Open type earphone

Abstract

The utility model belongs to the technical field of acoustic equipment, and relates to an open type earphone, the open type earphone comprises a sound production part and a wearing part, the sound production part comprises a shell and a sound outlet nozzle, the shell is connected with the wearing part, the sound outlet nozzle is provided with a sound outlet hole, the sound outlet nozzle is movably connected with the shell, and the wearing part is connected with the shell. The sound outlet nozzle can telescopically move relative to the shell, so that the distance between the sound outlet hole and an ear canal opening of a user can be adjusted when the open type earphone is worn; and in the contraction state, the sound outlet hole is separated from the ear canal opening of the user. According to the technical scheme of the invention, the sound outlet nozzle is configured to be telescopically movable relative to the shell, so that the distance between the sound outlet hole in the sound outlet nozzle and the ear canal opening of the user can be adjusted, and the listening use effect of the open type earphone can be improved.

Description

Technical Field

[0001] This application relates to the technical field of acoustic devices, and particularly to an open earphone. Background Art

[0002] Currently, there are a wide variety of earphones. For some open earphones that can be directly attached to the user's ears for wearing, this type of earphone is usually relatively small in size and convenient to use, and can be applied to various scenarios such as commuting to work, meeting and working, and sports. Therefore, it is deeply loved by the majority of consumers.

[0003] However, currently, for open earphones that are attached to the user's ears for wearing, the sound outlet on the open earphone is usually not adjustable after wearing. However, in reality, the ear sizes of different users are different. As a result, after different users wear the open earphone, the distance between the sound outlet of the open earphone and the user's ear canal opening is different. For users with larger ear sizes, since the distance between the sound outlet and the user's ear canal opening is too far, this is likely to cause relatively serious sound leakage, resulting in poor listening effects and unsatisfactory usage effects. Summary of the Utility Model

[0004] An embodiment of this application provides an open earphone, which can improve the listening and usage effects of the open earphone.

[0005] In a first aspect, an embodiment of this application provides an open earphone, which includes a sound generating part and a wearing part. The sound generating part includes a housing and a sound outlet nozzle. The housing is connected to the wearing part, and the sound outlet nozzle is movably connected to the housing. The sound outlet nozzle is provided with a sound outlet hole, and the sound outlet nozzle can move telescopically relative to the housing so that when the open earphone is worn, the distance between the sound outlet hole and the user's ear canal opening can be adjusted. In a contracted state, the sound outlet hole and the user's ear canal opening are spaced apart.

[0006] Based on the open earphone of the embodiment of this application, the sound outlet nozzle is movably connected to the housing, so that the sound outlet nozzle can move telescopically relative to the housing, and the distance between the sound outlet hole and the user's ear canal opening can be adjusted when the open earphone is worn. Therefore, in the actual use process, when the distance between the sound outlet hole on the sound outlet nozzle and the user's ear canal opening is too large, resulting in serious sound leakage and the user feeling that the volume of the open earphone is too small, the sound outlet nozzle can be extended to shorten the distance from the sound outlet hole to the ear canal opening, so as to reduce sound leakage and increase the volume. When the user feels that the area of the sound outlet nozzle in the ear canal opening is unreasonable and causes discomfort, the sound outlet nozzle is retracted to increase the distance from the sound outlet nozzle to the ear canal opening. With such a setting, the earphone of this application can be suitable for users with different ear sizes and can achieve better listening and usage effects. Description of the Drawings

[0007] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.

[0008] Figure 1 Structural schematic diagram of an open earphone according to an embodiment of the present application;

[0009] Figure 2 is Figure 1 Cross-sectional view of the open earphone in

[0010] Figure 3 is Figure 1 Exploded structural schematic diagram of the open earphone in

[0011] Figure 4 Structural schematic diagram of an open earphone according to another embodiment of the present application;

[0012] Figure 5 is Figure 4 Cross-sectional view of the open earphone in

[0013] Figure 6 Structural schematic diagram of an open earphone according to still another embodiment of the present application;

[0014] Figure 7 is Figure 6 Exploded structural schematic diagram of the open earphone in

[0015] Figure 8 is Figure 6 Exploded structural schematic diagram of the open earphone from another perspective in

[0016] Figure 9 is Figure 6 Structural schematic diagram of the open earphone in where the sound outlet nozzle is in a retracted state;

[0017] Figure 10 is Figure 9 Cross-sectional view of the open earphone in

[0018] Figure 11 is Figure 6 Structural schematic diagram of the adjustment cylinder in the open earphone in

[0019] Figure 12 is Figure 6 Partial structural schematic diagram of the housing in the open earphone in

[0020] Figure 13 is Figure 6Schematic structural diagram of the adjustment cylinder in the open earphone from another perspective;

[0021] Figure 14 Schematic structural diagram of the open earphone according to another embodiment of the present application;

[0022] Figure 15 For Figure 14 Schematic structural diagram of the open earphone in which the sound outlet nozzle is in the retracted state;

[0023] Figure 16 For Figure 14 Exploded structural diagram of the open earphone;

[0024] Figure 17 For Figure 14 Stereoscopic structural diagram of the adjustment member in the open earphone;

[0025] Figure 18 For Figure 14 Exploded structural diagram of the open earphone from another perspective;

[0026] Figure 19 For Figure 14 Assembly schematic diagram of the adjustment mechanism on the housing in the open earphone, in which part of the housing structure is shown;

[0027] Figure 20 For Figure 19 Schematic structural diagram after removing the housing from the structure;

[0028] Figure 21 For Figure 14 Another exploded structural diagram of the open earphone;

[0029] Figure 22 For Figure 14 Another exploded structural diagram of the open earphone;

[0030] Figure 23 For Figure 14 Assembly schematic diagram of the wearing part and the damping component in the open earphone;

[0031] Figure 24 For Figure 23 Exploded diagram of the damping component and the bushing;

[0032] Figure 25 For Figure 24 Cross-sectional view of the damping component and the bushing in the assembled state.

[0033] Explanation of the reference numerals in the drawings:

[0034] 1. Open earphone; 10. Sound generating part; 11. Housing; 111. Shaft hole; 112. Slot; 113. Notch groove; 114. Outer housing; 115. Inner cylinder; 116. Open groove; 117. Sound outlet hole; 118. Sleeve; 119. Mounting shaft; 12. Sound outlet nozzle; 121. Sound outlet hole; 13. Guide structure; 131. Guide groove; 132. Guide block; 14. Damping structure; 15. Adjusting mechanism; 151. Adjusting part; 152. Adjusting knob; 153. Driving shaft; 154. Adjusting cylinder; 1541. Sleeve part; 1542. Mounting part; 1543. Connecting body; 1544. Inner folded edge; 1545. Avoidance groove; 1546. Slide groove; 155. Transmission structure; 1551. Gear structure; 1552. First bevel gear; 1553. Second bevel gear; 1554. Rack; 1555. Thread; 1556. Spiral groove; 1557. First tooth part; 1558. Second tooth part; 16. Limiting structure; 161. First limiting part; 162. Second limiting part; 17. Limiting part; 171. Base body; 172. Pin; 173. Limiting hole; 18. Detection component; 181. Detection part; 182. Trigger part; 19. Ear cap; 191. Sound generating hole; 101. Speaker assembly; 102. Front cavity; 103. Rear cavity; 20. Wearing part; 30. Connecting bridge; 40. Ear hook; 41. Ear hook body; 411. Outer covering; 412. Memory metal part; 42. Rotating shaft; 421. Ball head; 43. Damping component; 431. Damping spring piece; 432. Damping adjusting nut; 50. Battery compartment; 51. Battery; 60. Acoustic damping net; 70. Protective net.

