Ear clip type earphone

Abstract

The utility model discloses an ear clip type earphone, and the earphone comprises two ear shells, a connection bridge, a control panel, and an air pump. The connecting bridge is connected with the two ear shells; the earphone comprises two earlaps, a control panel and an air pump, the earlaps are provided with air bags, the control panel and the air pump are both arranged in the earlaps, and the control panel is used for inflating and deflating the air bags through the air pump so as to adjust the distance between the two earlaps. According to the technical scheme of the invention, the ear clip type earphone can adjust the clamping pressure on the ears of a user so as to meet the use requirements of different users.

Description

Technical Field

[0001] This application relates to the technical field of earphones, and particularly to a clip-on earphone. Background Art

[0002] In related technologies, clip-on earphones adopt an integrated U-shaped or C-shaped earclip structure. The earclip structure generates deformation to form a clamping force, so that the earphones can be worn on the user's ears in a form of clamping the user's auricle. However, due to the differences in the ear shapes and sizes of different people, the clamping force generated by the earclip structure of the clip-on earphones cannot be adjusted adaptively, thus failing to better meet the usage requirements of different users. Utility Model Content

[0003] An embodiment of this application provides a clip-on earphone that can adjust the clamping pressure on the user's ear to meet the usage requirements of different users.

[0004] An embodiment of this application provides a clip-on earphone, which includes two ear shells, a connecting bridge, a control board and an air pump; the connecting bridge connects the two ear shells; the control board and the air pump, wherein, an airbag is arranged on the ear shell, the control board and the air pump are both arranged in the ear shell, and the control board is used to inflate and deflate the airbag through the air pump to adjust the distance between the two ear shells.

[0005] Based on the clip-on earphone of the embodiment of this application, an airbag is arranged on at least one ear shell and the connecting bridge, or on at least one ear shell or the connecting bridge. The air pressure in the airbag corresponds to the deformation amount of the airbag, and the deformation amount corresponds to the set clamping force. Thus, by controlling the air pump through the control board to adjust the air pressure in the airbag, the deformation amount of the airbag is controlled, the clamping force of the clip-on earphone is made adjustable, and further the clamping pressure on the user's ear can be adjusted. There will be no problem of pain caused by a relatively large local clamping pressure on the ear, nor will there be a problem of loose wearing caused by a relatively small local clamping pressure on the ear, improving the wearing comfort and stability to meet the usage requirements of different users. Brief Description of the Drawings

[0006] In order to more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of this application. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without creative efforts.

[0007] Figure 1 It is a schematic structural diagram of an embodiment of the clip-on earphone of this application;

[0008] Figure 2Schematic structural diagram of another embodiment of the earclip headphones of the present application;

[0009] Figure 3 Schematic structural diagram of an embodiment in which the ear shell of the earclip headphones of the present application has a first housing and a second housing;

[0010] Figure 4 is Figure 3 Cross-sectional view of the earclip headphones shown in

[0011] Figure 5 Schematic structural diagram of another embodiment in which the ear shell of the earclip headphones of the present application has a first housing and a second housing;

[0012] Figure 6 is Figure 5 Exploded view of the earclip headphones shown in

[0013] Explanation of the reference numerals in the drawings:

[0014] 1. Earclip headphones; 10. Ear shell; 11. Airbag; 12. First housing; 121. Open end; 13. Second housing; 131. Sound outlet hole; 14. Damping member; 20. Connection bridge; 30. Control board; 40. Air pump; 50. Acoustic unit; 60. Battery; 70. Air pressure sensor; 80. Wearing detection sensor; 90. Check valve.

[0015] The realization of the purpose of the present application, functional features and advantages will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0016] To make the purpose, technical solutions and advantages of the present application clearer, the following will further describe the embodiments of the present application in detail with reference to the accompanying drawings.

[0017] When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0018] In the description of this application, it should be understood that the terms "first", "second", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances. In addition, in the description of this application, unless otherwise specified, "a plurality" means two or more. "And / or" describes the association relationship of associated objects and indicates that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally represents an "or" relationship between the associated objects before and after.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs. The terms used in the description of this specification are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0020] As a commonly used electronic product, headphones play an important role in people's lives. They receive the electrical signals emitted by a media player or receiver and use a speaker close to the ear to convert them into audible sound waves. They can be used to listen to music alone without disturbing others, or to block out the surrounding noise, which is very helpful for people using them in noisy environments such as recording studios, DJ work, travel, and sports. Headphones can be classified into air-conduction headphones, bone-conduction headphones, etc. according to their sound generation mechanism. When classified by wearing method, they include over-ear headphones, ear-hook headphones, earclip headphones, etc.

