Open earphone and earphone system

Abstract

The application provides an open earphone and an earphone system, and relates to the technical field of earphones. The open earphone comprises a sound generating part, the sound generating part can be accommodated in the concha cavity of a human body; an ear hook connected with the sound generating part, the ear hook can be attached to the auricle of the human body and extend to the back side of the auricle of the human body below the antitragus; and a battery compartment, the battery compartment is detachably connected with one end of the ear hook extending to the back side of the auricle of the human body, and the battery compartment and the sound generating part jointly hold the auricle of the human body; wherein the specification of the battery compartment can be configured in multiple ways. The open earphone provided by the application can improve its applicability.

Description

Technical Field

[0001] This application relates to the field of headphone technology, and more particularly to an open-back headphone and headphone system. Background Technology

[0002] When worn, open-back headphones have their sound-producing part located outside the ear canal, without needing to be inserted into the ear. Compared to in-ear headphones, the structure of open-back headphones reduces the risk of otitis externa caused by prolonged wear, hence their increasingly widespread use. However, when wearing open-back headphones, pressure is applied to the auricle, and different users have varying degrees of sensitivity to this pressure, resulting in poor suitability for most users. Utility Model Content

[0003] In view of the above problems, this application provides an open-back headphone and headphone system, which can improve the applicability of open-back headphones.

[0004] To achieve the above objectives, the embodiments of this application provide the following technical solutions:

[0005] In a first aspect, embodiments of this application provide an open-back headphone, comprising:

[0006] The vocal cords, which can be housed within the concha of the human ear;

[0007] Ear hooks are connected to the sound-producing part and can fit snugly against the human ear and extend around the lower part of the earlobe to the back of the human ear.

[0008] The battery compartment is detachably connected to one end of the ear hook that extends to the back of the ear. The battery compartment and the sound-emitting part together hold the ear.

[0009] The battery compartment can be configured in various sizes.

[0010] In some embodiments of this application, the specifications of the battery compartment include the weight of the battery compartment;

[0011] The battery compartment weighs 2.7g or more and 9g or less.

[0012] In some embodiments of this application, the weight of the battery compartment is set to one of 3g, 5g, 7g or 9g.

[0013] In some embodiments of this application, the specifications of the battery compartment include its volume, which is set to 300 mm². 3 600mm 3 900mm 3 1200mm 3 Or 1500mm 3 One of them.

[0014] In some embodiments of this application, an installation structure is provided at one end of the ear hook that extends to the back of the human auricle;

[0015] A connection structure is provided at one end of the battery compartment that is detachably connected to the ear hook;

[0016] The battery compartment and ear hooks are detachably connected via the mounting and connecting structures.

[0017] In some embodiments of this application, the connection structure includes a first magnetic element, and the mounting structure includes a second magnetic element;

[0018] When the battery compartment is connected to the ear hook, the first magnetic component and the second magnetic component attract each other.

[0019] In some embodiments of this application, the connecting structure includes a protrusion, the mounting structure includes a limiting portion, the protrusion is spaced apart from the first magnetic element, and the limiting portion is spaced apart from the second magnetic element;

[0020] When the battery compartment is connected to the ear hook, the protrusion and the limiting part cooperate and abut against each other.

[0021] In some embodiments of this application, one of the connection structure and the mounting structure includes a snap-fit ​​portion, and the other includes a snap-fit ​​groove;

[0022] When the battery compartment is connected to the ear hook, the snap-fit ​​part snaps into the snap-fit ​​slot.

[0023] In some embodiments of this application, a first connector is provided at one end of the battery compartment connected to the ear hook, and a second connector is provided at one end of the ear hook extending to the back of the human auricle.

[0024] The battery compartment is electrically connected to the ear hook via a connection between the first connector and the second connector.

[0025] Secondly, embodiments of this application provide an earphone system, including the open-back earphones and charging case as described above;

[0026] The open-back earbuds are stored in the charging case.

[0027] This application provides an open-back headphone, which includes a speaker, an ear hook, and a battery compartment. The speaker is housed within the concha of the ear. One side of the ear hook is connected to the speaker and conforms to the ear, extending around the lower part of the earlobe to the back of the ear. The other side of the ear hook is detachably connected to the battery compartment. The battery compartment can be configured in various sizes, allowing the open-back headphone to be configured in multiple ways. This enables users to choose the appropriate size based on their personal comfort and usage scenario, thereby improving the versatility of the open-back headphone.