[0035] The realization of the purpose of this application, functional features and advantages will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0036] To make the purpose, technical solutions and advantages of this application clearer, the following will further describe the embodiments of this application in detail with reference to the accompanying drawings.

[0037] 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 implementation manners described in the following exemplary embodiments do not represent all implementation manners consistent with this application. On the contrary, they are merely examples of devices and methods that are consistent with some aspects of this application as detailed in the appended claims.

[0038] In the description of the present 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 the present application can be understood according to specific circumstances. In addition, in the description of the present application, unless otherwise specified, "a plurality" means two or more. "And / or" describes the association relationship of associated objects, indicating 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.

[0039] 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.

[0040] An earphone is a pair of transducer units that receive electrical signals from a media player or receiver and convert them into audible sound waves using speakers close to the ears.

[0041] From the perspective of the development of the entire audio industry, wireless earphones are still relatively new. A wireless earphone is a type of earphone that uses wireless communication technologies such as Bluetooth to achieve wire-free connection, and users can transmit audio wirelessly with a mobile phone or other devices. The main advantages of wireless earphones include no wire bondage, convenience in carrying and use.

[0042] There are a wide variety of wireless earphones. For some open earphones that can be directly attached to the user's ears for wearing, this type of open earphone is usually relatively small in size and convenient to use, and can be applied to various scenarios such as commuting to work, meeting and working, and sports, so it is deeply loved by consumers.

[0043] However, currently, for open earphones that are attached to the user's ears for wearing, the sound outlets on the open earphones are usually not adjustable after wearing. But in reality, the ear sizes of different users are different, which will result in different distances between the sound outlets of the open earphones and the user's ear canals after different users wear the open earphones. For users with larger ear sizes, since the distance between the sound outlet and the user's ear canal is too far, it is easy to cause the volume of the sound emitted from the sound outlet transmitted into the user's ear canal to be too small, resulting in poor listening effects and unsatisfactory usage effects.

[0044] Therefore, the present application proposes an open earphone 1 that can achieve good listening and usage effects for different users.

[0045] Please refer to Figures 1 to 4 In the embodiment of the present application, the open earphone 1 includes a sound generating part 10 and a wearing part 20 connected to the sound generating part 10. The sound generating part 10 is used to generate sound signals, and the wearing part 20 can cooperate with the sound generating part 10 to wear the open earphone 1 on the user's ear.

[0046] The sound generating part 10 includes a housing 11 and a sound outlet nozzle 12. The housing 11 is connected to the wearing part 20. The sound outlet nozzle 12 is provided with a sound outlet hole 121. The sound outlet nozzle 12 is movably connected to the housing 11, and the sound outlet nozzle 12 is telescopically movable relative to the housing 11, so that the distance between the sound outlet hole 121 and the user's ear canal opening can be adjusted when the open earphone 1 is worn. It should be noted that the sound outlet nozzle 12 is telescopically movable relative to the housing 11 and has an extended state and a contracted state. When the sound outlet nozzle 12 is in the contracted state, the sound outlet hole 121 is spaced from the user's ear canal opening; when the sound outlet nozzle 12 is in the extended state, the sound outlet hole 121 may or may not be spaced from the user's ear canal opening, which will be introduced in detail below.

[0047] It can be understood that the sound generating part 10 further includes a speaker assembly 101 disposed in the housing 11. The speaker assembly 101 is the core component for generating sound, which converts electrical signals into sound signals. The speaker assembly 101 can be, for example, a dynamic coil speaker, an electrostatic speaker, etc. The sound generated by the speaker assembly 101 propagates to the outside through the sound outlet hole 121. Moreover, the open earphone 1 of the present application is an air conduction earphone, that is, the sound generated by the speaker assembly 101 is transmitted through the air and enters the user's ear canal. In addition, the open earphone 1 of the present application is also provided with a battery 51 (see Figure 21 ) and an electronic control board (not labeled). Among them, the battery 51 and the electronic control board can be arranged in the sound generating part 10 together with the speaker assembly 101. Of course, other arrangements are also possible. For example, the control circuit board and the speaker assembly 101 are both located in the sound generating part 10, while the battery 51 is located in the wearing part 20, or the battery 51 and the electronic control board are located in the wearing part 20, while the speaker assembly 101 is located in the sound generating part 10. It can also be that the speaker assembly 101 and the main control board are located in the sound generating part 10, and the battery 51 is located in the wearing part 20. These arrangements are all feasible. Among them, the battery 51 can be in the form of a rechargeable lithium battery 51 or a disposable dry battery 51. The present application does not limit this.

[0048] Based on the open earphone 1 of the embodiments of the present application, the sound outlet nozzle 12 is movably connected to the housing 11, so that the sound outlet nozzle 12 can telescopically move relative to the housing 11, thereby adjusting the distance between the sound outlet hole 121 and the user's ear canal opening. Therefore, during actual use, when the distance between the sound outlet hole 121 on the sound outlet nozzle 12 and the user's ear canal opening is too large, resulting in serious sound leakage and the user feeling that the volume of the open earphone 1 is too small, the sound outlet nozzle 12 can be extended to shorten the distance between the sound outlet hole 121 and the ear canal opening, so as to reduce sound leakage and increase the volume. When the user feels discomfort due to the unreasonable position of the sound outlet nozzle 12 in the ear canal area, the sound outlet nozzle 12 is retracted to increase the distance between the sound outlet nozzle 12 and the ear canal opening. With such a setting, the open earphone 1 of the present application can be suitable for users with ears of different sizes and can achieve a better listening and usage effect.

[0049] Please refer to Figures 5 to 10 , the housing 11 can protect the speaker assembly 101, that is, the speaker assembly 101 can be fixedly arranged inside the housing 11, that is, the speaker assembly 101 is arranged in the housing 11 and divides the housing 11 into a front cavity 102 and a rear cavity 103 (refer to Figure 10 ), and the sound outlet hole 121 communicates with the front cavity 102. During the telescopic movement of the sound outlet nozzle 12, the position of the speaker assembly 101 in the housing 11 will not change. On this basis, the housing 11 can be a trough structure with an open mouth, and the sound outlet nozzle 12 covers the open mouth of the housing 11, and the sound emitted by the speaker assembly 101 is transmitted outward through the open mouth and the sound outlet hole 121 on the sound outlet nozzle 12. Among them, the sound outlet holes 121 on the sound outlet nozzle 12 are in the form of a plurality of micro-holes arranged in an array. Of course, the housing 11 can also be a relatively closed cavity structure without an open mouth (such as Figure 7 ), and the housing 11 is provided with a sound outlet hole 117 corresponding to the sound outlet hole 121, and the sound outlet hole 117 is also in the form of a plurality of micro-holes arranged in an array, and the sound emitted by the speaker assembly 101 is transmitted outward through the sound outlet hole 117 and the sound outlet hole 121 on the sound outlet nozzle 12.