[0021] In the related art, earclip headphones adopt an integrated U-shaped or C-shaped earclip structure. The earclip structure deforms to generate a clamping force, so that the headphones can be worn on the user's ears in the form of clamping the user's auricle. However, due to the differences in the shapes and sizes of the ears of different people, the clamping force generated by the earclip cannot be adjusted adaptively. For example, for users with relatively thick auricles, due to excessive deformation of the earclip, the clamping force is too large, and it may cause pain to the user when worn for a long time, resulting in poor comfort. For users with relatively thin auricles, since the deformation of the earclip is small, the clamping force generated by the earclip is also small, which may lead to insufficient stability during wearing and the headphones are likely to slip or become loose from the ear during movement or activity. Therefore, current earclip headphones cannot well meet the usage requirements of different users.

[0022] To solve the above problems, please refer to Figures 1 to 3, this application proposes a pair of clip-on earphones 1. In the embodiments of this application, the clip-on earphones 1 include two ear shells 10, a connecting bridge 20, a control board 30 and an air pump 40. The connecting bridge 20 is generally in a "U" shape or a "C" shape, and both ends of the connecting bridge 20 are connected to the two ear shells 10.

[0023] Due to individual differences among users, the distances from the helix to the tragus vary, resulting in different sizes of the concha cavity and differences in the positions of the ear shell 10 on the front and back sides of the concha cavity. It may be close to the external acoustic meatus or the antihelix. Similarly, there are also differences in the sizes from the helix to the antihelix. Therefore, when using the clip-on earphones 1, when the distance between the two ear shells 10 is fixed, for example, for users with relatively thick auricles, the distance between the two ear shells 10 cannot adapt to the relatively thick auricles, resulting in too much clamping force on the front and back of the auricle. When worn for a long time, it may cause pain to the user, and thus the comfort is poor.

[0024] Therefore, in the clip-on earphones 1 of the embodiments of this application, an airbag 11 is provided on at least one ear shell 10 and the connecting bridge 20, or at least one ear shell 10 or the connecting bridge 20. The air pressure in the airbag 11 corresponds to the deformation amount of the airbag 11, and the deformation amount corresponds to the set clamping force. A mapping relationship is established between the deformation amount and the clamping force through big data training. The formula is F = K * X, where F is the clamping force, K is the constant of air pressure and clamping force obtained through big data training, and X is the air pressure value in the airbag 11. Thus, by adjusting the air pressure of the airbag 11 and controlling the deformation amount of the airbag 11, and by adjusting the distance between the two ear shells 10, the adjustable clamping force of the clip-on earphones 1 is realized. Furthermore, the clamping pressure on the user's ear can be adjusted, and there will be no problem of pain caused by too large local clamping pressure on the ear, nor will there be a problem of loose wearing caused by too small local clamping pressure on the ear, improving the wearing comfort and stability to meet the usage requirements of different users.

[0025] Specifically, the airbag 11 can be provided only on one of the ear shells 10. The ear shell provided with the airbag 11 can be located on the front side of the user's ear in the wearing state or on the back side of the user's ear. In both cases, the distance between the two ear shells 10 can be adjusted by inflating and deflating the airbag 11, and at the same time, the manufacturing cost can be saved. Of course, airbags 10 can also be provided on both ear shells 10, that is, in the wearing state, the distance between the two ear shells 10 can be adjusted jointly on the front and back sides of the user's ear, and then the clamping force of the two ear shells 10 on the user's ear can be adjusted.