[0028] In addition to the technical problems solved by the embodiments of this application, the technical features constituting the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions as described above, other technical problems that this application can solve, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further explained in detail in the specific embodiments. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the structure of an open-back headphone when worn, as provided in an embodiment of this application.

[0031] Figure 2 This is a schematic diagram of the first state structure of an open-back headphone provided in an embodiment of this application;

[0032] Figure 3 This is a schematic diagram of the second state structure of the open-back headphones provided in an embodiment of this application;

[0033] Figure 4 A schematic diagram of the connection point of an open-back headphone provided in an embodiment of this application;

[0034] Figure 5 This is a schematic diagram of another structure of the connection point of the open-back headphones provided in an embodiment of this application.

[0035] Figure label:

[0036] 100- Open-back headphones;

[0037] 10-Sound-producing part; 11-Shell; 111-Sound outlet;

[0038] 20 - Ear hooks; 30 - Battery compartment;

[0039] 2- Human auricle; 200- Concha; 300- Ear canal;

[0040] 210 - Second magnetic component; 220 - Limiting part; 230 - Second connector; 240 - Annular groove; 250 - Spring; 260 - First hook; 2211 - Adjusting component; 2212 - Outer layer; 2213 - Sleeve;

[0041] 310 - First magnetic component; 320 - Protrusion; 330 - First connector; 360 - Second hook. Detailed Implementation

[0042] In related technologies, open-back headphones, when worn, have their sound-producing part located outside the ear canal and do not need to be inserted into the ear. When a user wears open-back headphones, the headphones apply pressure to the auricle. Users' sensitivity to this pressure varies. For example, some users may be very sensitive to changes in weight, and a slight increase in the weight of open-back headphones may cause discomfort or fatigue; while other users may be less sensitive to changes in weight and can comfortably wear heavier headphones. Therefore, this results in poor applicability of open-back headphones, failing to meet the needs of different users.

[0043] To address the aforementioned issues, this application provides an open-back headphone, comprising a speaker, ear hooks, and a battery compartment. The speaker is housed within the concha of the ear. One side of the ear hook is connected to the speaker and conforms to the ear, extending around the lower part of the earlobe to the back of the ear. The other side of the ear hook is detachably connected to the battery compartment. The battery compartment can be configured in various sizes, allowing the open-back headphone to be configured in multiple ways. This enables users to choose the appropriate size based on their personal comfort and usage scenario, thereby improving the versatility of the open-back headphone.

[0044] To make the above-mentioned objectives, features, and advantages of the embodiments of this application more apparent and understandable, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0045] It is understandable that individual differences may exist among users, resulting in variations in ear shape, size, and other dimensions. For ease of description and understanding, unless otherwise specified, this specification will primarily use an ear model with a "standard" shape and size as a reference to further describe how the acoustic device in different embodiments is worn on this ear model. For example, a simulator containing a head and its (left and right) ears, such as the GRAS 45BCK EMAR, manufactured based on ANSI:S3.36, S3.25 and IEC:60318-7 standards, can be used as a reference for wearing the acoustic device, thus representing the scenario where most users normally wear the acoustic device. Therefore, in this specification, descriptions such as "user wearing," "in wearing state," and "under wearing state" can refer to the acoustic device of this specification being worn on the ear of the aforementioned simulator. Of course, considering the individual differences among different users, the structure, shape, size, thickness, etc. of one or more parts of the ear can be designed differently according to the different shapes and sizes of ears. These differentiated designs can be expressed as the characteristic parameters of one or more parts of the acoustic device having different ranges of values, so as to adapt to different ears.

[0046] Combination Figure 1 and Figure 2 As shown, this application provides an open-back headphone 100, which includes a sound-generating part 10 responsible for producing sound. The sound-generating part 10 is placed within the concha cavity 200, which can reduce sound leakage and improve the clarity of sound quality and the effective transmission of volume.