[0050] In the above two structural forms, the sound outlet nozzle 12 is in the form of a cover body with an opening on one side, and the sound outlet nozzle 12 and the housing 11 are slidably sleeved. When the housing 11 is a trough structure with an open mouth, the sound outlet nozzle 12 can be nested inside the housing 11. Of course, the sound outlet nozzle 12 can also be sleeved outside the housing 11. When the housing 11 is a relatively closed cavity structure, the sound outlet nozzle 12 can be sleeved outside the housing 11. In the case where the housing 11 and the sound outlet nozzle 12 are in a sliding sleeve fit form as exemplified above, the speaker assembly 101 can also be arranged on the sound outlet nozzle 12 (as shown in Figure 2 ), in this setting, during the telescopic movement of the sound outlet nozzle 12, the speaker assembly 101 moves relative to the housing 11.

[0051] In other embodiments, in order to enable the sound outlet nozzle 12 to telescopically move relative to the housing 11, it can also be achieved by a telescopic member between the two. For example, the sound outlet nozzle 12 can be connected to the housing 11 through a corrugated pipe structure. In this way, the corrugated pipe structure is telescoped to achieve the telescopic movement of the sound outlet nozzle 12 relative to the housing 11.

[0052] When the present application drives the sound outlet nozzle 12 to telescopically move relative to the housing 11, it can be driven manually. Of course, when driving the sound outlet nozzle 12 to telescopically move relative to the housing 11, it can also be driven by a driving mechanism.

[0053] In order to avoid the situation that the sound outlet nozzle 12 twists relative to the housing 11 during the process of driving the sound outlet nozzle 12 to telescopically move, the present application can further be provided with a guiding structure 13 between the sound outlet nozzle 12 and the housing 11. The guiding structure 13 is used to prevent the sound outlet nozzle 12 from generating circumferential torsion with the housing 11 during the telescopic process. Specifically, as Figure 2 and Figure 8 shown, the guiding structure 13 can include a guiding groove 131 and a guiding block 132. The guiding groove 131 can be provided on the sound outlet nozzle 12 or on the housing 11 and extends in the telescopic direction of the sound outlet nozzle 12. The guiding block 132 slides along the guiding groove 131. That is, the installation positions of the guiding groove 131 and the guiding block 132 in the present application can be interchanged between the sound outlet nozzle 12 and the housing 11. Through the arrangement of the guiding structure 13, the relative torsion between the sound outlet nozzle 12 and the housing 11 is avoided. Then, in the case where the cross-sectional shapes of the sound outlet nozzle 12 and the housing 11 are non-circular designs, interference between the sound outlet nozzle 12 and the housing 11 can be effectively avoided, and deformation of the structure of the sound outlet nozzle 12 can be avoided.

[0054] Of course, in other structural forms, it can also be that the guiding structure 13 is not provided, but is achieved through the shape settings between the housing 11 and the sound outlet nozzle 12. For example, the cross-sectional contour shapes of the housing 11 and the sound outlet nozzle 12 can both be set to a runway shape, a polygon, etc. In this way, there are mutually sliding planes between the housing 11 and the sound outlet nozzle 12, so that the sound outlet nozzle 12 can be prevented from twisting relative to the housing 11 during the pulling process.

[0055] During actual use, after the user adjusts the sound outlet nozzle 12 in terms of its telescopic movement, it is desired that the sound outlet nozzle 12 can remain in the adjusted position to adapt to various sports scenarios. For this purpose, it can be achieved through the frictional force between the sound outlet nozzle 12 and the housing 11. In one implementation, the sound outlet nozzle 12 and the housing 11 can be in an interference fit, and there is a certain deformation extrusion on the contacting wall surfaces of the two. For example, the wall surface of the sound outlet nozzle 12 in contact with the housing 11 is made of soft rubber material. In yet another implementation, a damping structure 14 can also be provided between the sound outlet nozzle 12 and the housing 11, that is, the damping structure 14 generates elastic deformation by itself and generates resistance to prevent the sound outlet nozzle 12 from loosening relative to the housing 11.

[0056] Specifically, the damping structure 14 can be in the form of a damping ring, a damping sheet, etc. made of silica gel material. Taking the case where the sound outlet nozzle 12 is nested inside the housing 11 as an example, the damping ring is clamped between the outer wall surfaces of the housing 11 and the sound outlet nozzle 12. Among them, a fixing groove can be provided on the sound outlet nozzle 12 or the housing 11, and the damping ring is embedded and fixed in the fixing groove.

[0057] Please refer to Figure 6 and Figure 7 , in order to facilitate the user to adjust the sound outlet nozzle 12 so that the sound outlet nozzle 12 can perform telescopic movement relative to the housing 11, the open earphone 1 can further be provided with an adjusting mechanism 15, and the adjusting mechanism 15 is used to drive the sound outlet nozzle 12 to perform telescopic movement relative to the housing 11. It can be understood that by providing the adjusting mechanism 15, in this way, the user can, when the open earphone 1 is in a worn state, drive the sound outlet nozzle 12 to perform telescopic movement by operating the adjusting mechanism 15. In this way, the user can directly determine the adjustment amount of the sound outlet nozzle 12 through the change in volume during the adjustment process, so it is more convenient to use. Of course, the user can also, when the open earphone 1 is in an unworn state, drive the sound outlet nozzle 12 to perform telescopic movement to a suitable position through operating the adjusting mechanism 15 and then wear it.

[0058] In one embodiment, the adjusting mechanism 15 can only include an adjusting member 151, and the adjusting member 151 is specifically in the form of a dial block (not shown). Among them, the dial block is exposed outside the housing 11 and is fixedly connected to the sound outlet nozzle 12. The user can directly push the dial block, and then drive the sound outlet nozzle 12 to perform telescopic sliding relative to the housing 11. Or, the separate adjusting member 151 can also be in the form of a screw rod. The sound outlet nozzle 12 is pushed to perform telescopic movement by the screw rod. Among them, the screw rod is threadedly connected to the housing 11 and is rotatably connected to the sound outlet nozzle 12, so it is convenient for the screw rod to push the sound outlet nozzle 12 to perform telescopic movement.

[0059] In other embodiments, the adjusting mechanism 15 may include an adjusting member 151 and a transmission structure 155. The transmission structure 155 is drivingly connected to the adjusting member 151 and the sound outlet nozzle 12. The adjusting member 151 is movably connected to the housing 11. The adjusting member 151 is configured to drive the sound outlet nozzle 12 to perform telescopic movement relative to the housing 11 through the transmission structure 155. In this way, the movement mode and movement direction of the adjusting member 151 during the adjustment process are changed through the transmission structure 155, and finally a driving force for driving the sound outlet nozzle 12 to perform telescopic movement relative to the housing 11 is formed. The advantage of such a setting is that the shape of the adjusting member 151 and its position on the housing 11 can be configured in a form that is more conducive to user operation. Among them, there are various types of transmission structures 155, such as screw drive structures, gear drive structures, sprocket drive structures, belt drive structures, lead screw drive structures, etc. The present application does not limit this.

[0060] Please refer to Figures 6 to 10 , the transmission structure 155 is a screw drive structure. The transmission structure 155 includes a first helical structure and a second helical structure. The first helical structure is provided on one of the adjusting member 151 and the sound outlet nozzle 12, and the second helical structure is provided on the other of the adjusting member 151 and the sound outlet nozzle 12. The first helical structure is helically engaged with the second helical structure.

