Open type earphone

Abstract

The utility model discloses an open type earphone, and the earphone comprises a fixed part and a sound production part. The sound production part comprises an ear shell, a loudspeaker single body, a telescopic mechanism and a pipe nozzle, the ear shell is connected with the fixing part, the loudspeaker single body is arranged in the ear shell, the pipe nozzle is partially located outside the ear shell, and the pipe nozzle is telescopic relative to the ear shell so as to adjust the distance between the pipe nozzle and an ear canal opening of a user; sound emitted by the loudspeaker single body is transmitted outwards through the pipe nozzle; wherein the telescopic mechanism is arranged in the ear shell, and the telescopic mechanism is connected with the pipe nozzle and the ear shell and used for driving the pipe nozzle to stretch out and draw back when the pipe nozzle is pressed by external force. According to the technical scheme, the pipe nozzle can stretch out and retract relative to the ear shell, so that the use requirements of different users are met.

Description

TECHNICAL FIELD

[0001] The present application relates to earphone technical field, especially relates to an open earphone. BACKGROUND

[0002] In the related art, due to the design of the open earphone, it will not extend into the ear canal of the user, and they are usually more comfortable than the closed earphone because they allow air circulation, reducing the heat and humidity of the ear. Therefore, the open earphone is suitable for long-time wearing application and can be applied in many scenes.

[0003] In the wearing state, due to the difference in the shape and size of the ears of different people, the sound effect is different, so the open earphone cannot better meet the use requirements of different users. CONTENT OF THE UTILITY MODEL

[0004] The embodiment of the present application provides an open earphone, which can realize the extension and contraction of the nozzle relative to the ear shell to meet the use requirements of different users.

[0005] The embodiment of the present application provides an open earphone, which comprises a fixed part and a sound generating part; the sound generating part comprises an ear shell, a speaker unit, an extension mechanism and a nozzle, the ear shell is connected with the fixed part, the speaker unit is arranged in the ear shell, the nozzle is partially arranged outside the ear shell, and the nozzle is telescopic relative to the ear shell to adjust the distance between the nozzle and the ear canal of the user; the sound emitted by the speaker unit is propagated outward through the nozzle; wherein the extension mechanism is arranged in the ear shell, the extension mechanism is connected with the nozzle and the ear shell, and is used for driving the nozzle to extend or contract when the nozzle is pressed by external force.

[0006] Based on the open earphone of the embodiment of the present application, the open earphone comprises a fixed part and a sound generating part, the sound generating part comprises an ear shell, a speaker unit, an extension mechanism and a nozzle, the ear shell is connected with the fixed part, the speaker unit is arranged in the ear shell, the extension mechanism is arranged in the ear shell, the nozzle is connected with the extension mechanism and exposed to the ear shell, the sound emitted by the speaker unit is propagated outward through the extension mechanism and the nozzle, and in the wearing state, the nozzle arranged on the sound generating part can have a gap between the nozzle and the ear canal of the user, and will not directly extend into the ear canal of the user to transmit sound, so as not to block the ear canal, increase air circulation and make the wearing more comfortable. Of course, the nozzle can also extend into the ear canal of the user to improve the sound effect.

[0007] The telescopic mechanism connects the nozzle and the ear shell. When the nozzle is pressed by external force, the telescopic mechanism can drive the nozzle to stretch or retract. The user can adjust the distance between the nozzle and the ear canal by adjusting the telescopic state of the nozzle, so as to adapt to the size of different people's ears, thereby avoiding the problem that the volume is too small during playing due to the large distance between the nozzle and the ear canal, improving the listening experience, and meeting the use requirements of different users. BRIEF DESCRIPTION OF DRAWINGS

[0008] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor based on the structures shown in the drawings.