[0047] The sound-emitting part 10 includes a housing 11 and a speaker assembly, with the housing 11 enclosing an acoustic cavity. The speaker assembly is located within the acoustic cavity and includes at least one speaker unit. A sound outlet 111 is provided on the side of the housing 11 closest to the human ear canal 300; that is, a sound outlet 111 is provided on the side of the housing 11 opposite to the human ear canal 300. The diaphragm of the speaker unit is positioned close to the sound outlet 111, allowing sound to pass directly from the diaphragm through the sound outlet 111 and be transmitted to the human ear canal 300. This reduces sound wave reflection and loss within the cavity, helping to improve sound clarity and purity, ensuring the user hears a more realistic and detailed sound. Furthermore, because the distance between the speaker unit's diaphragm and the sound outlet 111 is short, the sound propagation path is more direct, reducing the possibility of multiple reflections of sound waves within the acoustic cavity, thereby reducing distortion and providing more accurate sound quality.

[0048] The open-back headphone 100 includes an ear hook 20, which is connected to the sound-producing part 10. The ear hook 20 can fit against the human ear 2 and extend downward around the earlobe to the back of the human ear 2.

[0049] Reference Figure 3 As shown, one end of the ear hook 20 is connected to the battery compartment 30, and the other end of the ear hook 20 is connected to the sound-emitting part 10. An adjustment member 2211 is provided inside the ear hook 20, which is used to clamp the open-back headphones 100 to the human ear.

[0050] The open-back headphones 100 include a battery compartment 30 containing a battery to provide power to the headphones 100. The battery compartment 30 is detachably connected to one end of the ear hook 20 that extends to the back of the ear 2. The battery compartment 30 and the sound-emitting part 10 together hold the ear 2 to provide additional support and stability, preventing the open-back headphones 100 from slipping off during exercise or prolonged wear.

[0051] The battery compartment 30 is located behind the human ear 2, which helps to balance the weight distribution of the open-back headphones 100 and reduce discomfort or slippage caused by the shift in the center of gravity of the open-back headphones 100.

[0052] On the other hand, the ear hook 20 is used to connect the battery compartment 30 and the sound-emitting part 10, providing a physical connection between the battery compartment 30 and the sound-emitting part 10, and also ensuring the integrity of the structure of the open-back headphone 100. Specifically, the ear hook 20 is provided with an adjustment member 2211, which can be adjusted according to the shape and size of different users' ears to ensure that the open-back headphone 100 can be firmly clamped on the human ear 2 without putting too much pressure on the human ear 2.

[0053] The main function of the adjustment component 2211 is to control the clamping force of the open-back headphones 100 by adjusting the tension of the ear hook 20. Users can adjust the clamping force according to their own comfort needs. Different users have different ear shapes and sizes, and the adjustment component 2211 allows users to make fine adjustments according to individual differences, providing a personalized wearing experience. This not only improves wearing comfort but also enhances the stability of the headphones and reduces the risk of slipping.

[0054] Furthermore, in some embodiments, the adjustment element 2211 includes a shape memory alloy wire extending along the extension direction of the ear hook 20. One end of the shape memory alloy wire is connected to the battery compartment 30, and the other end is connected to the sound-emitting part 10. It is understood that the shape memory alloy wire possesses both good flexibility to adapt to the ear curves of different users and sufficient strength to ensure that the open-back headphone 100 will not easily deform or be damaged during use, thus providing a comfortable wearing experience while maintaining structural stability.

[0055] In some other embodiments, the adjusting member 2211 may also include adjusting structures such as elastic plastic, spring mechanism and magnetic adjusting member. This application is not limited to these, as long as they can perform the corresponding functions.

[0056] Specifically, the ear hook 20 includes a sleeve 2213, which is fitted onto the end of the shape memory alloy wire, and the sleeve 2213 is made of a rigid material. To install the shape memory alloy wire, the sleeve 2213 is connected to the end of the wire, fixing both ends of the wire near the battery compartment 30 or the sound-emitting part 10. The sleeve 2213 provides a limiting effect on the shape memory alloy wire, ensuring it will not loosen or shift during use, guaranteeing that the wire can withstand uniform pressure distribution, and ensuring that the open-back headphones 100 can evenly distribute the pressure of the auricle 2 throughout the wearing process, providing a more comfortable wearing experience. Simultaneously, the sleeve 2213 also protects the shape memory alloy wire from external environmental influences, extending its service life.

[0057] The rigid sleeve 2213 enhances the overall structural strength of the ear hook 20, preventing it from bending or deforming excessively under external force. This not only improves the durability of the open-back headphones 100 but also ensures their stability in various usage scenarios.