[0061] In this embodiment, the sound outlet nozzle 12 is sleeved inside the housing 11. The adjusting member 151 includes an adjusting cylinder 154. The adjusting cylinder 154 is rotatably sleeved outside the housing 11. Among them, the adjusting cylinder 154 and the sound outlet nozzle 12 are helically engaged to drive the sound outlet nozzle 12 to perform telescopic movement relative to the housing 11. It can be understood that in the case of helical engagement between the adjusting cylinder 154 and the sound outlet nozzle 12, stepless adjustment during the telescopic movement of the sound outlet nozzle 12 can be achieved, which is relatively convenient to use. Among them, the first helical structure and the second helical structure are respectively a helical groove 1556 and a thread 1555. In this way, screw drive can be achieved through the cooperation of the helical groove 1556 and the thread 1555. Specifically, the helical groove 1556 is provided on one of the adjusting cylinder 154 and the sound outlet nozzle 12, and the thread 1555 is provided on the other of the adjusting cylinder 154 and the sound outlet nozzle 12. The helical groove 1556 is screwed and engaged with the thread 1555. In this embodiment, the adjusting mechanism 15 drives the sound outlet nozzle 12 to perform telescopic movement by screw drive during the rotation of the adjusting cylinder 154. The number of components used in the entire transmission structure 155 is small, and the structure is relatively compact.

[0062] Exemplarily, the adjustment cylinder 154 is provided with a thread 1555, and the sound outlet nozzle 12 is provided with a spiral groove 1556. During use, since the adjustment cylinder 154 is sleeved outside the housing 11 and is in an exposed form, when the user rotates the adjustment cylinder 154, it will drive the thread 1555 to rotate, thereby driving the sound outlet nozzle 12 to move telescopically. Such an operation is simple. Moreover, in the form where the adjustment cylinder 154 of the present application is sleeved outside the housing 11, when the sound outlet nozzle 12 is in the retracted state, the adjustment cylinder 154 can also protect and hide the sound outlet nozzle 12.

[0063] Further, please refer to Figure 7 and Figure 8 as well as Figure 10 , the adjustment cylinder 154 includes a sleeve portion 1541 and a mounting portion 1542. The sleeve portion 1541 is sleeved outside the housing 11, and the mounting portion 1542 is connected to one end of the sleeve portion 1541 away from the wearing portion 20 and extends inward from the sleeve portion 1541. Among them, the mounting portion 1542 is provided with a thread 1555. During use, the user rotates the sleeve portion 1541 to drive the mounting portion 1542 to rotate, so that the thread 1555 can be in spiral fit with the spiral groove 1556 to make the sound outlet nozzle 12 move telescopically. With such a setting, the position of the thread 1555 can be adjusted by designing the mounting portion 1542 to overcome the wall thickness of the housing 11 and be in spiral connection with the sound outlet nozzle 12 located inside the housing 11.

[0064] Of course, the first spiral structure and the second spiral structure can also be an internal thread and an external thread respectively. In this way, spiral transmission can be achieved through the cooperation of the internal thread and the external thread. Specifically, the internal thread is provided on the adjustment cylinder 154, and the external thread is provided on the housing 11. Through the cooperation of the internal thread and the external thread, it has the characteristic of more precise adjustment.

[0065] In an embodiment, a limiting member 17 is provided on the housing 11. The limiting member 17 is used to limit the adjustment cylinder 154 to prevent the adjustment cylinder 154 from detaching from the housing 11 in the direction away from the wearing portion 20. In this way, it can ensure that the adjustment cylinder 154 rotates within a specific range, avoiding the situation that the adjustment cylinder 154 becomes loose during use and is difficult to adjust. In some connection methods, the limiting member 17 can be connected to the side of the housing 11 away from the wearing portion 20 and be in limiting abutment with the mounting portion 1542.

[0066] For the convenience of installing the limiting member 17 and the housing 11, please refer to Figure 10 and Figure 11, the limiting member 17 includes a base body 171 and a pin 172, and the pin 172 protrudes from the base body 171. A slot 112 is provided on the end face of the housing 11 away from the wearing part 20, and the pin 172 is inserted into the slot 112, and the base body 171 limits the mounting part 1542. When the limiting member 17 is installed on the housing 11, the pin 172 can be easily inserted into the slot 112 on the housing 11, realizing fast and stable installation, and improving production efficiency. After installation, the base body 171 limits the mounting part 1542, ensuring that the mounting part 1542 remains stable during operation and will not have accidental displacement or loosening.

[0067] A relief groove 1545 extending along the circumferential direction of the mounting part 1542 is provided on the mounting part 1542, and the pin 172 passes through the relief groove 1545. During the process of the adjusting cylinder 154 rotating relative to the housing 11, the pin 172 slides relative to the relief groove 1545. In this way, the pin 172 will not interfere with the rotation of the adjusting cylinder 154.

[0068] Furthermore, the base body 171 is annularly arranged and surrounds the sound outlet nozzle 12 on the outside. In this way, the base body 171 can evenly distribute stress and improve the overall strength and stability of the structure. Among them, a limiting hole 173 is formed in the base body 171, and the sound outlet nozzle 12 passes through the limiting hole 173. After the limiting member 17 is installed, on the one hand, the base body 171 can also play a role in limiting and guiding the movement of the sound outlet nozzle 12, making the telescopic movement of the sound outlet nozzle 12 more stable. And, the annular base body 171 is in an exposed form as a whole. In the actual product design, the base body 171 can also be given a bright color or a smooth side with a sense of technology, so as to improve the aesthetics of the entire open earphone 1.

[0069] In some other embodiments, the limiting member 17 can also be formed with a convex portion provided on the inner wall surface of the adjusting cylinder 154 and a groove provided on the outer wall surface of the housing 11. Among them, the groove is provided around the housing 11 for one week. Then, after the adjusting cylinder 154 is sleeved on the outer wall surface of the housing 11, the convex portion is embedded in the groove, so that the adjusting cylinder 154 can also be prevented from detaching from the housing 11 during the rotation process.

[0070] In some structural forms, please refer to Figure 11 and Figure 13 , the mounting part 1542 includes a connecting body 1543 and an inner folded edge 1544 connected to each other. One end of the connecting body 1543 away from the inner folded edge 1544 is connected to the sleeve part 1541. The inner folded edge 1544 is provided with a thread 1555 and is spaced from the sleeve part 1541. The relief groove 1545 is provided on the connecting body 1543 in the above content.

[0071] Further, the sleeve portion 1541, the connector 1543 and the inner fold 1544 are enclosed together to form a slide groove 1546, and at least a portion of the housing 11 is embedded in the slide groove 1546 and can slide relatively along the slide groove 1546, that is, after assembly, the connector 1543 is in the form of spanning the end face of the housing 11 away from the wearing portion 20, so that the screw thread 1555 on the inner fold 1544 can extend into the inner side of the housing 11 and spirally cooperate with the spiral groove 1556. In this way, after at least a portion of the housing 11 is embedded in the slide groove 1546, the adjustment cylinder 154 can be prevented from disengaging in the direction of the housing 11 close to the wearing portion 20, and the stopper 17 can prevent the adjustment cylinder 154 from disengaging in the direction of the housing 11 away from the wearing portion 20, so that the stability of the adjustment cylinder 154 can be improved.