[0009] Figure 1 FIG. 1 is a structural schematic diagram of an embodiment of the open earphone of the present application;

[0010] Figure 2 FIG. 2 is a structural schematic diagram of another embodiment of the open earphone of the present application;

[0011] Figure 3 FIG. 3 is an exploded schematic diagram of the open earphone shown in FIG. 1; Figure 1

[0012] Figure 4 FIG. 4 is a sectional schematic diagram of the open earphone shown in FIG. 1; Figure 1

[0013] Figure 5 FIG. 5 is a structural schematic diagram of a fixed sleeve in an embodiment of the telescopic mechanism shown in FIG. 1; Figure 3

[0014] Figure 6 FIG. 6 is a structural schematic diagram of another embodiment of the telescopic mechanism shown in FIG. 1. Figure 3 BRIEF DESCRIPTION OF DRAWINGS

[0015]

[0016] ​​​​1. Open-ear headphones; 10. Fixing part; 11. Housing; 12. Connecting bridge; 13. Ear hook; 20. Sound-producing part; 21. Ear shell; 211. First shell; 212. Second shell; 22. Telescopic mechanism; 221. Fixing sleeve; 2211. Ratchet; 2211a. First ratchet; 2211b. Second ratchet; 2212. Guide groove; 2213. Limiting groove; 2214. Buckle; 222. First tube; 2221. Driving tooth; 2222. Limiting rib; 223. Second tube; 2231. Flange; 2232. Mating surface; 224. Elastic member; 225. Ball; 226. Round groove; 227. Guide block; 23. Nozzle; 24. Damping member; 25. Cover; 251. Buckle groove; 252. Sound hole.

[0017] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of this application clearer, the following part will further describe the embodiments of this application in detail with reference to the accompanying drawings.

[0019] 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. Instead, they are merely examples of devices and methods consistent with some aspects of the present application, as detailed in the appended claims.

[0020] In the description of this application, it should be understood that the terms "first", "second", etc. are used for descriptive purposes only and should not be understood 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, "multiple" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the previous and subsequent associated objects are in an "or" relationship.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs. The terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit this application. The term "and / or" as used herein includes any and all combinations of one or more of the relevant listed items.

[0022] With the development of society, various electronic devices are emerging, and earphones have become a necessity in people's lives, almost accompanying people's lives at all times. It receives the electrical signals sent by the media player or receiver, and uses the speaker close to the ear to convert it into audible sound waves, which can be listened to alone without affecting others. It can also isolate the surrounding sound, which is very helpful for people using it in noisy environments such as recording studios, DJs, travel, sports, etc.

[0023] Open earphones (OWS, Open Wearable Stereo) use air conduction to convert electrical signals into sound wave vibration signals through traditional air conduction transmission media such as the outer ear membrane, eardrum, and tympanic cavity. The vibration signals are directly transmitted to the auditory nerve through the temporal bone. Open earphones do not block the entrance of the ear canal, nor do they directly send music to the eardrum, so they naturally help reduce hearing damage. This open earphone design allows users to hear the surrounding environment while enjoying music, improving safety, and the open earphone design allows air circulation, reducing heat and humidity in the user's ear when wearing, and is generally more comfortable than closed earphones. Therefore, open earphones are suitable for long-term wear applications and can be applied in many scenarios.

[0024] In related technologies, due to differences in ear shape and size between different people, the distance between the nozzle part of the open earphone and the ear canal opening of the user's ear cannot be adaptively adjusted in the wearing state, so it cannot better meet the use requirements of different users.

[0025] To solve the above problems, please refer to Figures 1 to 3 The present application provides an open earphone 1, which can include an ear clip earphone and an ear hanging earphone. The ear clip earphone adopts an ear clip structure, which generates deformation to form a clamping force, so that the earphone can be worn on the user's ear in the form of clamping the user's pinna. The ear hanging earphone is hung on the back of the user's ear through the ear hanging structure to wear the earphone on the user's ear.

[0026] In the embodiment of the present application, the open earphone 1 comprises a fixed part 10 and a sound producing part 20. The sound producing part 20 comprises an ear shell 21, a speaker unit (not shown in the figure), an extension mechanism 22 and a nozzle 23. The ear shell 21 is connected with the fixed part 10, the speaker unit is arranged in the ear shell 21, the extension mechanism 22 is arranged in the ear shell 21, and the nozzle 23 is connected with the extension mechanism 22 and partially located outside the ear shell 21. The sound emitted by the speaker unit is propagated outwardly through the extension mechanism 22 and the nozzle 23. The material of the nozzle 23 can be plastic or metal. In the wearing state, the nozzle 23 can have a spacing with the ear canal opening of the user and will not directly extend into the ear canal opening of the user to transmit sound, so as not to block the ear canal opening and increase the air flow, thereby making the wearing more comfortable. Of course, the nozzle 23 can also extend into the ear canal opening of the user to improve the sound effect.