[0026] In a specific embodiment of the present application, the airbag is provided on one of the ear shells 10. When the earclip-type earphone 1 is in a worn state, the ear shell 10 provided with the airbag 11 is disposed on the dorsal side of the user's ear and is jointly clamped and fixed with the other ear shell 10 disposed on the front side of the user's ear. The airbag 11 can also be provided on the connecting bridge 20. The airbag 11 can be disposed in the clamping space of the connecting bridge 20 or on the side of the connecting bridge 20 facing away from the clamping space (as Figure 2 shown). The connecting bridge 20 itself has a certain deformability. By the deformation of the airbag 11, the two ends of the connecting bridge 20 can approach or move away from each other in the clamping space, and the clamping force of the earclip-type earphone 1 can also be adjusted. Of course, the airbag 11 can also be jointly provided on the ear shell 10 and the connecting bridge 20, and the present application does not limit this.

[0027] Among them, when the airbag 11 is provided on the ear shell 10, or when the airbag 11 is provided on the connecting bridge 20 and is located in the clamping space of the connecting bridge 20, in the worn state, the airbag 11 is in contact with the user's ear. The material of the airbag 11 can be selected as a flexible material such as silica gel. Thus, when adjusting the clamping force, the flexible expansion and contraction structure of the airbag 11 can be used to perfectly fit the 3D surface of the ear, which can improve the wearing comfort. It should be noted that the airbag 11 on the ear shell 10 can be connected to the outside of the ear shell 10, or an installation opening is formed through the ear shell 10, and the airbag 11 covers the installation opening. Of course, the setting method of the airbag 11 on the ear shell 10 can also be other forms, and the present application does not limit this.

[0028] The control board 30 and the air pump 40 are both provided in the ear shell 10. The air pump 40 is controlled by the control board 30 and is used to inflate and deflate the airbag 11 to adjust the clamping pressure of the two ear shells 10 on the user's ear in the worn state. The air pump 40 can be selected as a piezoelectric air pump 40. The piezoelectric air pump 40 is composed of a piezoelectric vibrator, a pump valve and a pump body. When the earclip-type earphone 1 is in a worn state, the air pump 40 starts to work under the control of the control board 30, so that an alternating current power supply U is applied to both ends of its piezoelectric vibrator. The piezoelectric vibrator is radially compressed under the action of the electric field, and a tensile stress is generated inside, so that the piezoelectric vibrator bends and deforms. In this way, the piezoelectric vibrator can bend forward, the piezoelectric vibrator elongates, the volume of the pump chamber increases, the gas pressure in the chamber decreases, the pump valve opens, and the gas enters the pump chamber; or the piezoelectric vibrator bends in the reverse direction, the piezoelectric vibrator contracts, the volume of the pump chamber decreases, the gas pressure in the chamber increases, the pump valve closes, and the liquid in the pump chamber is squeezed out, forming a gentle and continuous directional flow, and then the airbag 11 can be inflated and deflated. Of course, the air pump 40 can also be of other types, and the present application does not limit this.

[0029] The ear clip-type earphone 1 further includes an acoustic unit 50. The acoustic unit 50 may include a microphone and a speaker. The speaker is used for sound input, and the speaker is used for sound output. The acoustic unit 50 is disposed in one of the two ear shells 10, and the airbag 11 and the air pump 40 are disposed in the other of the two ear shells 10, which can avoid affecting the sound transmission of the acoustic unit 50 while adjusting the clamping force of the airbag 11. In some structural forms, the ear shell 10 provided with the sounding element is also provided with an acoustic cavity and a sound outlet hole 131. The sounding element is installed in the acoustic cavity, and the sound emitted by the sounding element is transmitted outward through the acoustic cavity and the sound outlet hole 131. The ear shell 10 provided with the sounding element does not need to completely block the ear hole to squeeze the tragus for fixation, but realizes the wearing of the ear clip-type earphone 1 on the user's ear by combining the relative clamping fixation of the two ear shells 10 on the front and back sides of the ear. In this way, even if worn for a long time, it will not cause discomfort to the ear, improving the comfort during wearing.

[0030] In some embodiments, the ear clip-type earphone 1 further includes a battery 60. The battery 60 can be a lithium battery 60 or other types of batteries 60. The battery 60 is electrically connected to the control board 30 and can provide electrical energy for the acoustic unit 50 and the control board 30. Both the battery 60 and the control board 30 are disposed in the ear shell 10 provided with the airbag 11, which can facilitate the routing arrangement of the electrical connection. Of course, the battery 60 and the control board 30 can also be both disposed in the ear shell 10 not provided with the airbag 11, that is, in the same ear shell 10 as the acoustic element, or the battery 60 and the control board 30 are separately disposed in the two ear shells 10; or, there can be two batteries 60 and they are respectively disposed in the two ear shells 10. The present application does not limit this.