[0072] It can be understood that in other embodiments, the adjusting cylinder 154 may not be provided with the mounting portion 1542, and the screw thread 1555 may be provided on the inner wall of the sleeve portion 1541, and then a groove for avoiding the screw thread 1555 is provided on the shell 11. The screw thread 1555 passes through the groove and extends into the inner side of the shell 11 and can be spirally matched with the spiral groove 1556.

[0073] In some embodiments, the open earphone 1 further includes a damping member, which is sandwiched between the adjustment cylinder 154 and the housing 11 and is used to provide a damping force during the rotation of the adjustment cylinder 154 and the housing 11. This arrangement can provide a rotational damping feel, making the operation of the adjustment cylinder 154 smoother. The damping member can be in the form of a damping ring, a damping sheet, etc., and is made of materials including but not limited to silicone, rubber, etc.

[0074] For further information, see Figure 7 , Figure 8 , Figure 12 The outer wall of the housing 11 is also provided with a notch groove 113, and the sleeve portion 1541 is received in the notch groove 113, so that the outer wall of the sleeve portion 1541 is coplanar with the outer wall of the housing 11. In this way, the outer wall of the open earphone 1 will not have excessively protruding structures or components, which can provide a better wearing effect for the user and avoid discomfort such as ear irritation. In addition, the overall appearance can be made more beautiful and neat, and the aesthetic value of the product can be improved.

[0075] In order to improve the stability of the sound outlet 12 during the telescopic movement, please refer to Figure 7 , Figure 8 , Figure 12The housing 11 is provided with an open slot 116 on one side facing the sound outlet 12. The sound outlet 12 is located in the open slot 116 and can perform telescopic sliding motion along the open slot 116. The open slot 116 can provide stable guidance and support for the sound outlet 12, reduce swing and deviation during the motion, and improve the stability and reliability of the system.

[0076] Specifically, the shell 11 includes an outer shell 114 and an inner cylinder 115 . The inner cylinder 115 is arranged on the inner side of the outer shell 114 , and an open groove 116 is formed between the inner cylinder 115 and the outer shell 114 . A sound outlet hole 117 is provided at the end of the inner cylinder 115 , and the sound outlet hole 117 is connected to the sound outlet hole 121 .

[0077] In the above spiral matching structure of the adjusting cylinder 154 and the sound outlet 12, the sound outlet 12 can be sleeved on the outside of the shell 11 in addition to being sleeved on the inside of the shell 11, and the adjusting cylinder 154 can be sleeved on the outside of the shell 11 and the sound outlet 12.

[0078] The embodiment of the present application also includes an acoustic damping mesh 60, which is installed on the inner tube 115 and covers the sound outlet 117. Specifically, after the sound waves emitted by the speaker assembly 101 enter the acoustic damping mesh 60, the sound waves can be scattered when in contact, thereby changing the propagation path of the sound waves and reducing their direct propagation distance and intensity. The acoustic damping mesh 60 can also reflect sound waves of specific frequencies, directing them to insensitive areas or redistributing the sound field, thereby reducing the impact of noise on sensitive areas. In this way, the acoustic damping mesh 60 can adjust the sound quality of the open earphones 1 and improve the user experience.

[0079] The embodiment of the present application further includes a protective net 70, which is installed on the sound outlet 12 and covers the sound outlet 121. The protective net 70 can be made of metal or plastic. The protective net 70 is mainly used to prevent external impurities from entering the interior of the open earphone 1 through the sound outlet 121, protect the internal sound unit and other components, and extend the service life of the device.

[0080] Please refer to Figures 14 to 18 The transmission structure 155 is a gear transmission structure. The transmission structure 155 includes a gear structure 1551 and a rack 1554. The gear structure 1551 is connected to the drive shaft 153. The rack 1554 meshes with the gear structure 1551 and is fixedly connected to the sound outlet 12. In this embodiment, the gear transmission structure has the advantages of reliable structure and relatively stable. The gear structure 1551 can include one gear or multiple gears, without specific limitation.

[0081] In this embodiment, the adjusting member 151 includes an adjusting knob 152 and a driving shaft 153 connected to the adjusting knob 152. The adjusting knob 152 is exposed outside the housing 11. The housing 11 is provided with a shaft hole 111. The driving shaft 153 is rotatably inserted through the shaft hole 111 and is in driving connection with the transmission structure 155. The adjusting knob 152 is used to drive the sound outlet nozzle 12 to move telescopically relative to the housing 11 through the transmission structure 155. Specifically, the user rotates the adjusting knob 152, and the adjusting knob 152 drives the transmission structure 155 to work through the driving shaft 153, thereby generating a driving force for driving the sound outlet nozzle 12 to move telescopically, and then driving the sound outlet nozzle 12 to move telescopically. It can be understood that when the adjusting member 151 is the adjusting knob 152, it has the characteristic of being relatively convenient to operate.

[0082] Further, please refer to Figures 19 to 21 , the gear structure 1551 includes a first bevel gear 1552 and a second bevel gear 1553 that mesh with each other. The driving shaft 153 is in driving connection with the first bevel gear 1552. An installation shaft 119 is provided on the housing 11. The second bevel gear 1553 is rotatably sleeved on the installation shaft 119. The second bevel gear 1553 includes a first tooth portion 1557 and a second tooth portion 1558 arranged coaxially. The first tooth portion 1557 meshes with the first bevel gear 1552, and the second tooth portion 1558 meshes with the rack 1554.

[0083] In this embodiment, the first bevel gear 1552 is fixedly sleeved on the driving shaft 153, and the first tooth portion 1557 of the second bevel gear 1553 is a bevel tooth adapted to mesh with the first bevel gear 1552, and the second tooth portion 1558 is a straight tooth adapted to mesh with the rack 1554. Thus, through the transmission cooperation of the two bevel gears, the adjusting knob 152 can be arranged on the side of the housing 11 facing away from the user's ear in the wearing state of the open earphone 1, and the rotational movement of the adjusting knob 152 can also be converted into the telescopic movement of the sound outlet nozzle 12. That is, the user can directly rotate the adjusting knob 152 in the wearing state of the open earphone 1, and then can conveniently drive the sound outlet nozzle 12 to move telescopically. Such a structural form has the advantages of simple structure and fewer components.

[0084] Further, please refer to Figures 16 to 18 , in this embodiment, a limiting structure 16 is further provided on the sound generating part 10. The limiting structure 16 includes a first limiting part 161 and two second limiting parts 162. The first limiting part 161 is arranged on one of the adjusting knob 152 and the housing 11, and the two second limiting parts 162 are arranged at intervals on the other of the adjusting knob 152 and the housing 11. When the adjusting knob 152 rotates to the maximum adjustment angle position, the first limiting part 161 selectively limits and cooperates with one of the two second limiting parts 162.

[0085] Among them, the two second limiting portions 162 are respectively arranged corresponding to the extreme position where the sound outlet nozzle 12 is in the extended state and the extreme position where the sound outlet nozzle 12 is in the retracted state. Then, through the cooperation of the first limiting portion 161 and the second limiting portion 162, a relatively obvious tactile hint of operation can be given during the user's operation process, thereby avoiding the situation of over-rotation or under-rotation during the process of the user rotating the adjustment knob 152, which can improve the convenience of use.