[0027] In the wearing state, the sound producing part 20 is located in or partially located in the concha cavity, and the fixed part 10 is located on the back of the auricle, such as the back of the helix or the back of the antihelix. The sound producing part 20 cooperates with the fixed part 10 to hold the open earphone 1 stably on the ear of the user.

[0028] Due to the individual differences of users, the distance from the helix to the antihelix varies, resulting in different sizes of the concha cavity and different positions of the sound producing part 20 in the concha cavity, which are close to the external acoustic meatus or close to the antihelix. Similarly, the size of the helix to the antihelix also varies. Therefore, in the case that the connection form of the sound producing part 20 and the fixed part 10 is fixed, for example, for users with relatively thick auricles, the spacing between the nozzle 23 and the ear canal opening cannot adapt to the thick auricle, resulting in a large spacing between the nozzle 23 and the ear canal opening, which easily causes the volume to be too small during playing, affecting the listening experience.

[0029] The nozzle 23 of the technical scheme of the present application is relatively extendable with respect to the ear shell 21. The extension mechanism 22 connects the nozzle 23 and the ear shell 21. The extension mechanism 22 can drive the nozzle 23 to extend or retract when the nozzle 23 is pressed by an external force. In this way, in the wearing state, the user can adjust the distance between the nozzle 23 and the ear canal opening by adjusting the extension state of the nozzle 23, so as to adapt to the size of different ears, thereby avoiding the case that the large spacing between the nozzle 23 and the ear canal opening causes the volume to be too small during playing, and further improving the listening experience and meeting the use requirements of different users.

[0030] In some embodiments, the open earphone 1 further comprises a battery and a control circuit board. The battery provides electric energy for the speaker unit and the control circuit board. The control circuit board is electrically connected with the speaker unit.

[0031] As Figure 1As shown, when the open-ear headphone 1 is an earhook headphone, the fixed part 10 includes a housing 11 and an earhook 13. The earhook 13 connects the housing 11 and the sound-emitting part 20. The fixed part 10 is configured as an earhook 13 structure for mounting on the back of the user's ear. The control circuit board and battery are located within the housing 11. Of course, the control circuit board and battery can also be located separately within the housing 11 and the sound-emitting part 20, or both can be located within the sound-emitting part 20. When worn, the housing 11 is located on the back of the user's auricle, and the earhook 13 is mounted on the back of the user's ear.

[0032] like Figure 2 As shown, when the open-earphone 1 is an ear clip-on earphone, the fixing portion 10 includes a housing 11 and a connecting bridge 12. The connecting bridge 12 connects the housing 11 and the sound-emitting portion 20, and the housing 11 is arranged opposite the sound-emitting portion 20. The control circuit board and battery are arranged in the housing 11. Of course, the control circuit board and battery can also be arranged in the housing 11 and the sound-emitting portion 20 separately, or both are arranged in the sound-emitting portion 20. When worn, the housing 11 is located on the back of the user's auricle and cooperates with the sound-emitting portion 20 to clamp the user's ear.

[0033] In some embodiments, please refer to Figures 3 to 5 The telescopic mechanism 22 includes a fixed sleeve 221, a first tube 222, a second tube 223, and an elastic member 224. The fixed sleeve 221 is fixedly connected to the ear shell 21 by welding, screwing, etc. The fixed sleeve 221 can be specifically configured as a hollow cylinder of a certain length, and the shape of the cylinder can be approximately cylindrical. The inner wall surface of the fixed sleeve 221 is provided with a plurality of ratchet teeth 2211 arranged at intervals and a guide groove 2212 located between two adjacent ratchet teeth 2211. The ratchet teeth 2211 can include a first ratchet tooth 2211a and a second ratchet tooth 2211b. In the front-to-back direction, the first ratchet tooth 2211a extends farther rearward than the second ratchet tooth 2211b.