[0031] In some embodiments, the ear clip-type earphone 1 further includes a one-way valve 90. The one-way valve 90 is connected between the air pump 40 and the airbag 11. The one-way valve 90 is also called a non-return valve, a check valve or a reflux valve. In various mechanical equipment and systems, the one-way valve 90 is a common and important gas control element. It has the function of allowing gas to flow freely in a certain direction and preventing the flow in the reverse direction. The specific working principle is as follows: The gas flows into the one-way valve 90 from the inlet. Under the action of the forward pressure, the one-way valve 90 opens, and the gas can pass through smoothly; while under the action of the reverse pressure, the one-way valve 90 closes, effectively preventing the reverse flow of the gas. In this way, after the air pressure is adjusted and the air pump 40 stops running, under the limitation of the one-way valve 90, the gas in the airbag 11 will not flow back and leak through the air pump 40, thereby maintaining the stability of the air pressure in the airbag 11.

[0032] In some embodiments, the ear clip-type earphone 1 further includes a barometric pressure sensor 70, which is electrically connected to the control board 30 and is used to monitor the barometric pressure in the airbag 11. In addition, the ear clip-type earphone 1 further includes a wearing detection sensor 80, which is disposed in the ear shell 10 and is used to detect the wearing state of the ear clip-type earphone 1. The barometric pressure sensor 70 and the wearing detection sensor 80 are respectively disposed in one of the two ear shells 10, which can avoid the two being stacked on each other in the same ear shell 10, resulting in an overly large volume of the ear shell 10, a relatively large weight, and a bloated shape. Thus, the wearing comfort of the user can be ensured.

[0033] When the control board 30 receives the detection signal sent by the wearing detection sensor 80 indicating that the ear clip-type earphone 1 is in the wearing state, the ear clip-type earphone 1 can promptly perform a working response to ensure that the barometric pressure in the airbag 11 can be adjusted quickly and in a timely manner, improving the use efficiency and better meeting the user's usage requirements; when the ear clip-type earphone 1 is powered off, the control board 30 can also receive the detection signal sent by the wearing detection sensor 80 indicating that the ear clip-type earphone 1 is in the non-wearing state, control the one-way valve 90 to open and deflate the airbag 11 to avoid damage to the airbag 11 caused by the airbag 11 being in a pressurized state for a long time, and control the air pump 40 to shut down, thereby avoiding damage to the air pump 40 caused by the air pump 40 being in a working state for a long time, reducing the maintenance cost, and being able to save working power and improve the practicability of the ear clip-type earphone 1.

[0034] In a specific embodiment, after the ear clip-type earphone 1 is powered on, the wearing detection sensor 80 starts to detect whether the ear clip-type earphone 1 is in the wearing state and sends a detection signal. When the control board 30 receives the detection signal sent by the wearing detection sensor 80 indicating that the ear clip-type earphone 1 is in the wearing state, the control board 30 controls the barometric pressure sensor 70 to detect the actual pressure in the airbag 11, and the barometric pressure sensor 70 then sends a pressure signal to the control board 30. When the control board 30 receives a pressure signal from the barometric pressure sensor 70 that is less than the preset value, it controls the air pump 40 to inflate the airbag 11; when the control board 30 receives a pressure signal from the barometric pressure sensor 70 that is greater than the preset value, it controls the air pump 40 to deflate the airbag 11; when the control board 30 receives a pressure signal sent by the barometric pressure sensor 70 that is equal to the preset value, it controls the one-way valve 90 to close to maintain the current barometric pressure in the airbag 11, and can automatically control the barometric pressure value of the airbag 11 based on the system preset value, realizing automatic adjustment of the clamping force of the ear clip-type earphone 1, improving the convenience and reliability of use, and being able to meet the usage requirements of different users.

[0035] Among them, the wearing detection sensor 80 can be selected as an infrared sensor, a capacitive sensor, a PPG sensor, an electroencephalogram sensor or a biosensor. That is to say, the wearing detection sensor 80 can be set as any one of the above, or multiple sensors of the above can be set at the same time.