[0058] The ear hook 20 also includes an outer layer 2212, the two ends of which are connected to the battery compartment 30 and the sound-emitting part 10. The outer layer 2212 covers the outer surface of the adjustment member 2211. As part of the ear hook 20, the outer layer 2212 achieves a stable connection between the battery compartment 30, the sound-emitting part 10, and the adjustment member 2211. This integrated design can effectively reduce the risk of loosening or falling off of the components during wear. Furthermore, the outer layer 2212 covering the outer surface of the adjustment member 2211 can also protect the adjustment member 2211 from external interference. In some embodiments, the outer layer 2212 can also limit the maximum stretch limit of the adjustment member 2211 to prevent it from being overstretched or broken in extreme cases. This not only improves the safety of the open-back headphones 100 but also extends the service life of the adjustment member 2211, ensuring that the open-back headphones 100 can maintain good performance even after long-term use.

[0059] In addition, the ear hook 20 also includes a connecting wire disposed inside the outer sheath 2212. The connecting wire extends along the extension direction of the ear hook 20 and electrically connects the battery compartment 30 and the sound-generating part 10. In this embodiment, the main function of the connecting wire is to transmit power from the battery compartment 30 to the sound-generating part 10, thereby ensuring that the open-back headphones 100 can work continuously and provide stable audio output. In other embodiments, the connecting wire can also be used to transmit audio signals and control signals, and can transmit instructions from the control circuit in the battery compartment 30 to perform functions such as volume adjustment and song switching.

[0060] The battery case 30 can be configured in multiple ways, and the battery case 30 is detachably connected to the ear hook 20. This allows the open-back headphones 100 to be configured in various ways, enabling users to choose the appropriate configuration based on their personal comfort and usage scenario, thereby improving the applicability of the open-back headphones.

[0061] For example, the battery case 30 is lightweight, making it easy for users to not perceive the presence of the open-back headphones 100, requiring manual confirmation. The weight of the battery case 30 can be configured in various ways to easily increase the weight of the open-back headphones 100, thereby making the users aware of their presence. Furthermore, the weight of the battery case 30 may increase the battery life of the open-back headphones 100.

[0062] The specifications of the battery compartment 30 include its weight. Different specifications of battery compartment 30 are obtained by setting different weights for the battery compartment 30.

[0063] For example, the weight of the battery compartment 30 is adjusted by changing the size of the battery. This allows users to choose the appropriate weight according to their needs. Furthermore, a heavier battery compartment 30 can provide longer battery life.

[0064] For example, the battery compartment 30 contains multiple identical batteries. The weight of the battery compartment 30 can be adjusted by changing the number of batteries. This arrangement facilitates the adjustment of the weight of the battery compartment 30.

[0065] For example, the size of the batteries inside the battery compartment 30 remains unchanged, while the weight of the battery compartment 30 is adjusted by adding counterweights. This eliminates the need to adjust the size or number of batteries, requiring only the adjustment of the counterweights, which facilitates the mass production of the battery compartment 30 and the batteries.

[0066] If the battery case 30 weighs less than 2.7g, the battery life of the open-back earphones 100 will be too short to meet daily needs. If the battery case 30 weighs more than 9g, the earphones 100 will be too heavy, causing pressure on the auricle 2 (conch cavity 200) and discomfort. Therefore, the weight of the battery case 30 is greater than or equal to 2.7g and less than or equal to 9g. This balances the battery life requirement with the prevention of pressure on the auricle 2.

[0067] The weight of the battery compartment 30 is any value between 2.7g and 3.8g; or the weight of the battery compartment 30 is any value between 2.9g and 3.6g; or the weight of the battery compartment 30 is any value between 3.1g and 3.4g.

[0068] The weight of the battery compartment 30 is any value among 2.7g±0.1g, 2.9g±0.1g, 3.1g±0.1g, 3.3g±0.1g, 3.5g±0.1g, or 3.7g±0.1g.

[0069] The battery compartment 30 can be set to weigh 3g. This makes the open-back headphones 100 lighter, which can reduce the pressure of the open-back headphones 100 on the human ear 2 and avoid discomfort caused by wearing the open-back headphones 100.

[0070] The battery case 30 can be set to weigh 5g. This allows the open-back headphones 100 to maintain their portability while providing a slightly longer battery life.

[0071] The weight of the battery compartment 30 can be set to 7g. This increases the weight of the battery compartment 30, which can balance the battery life and weight.