[0034] The first tube 222 is sleeved within the fixed sleeve 221, and the nozzle 23 is connected to the first tube 222. A driving tooth 2221 is formed on the end of the first tube 222 away from the nozzle 23. The second tube 223 is sleeved within the first tube 222. The end of the second tube 223 away from the nozzle 23 extends outside the first tube 222, and a flange 2231 is provided on the outer wall of the second tube 223. The flange 2231 can slide along the guide groove 2212, and the flange 2231 meshes with the ratchet teeth 2211 and slidably cooperates with the driving tooth 2221.

[0035] The flange 2231 meshes with the ratchet 2211 and is in sliding fit with the driving tooth 2221, and the matching surface 2232 between the flange 2231 and the driving tooth 2221 has an angle with the rotating direction of the first tube body 222, which ensures the coincidence of the flange 2231 and the ratchet 2211, improves the transmission efficiency of the meshing transmission between the flange 2231 and the ratchet 2211, and ensures the continuity of the sliding fit between the flange 2231 and the driving tooth 2221, and improves the transmission fit efficiency of the first tube body 222 and the second tube body 223.

[0036] The elastic member 224 can be selected as a spring, and can also be selected as a high polymer material which is significantly deformed under weak stress and can quickly recover to the original state and size after stress relaxation. One end of the elastic member 224 abuts against the ear shell 21, and the other end abuts against the second tube body 223, that is, the nozzle 23 is located at the front side of the sound generating part 20, and in the direction from front to back, one end of the elastic member 224 is pressed against the inner side wall of the second tube body 223, and the other end is relatively pressed against the ear shell 21, and of course, the other end can be relatively pressed against the cover 25, thereby providing the elastic force required by the flange 2231 of the second tube body 223 in the process of sliding with the guide groove 2212, or the flange 2231 meshes with the ratchet 2211, or the flange 2231 is in sliding fit with the driving tooth 2221, and ensuring the stability in the process of stretching and retracting.

[0037] For example, when the stretching and retracting mechanism 22 is in the stretched state, that is, the nozzle 23 is stretched relative to the ear shell 21, the stretching and retracting mechanism 22 is switched from the retracted state to the stretched state, the flange 2231 is limited in the guide groove 2212, and the second tube body 223 is in the locked state;

[0038] Pressing the nozzle 23 makes the nozzle 23 drive the first tube body 222 to slide forward and backward relative to the fixed sleeve 221, and in the process of sliding of the first tube body 222, the driving tooth 2221 is in sliding fit with the flange 2231, and pushes the second tube body 223 to rotate by a certain angle, so that the matching surface 2232 of the flange 2231 is separated from the groove wall of the guide groove 2212, and the matching surface 2232 of the flange 2231 meshes with the ratchet 2211, and the second tube body 223 makes one-way intermittent motion, and is driven to slide from the first ratchet 2211a to the second ratchet 2211b, so as to switch the stretching and retracting mechanism 22 between the stretched state and the retracted state;

[0039] Pressing the nozzle 23 again makes the nozzle 23 retract relative to the ear shell 21, and the stretching and retracting mechanism 22 is switched from the stretched state to the retracted state, and the flange 2231 is locked on the ratchet 2211, that is, the flange 2231 is switched from the first ratchet 2211a to the second ratchet 2211b and is locked on the second ratchet 2211b, and at this time, the stretching and retracting mechanism 22 is in the retracted state.

[0040] In some embodiments, one of the fixed sleeve 221 and the first tube body 222 is provided with a limiting rib 2222, and the other of the two is provided with a limiting groove 2213. The limiting rib 2222 and the limiting groove 2213 both extend along the telescopic direction of the telescopic mechanism 22, and the limiting rib 2222 can be slidably embedded in the limiting groove 2213. In a specific embodiment of the present application, the limiting rib 2222 can be optionally arranged on the outer peripheral wall of the first tube body 222, and the limiting groove 2213 can be optionally opened on the inner wall of the fixed sleeve 221. During the telescopic movement of the first tube body 222 relative to the fixed sleeve 221, the first tube body 222 can be limited in the fixed sleeve 221, and the rotation of the first tube body 222 in the circumferential direction of the fixed sleeve 221 can be limited, so that the driving teeth 2221 can slide with the flange 2231 and push the second tube body 223 to rotate a certain angle. In addition, it can also ensure that the first tube body can keep sliding in the fixed sleeve 221 without detaching from the end of the fixed sleeve 221 adjacent to the sound outlet.