[0036] An infrared sensor (IR Sensor) is an electronic device that emits or detects infrared radiation to sense its surrounding environment. Infrared sensors can measure the heat of an object and detect motion. Usually, in the infrared spectrum, all objects radiate some form of thermal radiation. These types of radiation can be detected by infrared sensors. The emitter is an infrared LED (light-emitting diode), and the detector is an infrared photodiode that is sensitive to infrared light with the same wavelength as that emitted by the infrared LED. When the infrared light falls on the photodiode, the resistance and output voltage will change proportionally to the amount of infrared light received.

[0037] A capacitive sensor uses various types of capacitors as sensing elements to convert the measured physical quantity or mechanical quantity into a change in capacitance. In fact, it is a capacitor with variable parameters. It has good temperature stability, a simple structure, good dynamic response, high sensitivity and can achieve non-contact measurement. Therefore, it is widely used in the measurement of displacement, angle, vibration, speed, pressure, component analysis, medium characteristics, etc.

[0038] The PPG sensor uses photoplethysmography (PPG) based on Lambert-Beer's law to monitor the corresponding physical health index information. PPG is a non-invasive monitoring method for monitoring blood volume changes in living tissues by means of optoelectronic means. When a light beam of a certain wavelength irradiates the skin surface on the back of the auricle, the light beam will be transmitted or reflected to the optoelectronic receiver. During this process, due to the absorption and attenuation of the light by the skin muscles and blood at the detection end, the light intensity detected by the detector will decrease. Among them, the absorption of light by the skin muscles, tissues, etc. remains constant throughout the blood circulation, while the blood volume in the skin changes pulsatively under the action of the heart. When the heart contracts, the peripheral blood volume is the largest, the light absorption is also the largest, and the detected light intensity is the smallest; while when the heart relaxes, on the contrary, the detected light intensity is the largest. Therefore, the light intensity received by the optoelectronic receiver changes pulsatively. By converting this light intensity change signal into an electrical signal, the change in volumetric pulse blood flow can be obtained. As a wearing detection sensor 80, it can better detect whether the earclip-type earphone 1 is in a worn state.

[0039] The electroencephalogram sensor records the electrophysiological activities of the heart over time through electrocardiography (ECG) across the chest cavity to monitor the heart rate. The measured values can be transmitted to an external electronic device (such as a mobile phone, tablet computer, etc.) via a wireless connection, and the external electronic device then transmits it wirelessly to the cloud platform for processing. Through analysis, the electrocardiogram information of the user can be obtained, and thus it can be detected whether the earclip-type earphone 1 is in a worn state.

[0040] A biosensor is an instrument that is sensitive to biological substances and converts their concentrations into electrical signals for detection. Specifically, it consists of an immobilized biological sensitive material as the recognition element (including biological active substances such as enzymes, antibodies, antigens, microorganisms, cells, tissues, nucleic acids, etc.), an appropriate physical and chemical transducer (such as an oxygen electrode, a photosensitive tube, a field effect transistor, a piezoelectric crystal, etc.), and a signal amplification device, and has the functions of a receiver and a converter.

[0041] The earclip-type earphone 1 of the present application can also be communicatively connected to an external electronic device, such as a smart phone, a tablet computer, a smart wearable device, a personal computer, etc. The user can then manually adjust the air pressure of the airbag 11 of the earclip-type earphone 1 in real time on the external electronic device. The user can also dynamically adjust the air pressure of the airbag 11 according to the actual experience in the worn state, so as to realize that the clamping force is dynamically adjustable within a certain range.

[0042] In a specific implementation manner, by associating the SN of the earclip-type earphone 1 with the user account on the APP, the user's common setting values can be recorded on the APP and locally on the earclip-type earphone 1, reducing the operation frequency during adjustment and improving the user experience. After the earclip-type earphone 1 is powered on, it can be connected to the mobile phone APP via Bluetooth or the like. The user can then set the target value on the APP, and the APP sends it to the earclip-type earphone 1 via an SPP instruction or a BLE instruction. The control board 30 of the earclip-type earphone 1 then adjusts the air pressure in the airbag 11 to the target value according to the received target value. Thus, the user can controllably adjust the air pressure in the airbag 11 to realize the dynamic adjustment of the clamping force of the earclip-type earphone 1.