[0072] The battery case 30 can be set to weigh 9g. This increases the weight of the battery case 30, making it suitable for users who are not sensitive to the weight of the open-back headphones 100.

[0073] By allowing the battery case 30 to be set to 3g, 5g, 7g, or 9g, the needs of different users can be met, thus improving the applicability of the open-back headphone 100.

[0074] The specifications of the battery compartment 30 include its volume, which is set to be greater than or equal to 300 mm². 3 Less than or equal to 1500mm 3 The smaller size of the battery case 30 reduces the space occupied by the open-back earphones 100. The larger size of the battery case 30 allows for increased battery capacity and improved battery life.

[0075] The volume of the battery compartment 30 is set to 300mm. 3 600mm 3 900mm 3 1200mm 3 Or 1500mm 3 One of them is to improve the adaptability of the open-back headphone 100.

[0076] The specifications of the battery compartment 30 include its color, which can be set in different colors to meet different customer needs. For example, the battery compartment 30 can be set in one of the following colors: red, blue, green, or pink.

[0077] The specifications of the battery case 30 include its material. Different materials can be used for the battery case 30 to meet various needs and improve the adaptability of the open-back headphones 100. For example, the battery case 30 can be made of plastic to reduce the weight of the open-back headphones 100. The battery case 30 can be made of aluminum alloy to improve heat dissipation. The battery case 30 can be made of stainless steel to improve the durability of the open-back headphones 100.

[0078] Reference Figure 4 As shown, a first connector 330 is provided at one end of the battery compartment 30 connected to the ear hook 20, and a second connector 230 is provided at the other end of the ear hook 20 extending to the back of the ear 2. The battery compartment 30 and ear hook 20 are electrically connected via the first connector 330 and the second connector 230, and the battery compartment 30 provides power to the sound-emitting part 10 of the open-back headphone 100 through the connecting wires inside the ear hook 20. The connection position of the first connector 330 and the second connector 230 is located at the back of the ear 2, which helps to conceal the connection structure and improves the aesthetics and wearing comfort of the open-back headphone 100.

[0079] For example, the first connector 330 can be designed as a multi-pin plug, a magnetic adsorption interface, or a contact spring, which can achieve a fast and reliable connection.

[0080] One of the first connector 330 and the second connector 230 is designated as a male pin, and the other is designated as a female pin. Through the cooperation of the male and female pins, the open-back earphone 100 can maintain a stable connection in various usage environments, improving the reliability of the open-back earphone 100. Furthermore, the male and female pin connection method is highly versatile, facilitating the replacement of battery compartments 30 of different weights.

[0081] One end of the ear hook 20 is connected to the sound-generating part 10, and the other end of the ear hook 20 is provided with a mounting structure. That is, the end of the ear hook 20 that extends to the back of the human auricle 2 has a mounting structure. One end of the battery compartment 30 is a free end, and the other end of the battery compartment 30 is provided with a connecting structure. That is, the end of the battery compartment 30 that is detachably connected to the ear hook 20 has a connecting structure. The battery compartment 30 and the ear hook 20 are detachably connected through the mounting structure and the connecting structure. Through the mounting structure and the connecting structure, users can easily replace the battery compartment 30 with different sizes as needed, thereby improving the applicability of the open-back headphones 100.

[0082] Continue to refer to Figure 4As shown, the connection structure includes a first magnetic component 310, and the mounting structure includes a second magnetic component 210. When the battery compartment 30 is connected to the ear hook 20, the first magnetic component 310 and the second magnetic component 210 attract each other. This attraction makes the connection process between the battery compartment 30 and the ear hook 20 simple and quick. The user only needs to bring the battery compartment 30 close to the ear hook 20; the battery compartment 30 will automatically adhere and be fixed due to the attraction between the first magnetic component 310 and the second magnetic component 210. Disassembly is simple: apply a force away from the ear hook 20 to separate the battery compartment 30 from the ear hook 20, improving user convenience.

[0083] For example, the first magnetic component 310 and the second magnetic component 210 can be respectively set as strong magnets with different magnetic properties so that the battery compartment 30 and the ear hook 20 can be firmly connected.

[0084] In addition, the first magnetic component 310 and the second magnetic component 210 can be respectively disposed inside the ear hook 20 and the battery compartment 30, making the appearance of the open-back headphones 100 more concise and without exposed connecting parts, which can improve the aesthetics of the open-back headphones 100.