[0041] In some embodiments, the first tube body 222 and the nozzle 23 can be an integral structure and can be made of plastic or metal. This ensures the connection strength between the first tube body 222 and the nozzle 23, thereby improving transmission stability and facilitating manufacturing. The two can be integrally formed by casting or other methods to reduce production costs. Of course, the first tube body 222 and the nozzle 23 can also be provided as separate bodies to facilitate disassembly and replacement, thereby reducing maintenance costs. In this case, the materials of the first tube body 222 and the nozzle 23 can be the same or different, and this application does not impose any restrictions on this.

[0042] In some embodiments, the open-ear headphone 1 further includes a damping member 24, which is disposed between the fixed sleeve 221 and the first tube 222. The damping member 24 is configured to provide a damping force during the telescopic movement of the first tube 222 relative to the fixed sleeve 221. This damping member 24 can restrict the first tube 222 to the fixed sleeve 221, thereby increasing the stability of the first tube 222 during its movement relative to the fixed sleeve 221. The damping member 24 can be block-shaped or ring-shaped. Furthermore, the material of the damping member 24 can include, but is not limited to, rubber, silicone, polyurethane, etc. This application does not impose any restrictions on the specific mounting form or material of the damping member 24.

[0043] It should be noted that the above content introduces a specific implementation form of the telescopic mechanism 22. It can be understood that the telescopic mechanism 22 may not adopt the ratchet 2211 structure introduced in the above embodiment, but may also adopt the existing more mature circular groove or heart-shaped groove structure to achieve telescopic reciprocating motion.

[0044] For example, Figure 3 and Figure 6As shown, in the structure of the telescopic mechanism 22 adopting the meander-shaped slot, the telescopic mechanism 22 comprises a fixed sleeve 221, a first pipe body 222 and an elastic body. The fixed sleeve 221 is fixedly connected with the ear shell 21, the first pipe body 222 is sleeved in the fixed sleeve 221, the nozzle 23 is connected with the first pipe body 222, and the elastic body is arranged between the fixed sleeve 221 and the first pipe body 222.

[0045] One of the inner wall of the fixed sleeve 221 or the outer wall of the first pipe body 222 is provided with a transverse slot, the telescopic mechanism further comprises a ball 225, the ball 225 is embedded in the transverse slot and can move in the transverse slot, the transverse slot limits the ball 225, so that when the first pipe body 222 telescopes, the ball 225 can only move horizontally along the extension direction of the transverse slot. The other of the inner wall of the fixed sleeve 221 or the outer wall of the first pipe body 222 is provided with a meander-shaped slot 226, the ball 225 is clamped in the meander-shaped slot 226 and can move along the meander-shaped slot 226 with the telescopic movement of the first pipe body 222.

[0046] Figure 6 For the movement track of the ball 225 along the meander-shaped slot 226, in the initial state, the ball 225 is located at the position 225a, when the first pipe body 222 moves backward under pressure, the ball 225 rises, the telescopic mechanism 22 is further provided with a guide block 227, the guide block 227 has an inclined angle, the inclined angle will guide the ball 225 to the left side of the upward channel in the process of rising of the ball 225, the ball will walk to the left side at the position 225b, so as to enter the upward channel; when the first pipe body 222 continues to move backward, to the position 225c of the ball 225, due to the limitation of the meander-shaped slot 226, the first pipe body 222 cannot continue to move backward any more;

[0047] Due to the action of the elastic body, when the nozzle 23 is abandoned to be pressed, the first pipe body 222 will move forward, at this time, the ball will enter the downward channel along the way, and be located at the position 225d to be in the locking state, at this time, the first pipe body 222 cannot rise back even under the action of the elastic body, the movement of the first pipe body 222 is stopped, and the contraction movement of the nozzle 23 is limited.