[0043] Please refer to 3 to Figure 5 , the ear shell 10 includes a first shell 12 and a second shell 13. The first shell 12 is connected to the connection bridge 20. The second shell 13 has a sound outlet hole 131. The acoustic unit 50 is electrically connected to the battery 60 and the control board 30. The acoustic unit 50 is installed in the first shell 12 or the second shell 13. The sound emitted by the acoustic unit 50 is transmitted to the user's ear canal opening through the sound outlet hole 131.

[0044] The materials of the first housing 12 and the second housing 13 can be plastics, silica gels, etc., and the shapes of the first housing 12 and the second housing 13 can be the same or different, and their volumes can also be the same or different. For example, the first housing 12 can be approximately a cylindrical structure or approximately a spherical structure. The second housing 13 can be approximately a cylindrical structure or approximately a rectangular structure, and the present application does not limit this.

[0045] Wherein, the second housing 13 is movably connected to the first housing 12, so that the second housing 13 can perform a telescopic movement relative to the first housing 12, so that the distance between the sound outlet hole 131 and the user's ear canal opening can be adjusted when the earclip-type earphone 1 is worn. Therefore, when the user feels that the volume of the acoustic unit 50 is too small, the distance between the sound outlet hole 131 and the ear canal opening can be shortened by telescoping the second housing 13 to increase the sound. When the user feels discomfort due to the unreasonable position of the second housing 13 in the ear canal opening area, the distance between the second housing 13 and the ear canal opening is increased by telescoping the second housing 13. With such a setting, the earclip-type earphone 1 of the present application can be suitable for users with different ear sizes, further increasing the practical range of the earclip-type earphone 1.

[0046] There are various ways of movably connecting the second housing 13 and the first housing 12. In some embodiments of the present application, the second housing 13 is sleeved on the first housing 12, and the second housing 13 is slidable relative to the first housing 12. It can be understood that the second housing 13 can be sleeved outside the first housing 12, or the first housing 12 can be sleeved outside the second housing 13. Among them, the sleeved form can enable the second housing 13 and the first housing 12 to conveniently adjust the position of the second housing 13 relative to the first housing 12. In some other embodiments, the second housing 13 and the first housing 12 can also be in the form of screw connection, snap connection, etc. Here, the present application does not limit the specific connection method between the second housing 13 and the first housing 12.

[0047] In the solution where the second housing 13 is sleeved outside the first housing 12, the first housing 12 is provided with an installation cavity, and the installation cavity has an opening 121 on the side away from the connection bridge 20. Among them, the acoustic unit 50 can be arranged in the installation cavity or in the second housing 13; the second housing 13 is slidably sleeved outside the first housing 12, and the sound outlet hole 131 communicates with the installation cavity through the opening 121. With such a setting, the user can adjust the position of the second housing 13 relative to the first housing 12 by sliding the second housing 13 according to his own needs, so as to adapt to the ear sizes and ear canal positions of different users, so as to obtain better wearing comfort and sound quality performance.

[0048] The second shell 13 is sleeved on the outside of the first shell 12, making the product appearance more beautiful and compact. Moreover, the first shell 12 can be better integrated with the second shell 13, thereby reducing protruding parts and enhancing the overall aesthetics. In addition, the second shell 13 can protect the first shell 12 while the user can easily remove the second shell 13 and clean the second shell 13. It can be understood that the opening 121 formed at the end of the first shell 12 away from the connecting bridge 20 can make the assembly and maintenance of the acoustic unit 50 more convenient, and in other structural forms, the end of the first shell 12 away from the connecting bridge 20 can also be a wall body provided with a cover opening 121, and a sound outlet is provided on the wall body.

[0049] In order to prevent the second shell 13 from rotating around the first shell 12, the shape of the part where the first shell 12 and the second shell 13 are connected is adapted to the shape of the inner hole of the second shell 13, and the first shell 12 and the second shell 13 are limited in the circumferential direction of the second shell 13 and will not rotate with each other. That is, the positive projection of the first shell 12 along the sliding direction of the second shell 13 is non-circular, for example, it can be an ellipse, a square circle, etc. The inner contour shape of the second shell 13 is adapted to the outer contour shape of the second shell. In this way, the first shell 12 can prevent the second shell 13 from rotating when sliding, so that even if the user moves or moves his head, the second shell 13 will not rotate or shift around the first shell 12 accidentally, ensuring the stability of the position of the second shell 13 and the sound quality of the earphone. Of course, in some other embodiments, the outer surface of the first shell 12 can also be provided with a limiting surface, wherein at least part of the limiting surface is a plane. In this way, the second shell 13 can also be prevented from rotating around the first shell 12.