[0085] The connecting structure includes a protrusion 320, and the mounting structure includes a limiting part 220. The protrusion 320 is spaced apart from the first magnetic element 310, and the limiting part 220 is spaced apart from the second magnetic element 210. When the battery compartment 30 is connected to the ear hook 20, the protrusion 320 and the limiting part 220 cooperate and abut against each other. Multiple protrusions 320 and limiting parts 220 can be provided to achieve multi-directional limiting.

[0086] For example, the protrusion 320 can be configured as a cylindrical protrusion, and the limiting part 220 can be configured as a matching cylindrical hole. By inserting the cylindrical protrusion into the cylindrical hole, the ear hook 20 and the battery compartment 30 are positioned during the connection process.

[0087] For example, the protrusion 320 can be configured as a spherical protrusion, and the limiting part 220 can be configured as a matching spherical groove. By inserting the spherical protrusion into the spherical groove, the ear hook 20 and the battery compartment 30 can be connected and positioned.

[0088] One of the connection structure and the mounting structure includes a snap-fit ​​part (not shown in the figure), and the other includes a snap-fit ​​groove (not shown in the figure). When the battery compartment 30 is connected to the ear hook 20, the snap-fit ​​part slightly deforms and snaps into the snap-fit ​​groove. The user only needs to align the snap-fit ​​part with the snap-fit ​​groove and press the snap-fit ​​part to complete the installation. When the battery compartment 30 is disconnected from the ear hook 20, the user only needs to apply a small amount of external force to pull the snap-fit ​​part out of the snap-fit ​​groove. This design saves time and effort, making the installation and removal process of the battery compartment 30 simple and quick.

[0089] For example, the connecting structure includes a first snap-fit ​​portion and a second snap-fit ​​portion, which are disposed on the inner wall of the ear hook 20's outer shell and are symmetrically arranged. The mounting structure includes a first snap-fit ​​groove and a second snap-fit ​​groove. When the battery compartment 30 is connected to the ear hook 20, the battery compartment 30 is pushed toward the ear hook 20 until the first snap-fit ​​portion and the second snap-fit ​​portion respectively snap into the first snap-fit ​​groove and the second snap-fit ​​groove. When the battery compartment 30 is disassembled from the ear hook 20, the outer surfaces of the first snap-fit ​​portion and the second snap-fit ​​portion are pinched, and a relative force is applied to the first snap-fit ​​portion and the second snap-fit ​​portion, causing them to move closer together. The first snap-fit ​​portion and the second snap-fit ​​portion can then disengage from the first snap-fit ​​groove and the second snap-fit ​​groove, thereby allowing the battery compartment 30 to be removed. This design facilitates installation and disassembly.

[0090] Reference Figure 5 As shown, in some possible embodiments, the mounting structure includes an annular groove 240 and a spring 250 fixed within the annular groove 240. The first end of the spring 250 can be fixed to the annular groove 240 by adhesive bonding. The second end of the spring 250 is a free end.

[0091] The mounting structure also includes multiple first hooks 260, which are evenly distributed on the inner wall of the ear hook 20 housing. The connecting structure includes multiple second hooks 360, which are configured to cooperate with the multiple first hooks 260.

[0092] When connecting the battery compartment 30 to the ear hook 20, first adjust the relative positions of the battery compartment 30 and the ear hook 20, aligning the multiple second hooks 360 with the multiple first hooks 260 in a staggered state. When the battery compartment 30 approaches the ear hook 20, it compresses the spring 250 inside the ear hook 20. After electrically connecting the battery compartment 30 and the ear hook 20, rotate the battery compartment 30 to engage the multiple second hooks 360 with the multiple first hooks 260 respectively. Under the elastic force of the spring 250 and the combined action of the second hooks 360 and the first hooks 260, the battery compartment 30 and the ear hook 20 are connected. This design allows the battery compartment 30 to be removed without special tools. Furthermore, this structure is simple and easy to manufacture.

[0093] This application also provides an earphone system, including the open-back earphone 100 as described above and a charging case. The open-back earphone 100 can be stored in the charging case, making it easy to carry and allowing users to place the earphones in a pocket, bag, or other portable container. The charging case provides a compact storage space for the open-back earphone 100 and protects it from external damage.

[0094] The various embodiments or implementation methods described in this specification are presented in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0095] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0096] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

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