and when current flows through it, it generates an alternating magnetic field. The magnetic field generated by the voice coil 232 interacts with the magnetic field generated by the magnetic circuit system 22. Because the audio signal is alternating, the magnetic field generated by the voice coil 232 is also alternating, causing the voice coil 232 to vibrate back and forth within the magnetic field of the magnetic circuit system 22. Since the voice coil 232 is connected to the diaphragm 231, the diaphragm 231 vibrates accordingly when the voice coil 232 vibrates. The vibration frequency of the diaphragm 231 is determined by the frequency of the electrical signal, and the amplitude is determined by the amplitude of the electrical signal. The vibration of the diaphragm 231 causes the surrounding air to vibrate accordingly, thus forming sound waves. These sound waves radiate out of the headphones through the sound outlet and are ultimately received by the ear.

[0089] like Figure 1 As shown, in this embodiment, the magnetic circuit system 22 includes a magnetic bowl 221 and a magnet 222. The magnetic bowl 221 is connected to the basin stand. The magnetic bowl 221 has a mounting cavity and a first hollow hole 221a communicating with the mounting cavity. The magnet 222 is disposed in the mounting cavity and is spaced apart from the cavity wall to form the magnetic gap 22a. The magnet 222 has a second hollow hole 222a communicating with the first hollow hole 221a. Thus, the first hollow hole 221a and the second hollow hole 222a can reduce weight.

[0090] like Figure 1As shown, a first tuning mesh 24 is provided corresponding to the first hollow hole 221a. The hollow design of the magnetic cup 221 and the magnet 222 allows the magnetic circuit system 22 to have a large air space. The first tuning mesh 24 is needed to adjust such a large hollow space, making the sound of the speaker module 2 more flexible and avoiding excessive airflow and noise. For example, the first tuning mesh 24 is composed of braided threads, which create resistance to the airflow. Its thickness ranges from 10um to 1000um, and the acoustic resistance it creates ranges from 1 to 3000 ohms.

[0091] Simultaneously, the first tuning mesh 24 encloses this portion of air volume into the rear cavity air of the speaker module 2, thus creating a speaker module 2 with its own rear cavity. Since this portion of the rear cavity air volume is much larger than that of a speaker module 2 without a hollow design, it has a larger rear cavity and a lower minimum resonant frequency f0, resulting in excellent low-frequency sound. Preferably, this portion of the rear cavity air volume can be designed to be relatively large. The larger this air volume, the closer it is to the air volume 1d of the second chamber of the speaker module 2 in the headphone assembly. This makes the performance of the speaker module 2 closer to the performance of the entire headphone unit, thus reducing the speaker's performance dependence on the headphone cavity. In this way, the performance of the speaker module 2 can approach the performance of the entire headphone unit.

[0092] In the technical solution of this embodiment, the magnet 222 includes a plurality of magnetic blocks, which are connected end to end in sequence to form the second hollow hole 222a, or the plurality of magnetic blocks are arranged at intervals to form the second hollow hole 222a.

[0093] Understandably, designing magnet 222 as an assembly of multiple magnetic blocks reduces the processing difficulty and increases the processing yield of magnet 222 compared to processing a magnet 222 that is entirely ring-shaped.

[0094] like Figure 1 As shown, in this embodiment, the magnetic circuit system 22 further includes a washer 223. The washer 223 is located on the side of the magnet 222 away from the magnetic cup 221. The washer 223 has a third hollow hole 223a, which communicates with the second hollow hole 222a. The washer 223 serves as a magnetic conductor. The third hollow hole 223a corresponding to the second hollow hole 222a can reduce weight while ensuring that the first air cavity 23a is connected to the first hollow hole 221a, the second hollow hole 222a, and the third hollow hole 223a, thereby increasing the air volume of the rear cavity of the speaker module 2.

[0095] like Figure 1As shown, in this embodiment, the basin stand or the magnetic bowl 221 is provided with a vent hole 2a, so that the air chamber 23a can be connected to the first chamber 1c or the second chamber 1d through the vent hole 2a. The vent hole 2a can reduce weight and also help to realize airflow exchange when the speaker module 2 is working.

[0096] like Figure 1 As shown, in this embodiment, the technical solution further includes a second tuning mesh 25 corresponding to the vent 2a. The second tuning mesh 25 adjusts the airflow resistance of the vent 2a, thereby adjusting the sound and frequency response curves of the speaker module 2. Exemplarily, the second tuning mesh 25 is composed of braided threads, creating resistance to the passing airflow; its thickness ranges from 10µm to 1000µm, and the resulting acoustic resistance ranges from 1 to 3000 ohms.