[0086] Specifically, the first limiting portion 161 is a ball stud provided on the adjustment knob 152, and the second limiting portion 162 is a positioning groove provided on the housing 11. The structure of the ball stud includes a cylindrical shell, a spring, and a ball. The spring is received in the cylindrical shell and supported between the ball and the cylindrical shell. When the adjustment knob 152 rotates to the maximum angle position, the ball stud is driven by the spring and snaps into the positioning groove. At this time, the user can obtain hints in terms of sound and touch. When the limiting structure 16 is the ball stud and the positioning groove, it is also beneficial for the adjustment knob 152 to stably stay at the adjusted position.

[0087] It can be understood that, in addition to the above-listed structural forms, the limiting structure 16 can also be other structural forms. For example, the first limiting portion 161 can be composed of a leaf spring structure, while the second limiting portion 162 still adopts the form of a positioning groove. Or, the first limiting portion 161 and the second limiting portion 162 are a stopper structure that mutually abuts and cooperates, etc. The present application does not limit this.

[0088] The above content illustrates several embodiments in which the adjustment mechanism 15 adopts a manual driving form to adjust the telescopic movement of the sound outlet nozzle 12.

[0089] However, during the process of driving the telescopic adjustment of the sound outlet nozzle 12, the adjustment mechanism 15 of the present application can also adopt a self-driving form. For example, the adjustment mechanism 15 includes a driving device, and the driving device is used to drive the transmission structure 155 to work, thereby driving the sound outlet nozzle 12 to perform telescopic movement, and the transmission structure 155 can adopt the structural forms exemplified in the present application. Of course, in this embodiment, the transmission structure 155 may not be provided, and the driving device directly drives the sound outlet nozzle 12 to perform telescopic movement.

[0090] Among them, the driving device can be in the form of a motor, a motor, an air pump, etc. For the convenience of user operation, the adjusting member 151 is set as an adjusting button. In this embodiment, the adjusting button can be a physical button provided on the housing 11. For example, it includes two buttons respectively representing "+", "-". When the user presses the "+" button, the driving device can be controlled to drive the sound outlet nozzle 12 to extend relative to the housing 11. When the user presses the "-" button, the driving device can be controlled to drive the sound outlet nozzle 12 to retract relative to the housing 11. In this form, the user operation is relatively convenient. In addition to being a physical button, it can also be a virtual button formed in an application program on an electronic terminal. That is, the driving device in this embodiment can also be controlled by a remote control signal. In this way, during the adjustment process, the user does not need to touch the open earphone 1, so it is more convenient to use.

[0091] In summary, in the embodiment of the present application, by setting the sound outlet nozzle 12 to be able to move telescopically relative to the housing 11 and cooperating with the form of the adjusting mechanism 15, different users can adjust the distance between the sound outlet nozzle 12 and the ear canal opening according to their own wearing needs to obtain the best listening effect of the open earphone 1.

[0092] It should also be noted here that in the above-mentioned multiple embodiments, for the adjusting member 151 used for the user to operate to trigger the telescopic movement of the sound outlet nozzle 12 relative to the housing 11, the adjusting member 151 is exposed outside the housing 11 and can be specifically set on the side of the housing 11 facing away from the user's ear when the open earphone 1 is in a worn state. Since electronic components such as a circuit board and a speaker assembly 101 are installed at a position of the housing 11 far from the sound outlet nozzle 12 in the present application, the adjusting member 151 can be further set on the side of the speaker assembly 101 close to the sound outlet nozzle 12. On the one hand, it is convenient for the user to operate, and it can also avoid causing the housing 11 to be too large, making the overall structure of the machine more compact.

[0093] As Figure 14 、 Figure 16 、 Figure 18 As shown, the adjusting member 151 and the sound outlet nozzle 12 of the present application are arranged on different sides of the housing 11. Specifically, the side of the housing 11 includes a first side facing away from the user's ear when the open earphone 1 is in a worn state and a second side away from the wearing part 20. Then, the adjusting member 151 can be located on the first side, and the sound outlet nozzle 12 can be located on the second side. Such a setting meets the adjustment requirements of the user during actual use when the open earphone 1 is in a worn state, so it is more convenient to use.

[0094] The open earphone 1 in the embodiment of the present application can have multiple wearing methods to meet the use requirements of different use scenarios.

[0095] For example, in one embodiment, when the sound outlet nozzle 12 is in a contracted state, the sound outlet hole 121 is spaced from the user's ear canal opening; when the sound outlet nozzle 12 is in an extended state, the sound outlet hole 121 is not spaced from the user's ear canal opening. Specifically, the sound outlet nozzle 12 telescopically moves relative to the housing 11 between a first position and a second position; when the sound outlet nozzle 12 is in the first position, the sound outlet nozzle 12 extends relative to the housing 11, and a part of the sound outlet nozzle 12 and the sound outlet hole 121 extend into the user's ear canal opening, and at this time, the sound outlet hole 121 is not spaced from the user's ear canal opening; when the sound outlet nozzle 12 is in the second position, the sound outlet nozzle 12 contracts relative to the housing 11, the sound outlet nozzle 12 is located outside the user's ear canal opening and the sound outlet hole 121 is spaced from the ear canal opening. It should be noted here that in this embodiment, both the first position and the second position represent the extreme states of the sound outlet nozzle 12 during the adjustment process. In actual use, the user can also adjust the sound outlet nozzle 12 to an intermediate position between the first position and the second position according to their own situation.

[0096] When the sound outlet nozzle 12 is in the first position, since a part of the sound outlet nozzle 12 and the sound outlet hole 121 extend into the user's ear canal opening, that is, enter the ear canal, the open earphone 1 is switched to an in-ear wearing mode. In this way, it can effectively isolate external noise, enjoy clear sound quality without too high volume, protect hearing, and create a more immersive auditory experience for the user, such as providing excellent bass response and detail resolution to meet the needs of music lovers. When the sound outlet nozzle 12 is in the second position, since the sound outlet nozzle 12 is located outside the user's ear canal opening and the sound outlet hole 121 is spaced from the ear canal opening, the open earphone 1 is switched to an open wearing mode. In this way, it can allow external environmental sounds to enter and naturally blend with the sounds played by the open earphone 1, providing a more open and transparent listening experience and reducing the sense of oppression during long-term listening. The open earphone 1 of the present application can be switched between an in-ear wearing mode and an open wearing mode, greatly enriching the usage scenarios of the open earphone 1 and making the open earphone 1 more convenient to use.

[0097] Of course, the open earphone 1 of the present application can also only have an open wearing mode. During the telescopic movement of the sound outlet nozzle 12, the sound outlet hole 121 is always spaced from the ear canal opening. That is, in both the contracted state and the extended state of the sound outlet nozzle 12, the sound outlet hole 121 is always spaced from the user's ear canal opening.

[0098] Further, the sound generating part 10 further includes an ear cap 19. The ear cap 19 is sleeved outside the sound outlet nozzle 12 and has a sound generating hole 191; the ear cap 19 is used for making a sealing contact with the user's ear canal opening when the sound outlet nozzle 12 is in the first position. Among them, the ear cap 19 is made of a flexible material, for example, a silicone material can be used. Through the setting of the ear cap 19, a more tight seal of the ear canal opening can be achieved, so that external noise can be more effectively isolated.