[0048] When the nozzle 23 is pressed again to make the first pipe body 222 move backward, the inclined angle of the guide block 227 will guide the ball 225 to the right side, so that the ball 225 reaches the position 225e, at this time, the first pipe body 222 cannot move backward any more;

[0049] When the nozzle 23 is released, the first tube 222 moves forward due to the elastic body. At this time, the ball 225 drops to the position 225f and then returns to the position 225a and is clamped by the groove wall of the meandering groove 226, so that the first tube 222 cannot move forward any more. Thus, the movement of the ball 225 along the meandering groove 226 is completed, that is, the movement of the first tube 222 is completed, that is, the extension, clamping, contraction and clamping of the first tube 222.

[0050] In addition, the position of the elastic body is not limited to the position between the fixed sleeve 221 and the first tube 222. The first tube 222 can be extended downward out of the fixed sleeve 221, and the elastic body can be connected to the lower end of the fixed sleeve 221 and the first tube 222. In this way, the first tube 222 can also be extended and contracted along the fixed sleeve 221. The elastic body can also be arranged at other positions as long as the first tube 222 can be extended and contracted along the fixed sleeve 221. The specific implementation form of the telescopic mechanism 22 can also be other structures, and the telescopic mechanism 22 is not limited to the structure shown in the above embodiment. The telescopic mechanism 22 can also be other structures as long as the telescopic mechanism 22 can be extended and contracted along the fixed sleeve 221. The present application does not limit the telescopic mechanism 22.

[0051] In some embodiments, the open earphone 1 further comprises a cover 25 connected to the end of the fixed sleeve 221 away from the nozzle 23, and the elastic member 224 is elastically supported between the cover 25 and the first tube 222. The cover 25 can effectively prevent too much impurities from entering the ear shell 21 from the nozzle 23 and the telescopic mechanism 22, thereby interfering with the sound generation of the loudspeaker unit.

[0052] One of the cover 25 and the fixed sleeve 221 is provided with a buckle 2214, and the other is provided with a buckle groove 251. The buckle 2214 and the buckle groove 251 are connected and matched to achieve detachable connection of the cover 25 and the fixed sleeve 221. In this way, the telescopic mechanism 22 can be detached from the cover 25, which is convenient for maintenance, cleaning and replacement. In a specific embodiment of the present application, the buckle 2214 can be arranged on the cover 25, and the buckle groove 251 can be arranged on the fixed sleeve 221. Of course, the cover 25 and the fixed sleeve 221 can also be an integral structure, which can reduce the production cost and simplify the installation steps.

[0053] In addition, as shown in Figure 3 The cover 25 is provided with a sound hole 252 communicating with the fixed sleeve 221. The sound generated by the loudspeaker unit can be transmitted outward through the sound hole 252, thereby ensuring effective transmission of the sound.

[0054] In some embodiments, please refer to Figures 1 to 3The ear shell 21 can include a first shell 211 and a second shell 212 in communication, the fixed part 10 is connected with the second shell 212, the telescopic mechanism 22 is arranged in the first shell 211, and the nozzle 23 is connected with the telescopic mechanism 22 and exposed to the first shell 211.

[0055] The loudspeaker unit can be arranged on the first shell 211 or the second shell 212. When the loudspeaker unit is arranged on the first shell 211, the first shell 211 bears the loudspeaker unit, the nozzle 23 and the telescopic mechanism 22, so that the installation steps of the three in the ear shell 21 are simple, and the installation cost is reduced. When the loudspeaker unit is arranged on the second shell 212, the telescopic movement of the nozzle 23 and the telescopic mechanism 22 is performed on the first shell 211, and does not affect the loudspeaker unit arranged in the second shell 212. In addition, in the wearing process, the first shell 211 is closer to the ear canal of the user relative to the second shell 212, so that the volume of the first shell 211 can be reduced, thereby improving the wearing experience of the user.