[0097] refer to Figure 1 The housing 1 is also provided with a sensor identification hole 1e, and a sensor 5 is provided in the receiving cavity, with the sensor 5 being set in accordance with the sensor identification hole 1e.

[0098] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0099] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0100] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0101] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0102] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0103] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0104] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Since these modifications and variations fall within the scope of the claims and their equivalents, this application also intends to include these modifications and variations.

[0105] The above description describes specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An earphone, characterized in that, include: The housing includes a first housing and a second housing, which are connected by an elastic connector to allow the first housing to vibrate relative to the second housing; the first housing and the second housing enclose a receiving cavity; the first housing or the second housing is provided with a sound outlet, which communicates with the receiving cavity; A speaker module is disposed within the receiving cavity, and the sound waves emitted by the speaker module are conducted through the air and transmitted through the sound outlet. A vibrator is disposed within the receiving cavity and connected to the first housing. The vibrator drives the first housing to vibrate in order to conduct sound waves through the bones.

2. The earphone according to claim 1, characterized in that, The cavity is provided with a partition to divide it into a first accommodating chamber and a second accommodating chamber; the partition is provided with a connecting hole to allow the first accommodating chamber and the second accommodating chamber to communicate; the speaker module and the vibrator are respectively disposed in the first accommodating chamber and the second accommodating chamber; wherein, the partition is connected to the speaker module; and the sound outlet is connected to the first accommodating chamber.

3. The earphone according to claim 1, characterized in that, The plane containing the sound outlet is located on the same side of the speaker module as the first housing. The first housing and the second housing have a height difference, and the plane where the sound outlet is located is located between the first housing and the speaker module.

4. The earphone according to claim 3, wherein the elastic connector is cylindrical, and the elastic connector includes a large end and a small end, the size of the large end being larger than the size of the small end; the large end is connected to the second housing; and the small end is connected to the first housing.

5. The headphones according to claim 1 or 2, characterized in that, The elastic connector is cylindrical, and the two ends of the elastic connector are the same size.

6. The earphone according to claim 1, characterized in that, The cross-section of the elastic connector is wavy.

7. The earphone according to claim 1, characterized in that, The angle between the diaphragm vibration direction of the speaker module and the vibration direction of the vibrator ranges from 0° to 180°.

8. The earphone according to claim 1, characterized in that, The speaker module is connected to the first housing or the second housing.

9. The earphone according to claim 1, characterized in that, The speaker module divides the receiving cavity into a first chamber and a second chamber; the housing has a first through hole communicating with the first chamber and a second through hole communicating with the second chamber; When the first through hole is the sound outlet, the second through hole is the sound vent, and the sound waves emitted by the speaker module are transmitted through the first through hole; When the second through hole is the sound outlet, the first through hole is the sound vent, and the sound waves emitted by the speaker module are transmitted through the second through hole.

10. The earphone according to claim 9, characterized in that, The speaker module includes: A basin stand is disposed within the receiving cavity and connected to the housing; A magnetic circuit system is disposed within the receiving cavity and connected to the basin frame; the magnetic circuit system has a magnetic gap. A vibration system includes a diaphragm and a voice coil connected to the diaphragm, the diaphragm being connected to the frame; the voice coil is disposed on the side of the diaphragm facing the magnetic circuit system and inserted into the magnetic gap; wherein the side of the diaphragm away from the voice coil is disposed facing the first through hole or the second through hole.

11. The earphone according to claim 10, characterized in that, The magnetic circuit system includes: A magnetic bowl is connected to the basin stand; the magnetic bowl has a mounting cavity and a first hollow hole communicating with the mounting cavity; A magnet is disposed within the mounting cavity and is spaced apart from the cavity wall to form the magnetic gap; the magnet has a second hollow hole, which communicates with the first hollow hole.

12. The earphone according to claim 11, characterized in that, The magnet includes multiple magnetic blocks, which are connected end to end in sequence to form the second hollow hole, or the multiple magnetic blocks are arranged at intervals to form the second hollow hole.

13. The headphones according to claim 11, characterized in that, The magnetic circuit system also includes a washer, which is located on the side of the magnet away from the magnetic bowl. The washer has a third hollow hole, which communicates with the second hollow hole.

Images