[0099] Please refer to Figure 19 , the sound generating part 10 of the present application may further include a detection component 18, and the detection component 18 is used to generate a position detection signal during the telescopic movement of the sound outlet nozzle 12 relative to the housing 11. Specifically, the inspection component includes a detection member 181 and a trigger member 182. The detection member 181 is arranged on the housing 11, and specifically may be arranged inside the housing 11 and connected to the circuit board inside the housing 11. The trigger member 182 is arranged on the sound outlet nozzle 12. Among them, the detection member 181 may be one or two. When the detection member 181 is one, the position of the sound outlet nozzle 12 can be determined by the signal change of the detection member 181. When the detection member 181 is two, the two detection members 181 may be respectively arranged corresponding to the first position and the second position, so that the position of the sound outlet nozzle 12 can be determined by obtaining the signals of different detection members 181. For example, when the sound outlet nozzle 12 is in the first position, the corresponding detection member 181 is signal-coupled with the trigger member 182 to generate a detection signal, and when the sound outlet nozzle 12 is in the second position, the other corresponding detection member 181 is signal-coupled with the trigger member 182 to generate another detection signal.

[0100] With the above settings, when the open earphone 1 is in the in-ear state, the open earphone 1 of the present application can reduce the output power of the speaker assembly 101, which can ensure the listening effect while effectively protecting the user's ears. When the open earphone 1 is in the open state, in order to ensure the listening effect, the output power of the speaker assembly 101 can be correspondingly increased to increase the volume, so that the use effect of the open earphone 1 can be improved.

[0101] Specifically, the trigger member 182 may be a magnet, and the detection member 181 may be a Hall sensor. Of course, in other forms, the detection component 18 may also adopt the form of a microswitch or an optoelectronic switch, and the present application does not limit this.

[0102] During the use of the open earphone 1 of the present application, it can be worn on the user's ear through the wearing part 20, and its overall structure is relatively small and convenient to carry.

[0103] Please refer to Figures 22 to 24 , the open earphone 1 of the present application may be an ear-hook type earphone. Specifically, the wearing part 20 includes an ear hook 40 arranged in an arc shape. The ear hook 40 is connected to the housing 11, and the ear hook 40 is used to be hung between the back side of the user's ear and the head. Among them, the ear hook 40 is a flexible strip-shaped structure with the ability to deform and is adapted to the contour shape of the ear, so that it can adapt to ears of different sizes, without the need to select a specific size according to the ear size, and is suitable for most people to use, with high versatility.

[0104] The wearing part 20 may further include a battery compartment 50, and the battery compartment 50 is connected to one end of the earhook 40 away from the sound generating part 10. A battery 51 for powering the speaker assembly 101 is arranged in the battery compartment 50, and the battery 51 and the speaker assembly 101 are electrically connected through a wire passing through the earhook 40. The main control board in the open earphone 1 may be located in the sound generating part 10 or arranged in the battery compartment 50. In such a layout, during the wearing process, the battery compartment 50 is also located between the rear side of the user's ear and the head, and the battery compartment 50 has a certain weight, making the gravity distribution of the entire open earphone 1 on the ear more balanced. Therefore, it is more comfortable and stable during the wearing process.

[0105] It can be understood that when the open earphone 1 is an earhook-type earphone, the wearing part 20 may also only include the earhook 40. At this time, both the battery 51 and the speaker assembly 101 are located in the housing 11 of the sound generating part 10. Such a setting can make the wiring between the battery 51 and the speaker assembly 101 shorter. At this time, the size of the earhook 40 can be adjusted accordingly to obtain better wearing comfort and stability.

[0106] During the actual use of the open earphone 1, the ear sizes of each person are inconsistent, so the position where the sound generating part 10 contacts the ear may also vary slightly. And as mentioned above, the open earphone 1 of the present application can be worn in the in-ear manner. Therefore, in order to obtain a better wearing experience, the earhook 40 and the housing 11 of the present application can be further set to be rotatably connected. With such a setting, the user can rotate to adjust the posture of the sound generating part 10 to change the orientation of the sound outlet nozzle 12. On the one hand, after the sound outlet nozzle 12 is telescopically adjusted, the best posture can be obtained so that the sound can better enter the ear canal. On the other hand, by adjusting the posture of the sound generating part 10, the sound outlet nozzle 12 can also be aligned with the ear canal opening and partially enter the ear canal after being extended, so as to form good sealing contact with the skin of the ear canal and effectively isolate external noise.

[0107] In an embodiment, the earhook 40 includes an earhook body 41 and a rotating shaft 42. The rotating shaft 42 is connected to the end of the earhook body 41, and the end of the rotating shaft 42 away from the earhook body 41 is rotatably connected to the housing 11. Among them, the earhook body 41 may include an outer cover 411 and a shape memory metal part 412 (see Figure 21 ), the outer cover 411 is made of soft rubber material and wraps the shape memory metal part 412, and the rotating shaft 42 is fixed to the end of the outer cover 411. In this way, the earhook body 41 has good deformation ability and toughness. Among them, the end of the rotating shaft 42 is provided with a spherical head part 421 for rotatably connecting with the housing 11. In this way, it is convenient to form a stable rotating connection relationship between the rotating shaft 42 and the housing 11 and it is not easy to become loose.

[0108] Further, a damping assembly 43 is also provided on the housing 11, and the damping assembly 43 elastically abuts against the rotating shaft 42. In this embodiment, the damping assembly 43 elastically abuts against the rotating shaft 42. During the rotation adjustment process of the sound generating part 10 relative to the rotating shaft 42, on the one hand, the damping assembly 43 provides a tactile hint for the user during the adjustment process. On the other hand, after the rotation adjustment, the damping assembly 43 can also provide a damping force to ensure that the sound generating part 10 stably stays in the adjusted posture. When not subjected to too much impact force, the posture of the sound generating part 10 remains unchanged, which is beneficial for use in sports scenarios.

[0109] Please refer to Figures 23 to 25 , the damping assembly 43 includes a damping spring piece 431 and a damping adjusting nut 432. The damping adjusting nut 432 is threadedly connected to the housing 11, and the damping spring piece 431 is clamped between the damping adjusting nut 432 and the ball head 421. In this embodiment, an installation hole is formed on the housing 11, the rotating shaft 42 passes through the installation hole, and the ball head 421 is located inside the housing 11 and is blocked by the inner wall of the housing 11 in the direction away from the housing 11. Such a structural form can enable the rotating shaft 42 and the housing 11 to be firmly connected, and the damping assembly 43 has a large contact area with the ball head 421, resulting in a better damping effect. During the assembly process of this embodiment, the tightness of the damping adjusting nut 432 can be adjusted to adjust the magnitude of the elastic pressing of the damping spring piece 431 against the ball head 421, thereby adjusting the magnitude of the damping force, so as to obtain the best damping feel.

[0110] For the convenience of assembly, a bushing 118 can also be provided on the housing 11 of the present application. The above-mentioned installation hole is formed by the bushing 118, and the outer diameter of the ball head 421 is greater than the inner diameter of the bushing 118. The bushing 118 can be made of a metal material. In this way, during the assembly process, the rotating shaft 42 can be passed through the bushing 118 first, and then the bushing 118 can be fixed on the housing 11. The bushing 118 and the housing 11 can be adhesively fixed, heat-melted and fixed, etc. In such a structural form, during the rotation process of the sound generating part 10, mutual friction actually occurs between the rotating shaft 42 and the bushing 118, so as to avoid wear of the housing 11 material during long-term use, thereby extending the service life.