[0050] In the solution where the second shell 13 is sleeved inside the first shell 12, the second shell 13 can be slidably nested inside the first shell 12 and can at least partially extend out of the first shell 12 through the opening 121, wherein the acoustic unit 50 can be arranged in the installation cavity or in the second shell 13. Figure 6 As shown in the example, the acoustic unit 50 is arranged on the second shell 13. In this way, the first shell 12 can protect the second shell 13 and improve the service life of the second shell 13.

[0051] In order to improve the stability of the second shell 13 and the first shell 12 during the sliding process, the ear shell 10 of the embodiment of the present application is also provided with a damping member 14, which relatively fixes the first shell 12 and the second shell 13 after the telescopic movement. The specific form of the damping member 14 can be a block or a ring. Here, the present application does not limit the specific installation form of the damping member 14. In addition, the material of the damping member 14 can include but is not limited to rubber, silicone, polyurethane, etc.

[0052] In some embodiments, such as Figure 5 and Figure 6 shown, the damping member 14 is located between the first housing 12 and the second housing 13. The damping member 14 can be a damping ring or a damping sheet clamped between the first housing 12 and the second housing 13. Alternatively, the damping member 14 is a damping ring or a damping sheet, and the damping member 14 is fixed to one of the first housing 12 and the second housing 13 and elastically abuts against the other of the first housing 12 and the second housing 13.

[0053] It can be understood that the damping ring and the damping sheet can be selectively provided or provided simultaneously. The damping ring and the damping sheet can provide a damping effect between the second housing 13 and the first housing 12, so that the second housing 13 can be relatively fixed at different positions of the first housing 12. Of course, in some other embodiments, the damping member 14 can also be a card slot provided at intervals on the outer wall of one of the second housing 13 or the first housing 12 and a buckle provided on the inner wall of the other of the first housing 12 or the second housing 13. By engaging the buckle with different card slots, the second housing 13 can be relatively fixed at different positions of the first housing 12.

[0054] In some embodiments, the ear shell 10 is further provided with a metal mesh (not shown in the figure). The metal mesh is installed on the second housing 13 and covers the sound outlet hole 131. The metal mesh is mainly used to prevent external impurities from entering the earphone interior through the sound outlet hole 131, protect the internal sound generating unit and other components, and extend the service life of the device.

[0055] In order to further achieve a relatively comfortable clamping force of the ear clip-type earphone 1 on the ear, the ear clip-type earphone 1 further includes a memory metal wire. The memory metal wire is installed on the connecting bridge 20, which can make the connecting bridge 20 have a resilience. When the airbag 11 is arranged on the connecting bridge 20, the connecting bridge 20 can have a certain deformation ability and can also ensure the structural strength of the connecting bridge 20.

[0056] It should be noted that the memory metal wire is made of an alloy with memory performance, usually composed of materials such as nickel, titanium, platinum, copper, silver, etc. The memory metal wire has high elasticity, wear resistance and stability, and it can maintain its original shape and performance in different temperature and humidity environments. Thus, during the wearing process, it can ensure that there is an appropriate pressure between the two ear shells 10 and the ear, making the ear clip-type earphone 1 more firmly fixed around the ear and not easily loosening or swinging. Moreover, the memory metal wire has high elasticity and durability, can better adapt to the ear sizes of different users to meet the usage needs of different users, and can also withstand long-term stretching and compression without being easily deformed or fatigued, extending the service life of the ear clip-type earphone 1.

[0057] In some embodiments, the earclip-type earphone 1 further includes an FPC passing through the connection bridge 20. Wiring holes are provided on both ear shells 10. The FPC passes through the wiring holes and is connected to electronic components such as a battery 60, a control board 30, and an acoustic unit 50 through the wiring holes. Such a setting enables the FPC to be reasonably arranged and the electronic components that require power supply, which is beneficial to the compactness of the overall structure and the aesthetic appearance. Of course, in some other embodiments, a wiring groove may also be provided on the outer wall surface of the connection bridge 20, and the FPC is respectively connected to electronic components such as a battery 60, a control board 30, and an acoustic unit 50 through the wiring groove. The present application is not limited thereto.