[0056] Further, the vibration direction of the loudspeaker unit and the telescopic direction of the telescopic mechanism 22 have an included angle, that is, the central axis of the first shell 211 and the central axis of the second shell 212 have an included angle, so that the interference between the vibration of the loudspeaker unit and the telescopic movement of the telescopic mechanism 22 can be avoided, the load bearing of the ear shell 21 is reduced, and the structural stability of the loudspeaker unit and the telescopic mechanism 22 is ensured.

[0057] The materials of the first shell 211 and the second shell 212 can be plastic, silica gel or the like, and the shapes of the first shell 211 and the second shell 212 can be the same or different, and the volumes of the first shell 211 and the second shell 212 can also be the same or different. For example, the first shell 211 can be approximately a cylindrical structure or a spherical structure, and the second shell 212 can be approximately a cylindrical structure or a rectangular structure, and the present application does not limit this.

[0058] In some embodiments, the open earphone 1 further includes an ear cap (not shown in the figure), which is sleeved on the nozzle 23 and is made of flexible material. After the open earphone 1 is worn, the ear cap can be in direct contact with the ear canal of the user, so as to realize flexible contact with the ear canal of the user. When the distance between the nozzle 23 and the ear is adjusted, the discomfort caused by the direct contact of the nozzle 23 with the ear of the user due to improper adjustment can be avoided, so as to improve the use comfort.

[0059] The material of the ear cap can be silicone rubber material. The silicone rubber material is soft, which improves the comfort of the ear cap when worn and improves the user experience. The material of the ear cap can also be polyurethane foam material. The polyurethane foam material is soft and has a certain sealing property, which can improve the comfort of the ear cap after wearing and improve the noise reduction performance of the ear cap. Of course, the material of the ear cap can also be other flexible sealing materials that can directly contact the skin. The present application does not limit this.

[0060] In some embodiments, in order to further realize that the open earphone 1 has a relatively comfortable clamping force on the ear, the open earphone 1 further comprises a memory wire (not labeled in the figure). The memory wire can be installed on the fixed part 10, and specifically can be installed on the connecting bridge 12 and the ear hook 13. In this way, the structure stability is ensured while the wearing experience of the user is improved.

[0061] It should be noted that the memory wire is made of an alloy with memory performance, which is usually composed of nickel, titanium, platinum, copper, silver and the like. The memory wire has high elasticity, wear resistance and stability, and can maintain its original shape and performance under different temperature and humidity environments. In this way, during wearing, the appropriate pressure between the warehouse body 11 and the sound generating part 20 and the ear can be ensured, so that the open earphone 1 is more stably fixed around the ear and is not easy to loosen and swing. Moreover, the memory wire has high elasticity and durability, which can better adapt to the size of different users' ears to meet the use requirements of different users, and can withstand long-term stretching and compression without being easily deformed or fatigued, thereby prolonging the service life of the open earphone 1.

[0062] In some embodiments, the open earphone 1 further comprises a flexible circuit board (not labeled in the figure), which is electrically connected with the battery, the control circuit board and the speaker unit. The flexible circuit board is arranged in the connecting bridge 12 and the ear hook 13 and is bent, which is beneficial to the compactness and appearance of the overall structure. Of course, in other embodiments, a wiring slot can also be arranged on the outer wall surface of the connecting bridge 12 and the ear hook 13, and the flexible circuit board is connected with the battery, the control circuit board and the speaker unit through the wiring slot. The present application is not limited in this way.

[0063] Further, the memory wire is arranged in parallel with the flexible circuit board. It should be noted that the parallel arrangement means that the memory wire and the flexible circuit board extend in the same direction and have a space between each other. In this way, the memory wire and the flexible circuit board can maintain a distance therebetween, avoiding cross winding therebetween, and the spatial layout of the open earphone 1 can be more reasonable. In addition, the memory wire can support the connecting bridge 12 and the ear hook 13 while making the connecting bridge 12 and the ear hook 13 have elasticity. When the open earphone 1 is subjected to external force stamping, the memory wire can protect the flexible circuit board to a certain extent, avoiding the risk of pulling and bending of the flexible circuit board.