[0111] The above describes the case where the open earphone 1 of the present application is an ear-hook type earphone. However, the open earphone 1 of the present application can also be an ear-clip type earphone, where Figures 1 to 10An earclip-type earphone is exemplarily shown. Specifically, the wearing part 20 includes a connecting bridge 30 and a battery compartment 50. Both ends of the connecting bridge 30 are respectively connected to the housing 11 and the battery compartment 50, and the housing 11 and the battery compartment 50 are oppositely arranged. Among them, the connecting bridge 30 is arc-shaped and is also an elastic structure, and provides an elastic clamping force for the wearing of the entire open earphone 1. During the specific wearing process, the sound generating part 10 is located on the front side of the ear, while the battery compartment 50 is located between the rear side of the ear and the head. The connecting bridge 30 spans across the ear in the front-back direction, and enables the sound generating part 10 and the battery compartment 50 to cooperate to clamp the auricle.

[0112] In the case where the open earphone 1 in the present application is an earclip-type earphone, it can adapt to various ear shapes, and can remain stable even during exercise, is not easy to fall off, and is suitable for high-intensity activities such as fitness and running.

[0113] 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. It 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.

[0114] The above is only a preferred embodiment of the present application and is 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 open earphone, characterized in that, include: Wearing part; as well as A sound-emitting part, the sound-emitting part comprising a shell and a sound outlet, the shell being connected to the wearing part, the sound outlet being movably connected to the shell, the sound outlet being provided with a sound outlet, and the sound outlet being retractably movable relative to the shell, so that the open-type earphone can adjust the distance between the sound outlet and the user's ear canal opening when being worn; In the contracted state, the sound outlet is spaced apart from the opening of the user's ear canal.

2. The open earphone according to claim 1, characterized in that, The open earphone further comprises an adjusting mechanism, and the adjusting mechanism is used for driving the sound outlet to move telescopically relative to the shell.

3. The open earphone according to claim 2, characterized in that, The adjusting mechanism comprises an adjusting member and a transmission structure, wherein the transmission structure is transmission-connected to the adjusting member and the sound outlet, the adjusting member is movably connected to the shell, and the adjusting member is used to drive the sound outlet to telescopically move relative to the shell through the transmission structure.

4. The open earphone according to claim 3, characterized in that The transmission structure includes a gear structure and a rack, the gear structure is connected to the adjusting member, the rack is meshed with the gear structure and fixedly connected to the sound outlet.

5. The open earphone according to claim 4, characterized in that, The adjusting member includes an adjusting knob and a driving shaft connected to the adjusting knob. The adjusting knob is exposed from the shell. The shell is provided with an axial hole. The driving shaft is rotatably inserted into the axial hole and is in transmission connection with the transmission structure.

6. The open earphone according to claim 5, wherein The gear structure comprises a first bevel gear and a second bevel gear meshing with each other, the driving shaft is drivingly connected to the first bevel gear, the housing is provided with a mounting shaft, and the second bevel gear is rotatably sleeved on the mounting shaft; The second bevel gear includes a first tooth portion and a second tooth portion which are coaxially arranged, the first tooth portion is meshed with the first bevel gear, and the second tooth portion is meshed with the rack.

7. The open earphone according to claim 5, characterized in that, A limiting structure is also provided on the sound-emitting part; the limiting structure includes a first limiting part and two second limiting parts, the first limiting part is provided on one of the adjusting knob and the shell, and the two second limiting parts are arranged at intervals on the other of the adjusting knob and the shell, and when the adjusting knob is rotated to the maximum adjustment angle position, the first limiting part selectively cooperates with one of the two second limiting parts in a limiting manner.

8. The open earphone according to claim 7, wherein The first limiting portion is a ball-shaped body provided on the adjusting knob, and the second limiting portion is a stop groove provided on the housing.

9. The open earphone according to claim 3, wherein, The transmission structure includes a first helical structure and a second helical structure, wherein the first helical structure is arranged on one of the adjusting member and the sound outlet, and the second helical structure is arranged on the other of the adjusting member and the sound outlet, and the first helical structure is spirally matched with the second helical structure.

10. The open earphone according to claim 9, characterized in that, The adjusting member comprises an adjusting cylinder, and the adjusting cylinder is rotatably sleeved on the outside of the shell. The adjusting cylinder drives the sound outlet to move telescopically relative to the shell through the transmission structure.

11. The open earphone according to claim 10, wherein, The first helical structure is a helical groove, and the second helical structure is a thread; the adjusting cylinder includes a sleeve portion and a mounting portion extending inwards from the sleeve portion. The sleeve portion is sleeved outside the housing, and the mounting portion is connected to one end of the sleeve portion away from the wearing portion. The thread is provided on the mounting portion, and the helical groove is provided on the sound outlet nozzle.

12. The open earphone according to claim 3, characterized in that, The open earphone further includes a speaker assembly located inside the housing, and the adjusting member is exposed outside the housing and located on a side of the speaker assembly close to the sound outlet nozzle.

13. The open earphone according to claim 12, characterized in that, The adjusting member and the sound outlet nozzle are provided on different sides of the housing.

14. The open earphone according to claim 2, characterized in that, The adjusting mechanism includes a driving device for driving the sound outlet nozzle to telescopically move relative to the housing.

15. The open earphone according to any one of claims 1 to 14, characterized in that, A guide groove is provided on one of the inner wall of the housing and the sound outlet nozzle, and a guide block is provided on the other of the inner wall of the housing and the sound outlet nozzle. The guide groove extends along the telescopic movement direction of the sound outlet nozzle, and the guide block is slidably provided in the guide groove.

16. The open earphone according to any one of claims 1 to 14, characterized in that, The sounding part further includes an ear cap sleeved outside the sound outlet nozzle, and the ear cap has a sounding hole communicating with the sound outlet hole.

17. The open earphone according to any one of claims 1 to 14, characterized in that, The wearing portion includes an arc-shaped ear hook connected to the housing, and the ear hook is used for hanging between the rear side of the user's ear and the head.

18. The open earphone according to claim 17, wherein The ear hook is rotatably connected to the housing.

19. The open earphone according to claim 18, wherein The ear hook includes an ear hook body and a rotating shaft. The rotating shaft is connected to the end of the ear hook body, and one end of the rotating shaft away from the ear hook body is rotatably connected to the housing.

20. The open earphone according to claim 19, characterized in that, A spherical head is provided at the end of the rotating shaft, and the spherical head is rotatably connected to the housing.

21. The open earphone according to claim 20, characterized in that, A damping assembly is further provided on the housing, and the damping assembly elastically abuts against the spherical head.

22. The open earphone according to claim 21, wherein The damping assembly includes a damping spring piece and a damping adjusting nut. The damping adjusting nut is threadedly connected to the housing, and the damping spring piece is clamped between the damping adjusting nut and the spherical head.

23. The open earphone according to claim 17, wherein The wearing portion further includes a battery compartment connected to one end of the ear hook away from the sounding part.

24. The open earphone according to any one of claims 1 to 14, characterized in that, The wearing portion includes a connecting bridge and a battery compartment. Two ends of the connecting bridge are respectively connected to the housing and the battery compartment, and the housing and the battery compartment are oppositely arranged.

25. The open earphone according to any one of claims 1 to 14, characterized in that, It further includes a detection assembly. The detection assembly includes a detector and a trigger. The detector is provided on the housing, and the trigger is provided on the sound outlet nozzle. During the telescopic movement of the sound outlet nozzle, the detector is triggered by the trigger to generate a position detection signal.

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