[0058] Furthermore, it should be noted that the above-mentioned shape memory wire is arranged in parallel with the FPC. It should be noted that the parallel arrangement means that the shape memory wire and the FPC extend in the same direction and have a gap between them. With such an arrangement, a distance can be maintained between the shape memory wire and the FPC, avoiding cross-interference between them. This can ensure the stable transmission of audio signals, avoid the influence of external interference on audio quality, and moreover, can make the spatial layout of the earclip-type earphone 1 more reasonable. In addition, while the shape memory wire makes the connection bridge 20 elastic, it can provide a certain supporting effect on the connection bridge 20. When the earclip-type earphone 1 is subjected to external punching force, the shape memory wire can play a certain protective role on the FPC, avoiding risks such as pulling and bending of the FPC.

[0059] In the drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components; in the description of the present application, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only for illustrative purposes and cannot be understood as a limitation of the present application. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0060] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An earclip-type earphone, characterized in that, Comprising: Two ear shells; A connecting bridge connecting the two ear shells; And A control board and an air pump. Wherein, an airbag is provided on the ear shell, and both the control board and the air pump are arranged inside the ear shell. The control board is used to inflate and deflate the airbag through the air pump to adjust the distance between the two ear shells.

2. The earclip-type earphone according to claim 1, wherein It further includes an acoustic unit, which is arranged in one of the two ear shells, and the airbag and the air pump are arranged in the other of the two ear shells.

3. The earclip-type earphone according to claim 1, wherein The airbag is arranged in contact with the user's ear in the wearing state.

4. The earclip-type earphone according to claim 1, wherein It further includes a battery, which is electrically connected to the control board, and both the battery and the control board are arranged in the ear shell provided with the airbag.

5. The earclip-type earphone according to any one of claims 1 to 4, characterized in that, It further includes a pressure sensor, which is electrically connected to the control board and is used to monitor the air pressure in the airbag.

6. The earclip-type earphone according to claim 5, wherein, It further includes a wearing detection sensor, which is arranged inside the ear shell and is used to detect the wearing state of the ear clip-type earphone.

7. The earclip-type earphone according to claim 6, wherein The pressure sensor and the wearing detection sensor are respectively arranged in one of the two ear shells; The wearing detection sensor is an infrared sensor, a capacitive sensor, a PPG sensor, an electroencephalogram sensor or a biosensor.

8. The earclip-type earphone according to claim 6, wherein, It further includes a one-way valve, which is connected between the air pump and the airbag.

9. The earclip-type earphone according to claim 8, wherein The control board is used to control the air pump to shut down when receiving the detection signal sent by the wearing detection sensor indicating that the ear clip-type earphone is in an unworn state; The control board is used to control the air pump to inflate the airbag when receiving the detection signal sent by the wearing detection sensor indicating that the ear clip-type earphone is in a worn state and the pressure signal sent by the pressure sensor is less than a preset value; Or, when receiving the pressure signal sent by the pressure sensor is greater than the preset value, control the air pump to deflate the airbag; Or, when receiving the pressure signal sent by the pressure sensor is equal to the preset value, control the one-way valve to close to maintain the current air pressure in the airbag.

10. The earclip-type earphone according to claim 1, wherein The air pump is a piezoelectric air pump.

11. The earclip-type earphone according to claim 2, wherein, The ear shell provided with the acoustic unit includes: A first shell, connected to the connecting bridge; A second shell, having a sound outlet hole. The first shell and the second shell are movably connected. The acoustic unit is installed on the first shell or the second shell. The sound emitted by the acoustic unit is transmitted to the user's ear canal through the sound outlet hole, so that the ear clip-type earphone can adjust the distance between the sound outlet hole and the user's ear canal when worn.

12. The earclip-type earphone according to claim 11, wherein, The second shell is sleeved on the first shell, and the second shell is slidable relative to the first shell.

13. The earclip-type earphone according to claim 11, characterized in that, It further includes a damping member, which is arranged between the first shell and the second shell and is used to provide damping when the first shell and the second shell are movably connected.

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