[0064] The same or similar reference numerals in the drawings of the embodiments correspond to the same or similar components; in the description of the present application, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the terms describing the positional relationship in the drawings are only used for exemplary illustration, and cannot be understood as a limitation of the present application, for those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0065] The above is only a preferred embodiment of the present application, and is not intended to limit the present application, any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An open-ear headphone, characterized in that: include: Fixed part; as well as The sound-emitting portion includes an ear shell, a speaker unit, a telescopic mechanism, and a nozzle. The ear shell is connected to the fixing portion, the speaker unit is disposed within the ear shell, and the nozzle portion is located outside the ear shell. The nozzle is telescopic relative to the ear shell to adjust the distance between the nozzle and the user's ear canal opening. The sound emitted by the speaker unit is transmitted outward through the nozzle. The telescopic mechanism is provided in the ear shell, and the telescopic mechanism connects the nozzle and the ear shell, and is used to drive the nozzle to telescope when the nozzle is pressed by an external force.

2. The open-ear headphone according to claim 1, wherein Press the nozzle, the nozzle extends relative to the auricle, and the telescopic mechanism switches from a retracted state to an extended state; press the nozzle again, the nozzle contracts relative to the auricle, and the telescopic mechanism switches from an extended state to a retracted state.

3. The open-ear headphone according to claim 2, wherein: The telescopic mechanism comprises: A fixed sleeve, fixedly connected to the ear shell, wherein the inner wall surface of the fixed sleeve is provided with a plurality of ratchet teeth arranged at intervals and a guide groove located between two adjacent ratchet teeth; a first tube body, sleeved in the fixed sleeve, the nozzle being connected to the first tube body, and a driving tooth being formed at an end of the first tube body away from the nozzle; a second tube body, sleeved in the first tube body, wherein one end of the second tube body away from the nozzle extends out of the first tube body and an outer wall surface of the second tube body is provided with a flange, the flange being slidable along the guide groove, and the flange being engaged with the ratchet teeth and slidingly cooperated with the driving teeth; Wherein, when the telescopic mechanism is in an extended state, the flange is located in the guide groove, and when the telescopic mechanism is in a retracted state, the flange is locked on the ratchet.

4. The open-ear headphone according to claim 3, wherein: The telescopic mechanism further includes an elastic member, one end of which abuts against the ear shell, and the other end of which abuts against the second tube body.

5. The open-ear headphone according to claim 4, wherein: It also includes a cover body, the cover body is connected to the end of the fixing sleeve away from the nozzle, and the elastic member is elastically supported between the cover body and the first tube body; Wherein, the cover body is provided with a sound hole communicating with the fixing sleeve.

6. The open-ear headphone according to claim 5, wherein: One of the cover body and the fixing sleeve is provided with a buckle, and the other one is provided with a buckle groove, and the buckle and the buckle groove are snap-fitted.

7. The open-ear headphone according to claim 3, wherein: It also includes a damping member, which is arranged between the fixing sleeve and the first tube body.

8. The open-ear headphone according to claim 3, wherein: One of the fixed sleeve and the first tube body is provided with a limiting rib, and the other one is provided with a limiting groove. Both the limiting rib and the limiting groove extend along the telescopic direction of the telescopic mechanism, and the limiting rib is slidably embedded in the limiting groove.

9. The open earphone according to any one of claims 1 to 8, wherein: The vibration direction of the speaker unit and the extension direction of the extension mechanism form an angle.

10. The open earphone according to any one of claims 1 to 8, wherein: It also includes an ear cap, which is sleeved on the nozzle.

11. The open earphone according to any one of claims 1 to 8, wherein: The fixing part includes a warehouse body and a connecting bridge, and the connecting bridge connects the warehouse body and the sound-emitting part. In the wearing state, the warehouse body is located on the back of the user's auricle and cooperates with the sound-emitting part to clamp the user's ear.

12. The open earphone according to any one of claims 1 to 8, characterized in that The fixing part includes a chamber body and an ear hook, the ear hook connects the chamber body and the sound-emitting part. In the wearing state, the chamber body is located on the back of the user's auricle, and the ear hook is hung on the back of the user's ear.

13. The open earphone according to any one of claims 3 to 8, characterized in that The first tube body and the nozzle are an integrated structure.

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