Earphone and earphone case thereof

Abstract

The application provides an earphone and an earphone case thereof. The earphone case comprises a first cover body, a second cover body, a first battery and a second battery. The first cover body and the second cover body are hinged. The first cover body and the second cover body can be covered with each other to form a containing space for containing an earphone body. The first battery is arranged in the first cover body, and the second battery is arranged in the second cover body. The first cover body and the second cover body are both provided with batteries, the two batteries are electrically connected to form an energy storage assembly, the internal space of the earphone case is more fully utilized, the overall battery capacity is significantly improved, a longer endurance time can be provided, and the long-time use requirement of a user can be met.

Description

Technical Field

[0001] This application belongs to the field of headphones, and more specifically, relates to a pair of headphones and its charging case. Background Technology

[0002] With the increasing popularity of wireless earbuds, users have placed higher demands on battery life and portability. Existing earbud charging cases typically consist of a case and a cover, with the cover hinged to the case to open and close. The battery is usually located inside the case, and its capacity is limited by the internal space, resulting in a relatively low battery capacity that is insufficient to meet users' needs for extended use. Utility Model Content

[0003] The purpose of this application is to provide an earphone and its charging case to solve the technical problem that the battery capacity of the charging case in the prior art is low and cannot meet the needs of users for long-term use.

[0004] To achieve the above objectives, the technical solution adopted in this application is: to provide an earphone case, characterized in that the earphone case includes:

[0005] First cover;

[0006] The second cover; the first cover and the second cover are hinged together, and the first cover and the second cover can close together to form a receiving space for accommodating the headphone body;

[0007] First battery; the first battery is disposed within the first cover body;

[0008] Second battery; the second battery is disposed within the second cover body;

[0009] The first battery and the second battery are electrically connected to form the energy storage component of the earphone compartment.

[0010] Optionally, the first cover and the second cover are at least partially symmetrical to each other.

[0011] Optionally, the first cover includes a first outer shell, and the second cover includes a middle frame and a second outer shell, with the middle frame connected to the side of the second outer shell close to the first cover;

[0012] With the earphone compartment closed, the first outer shell, the middle frame, and the second outer shell are exposed outside the earphone compartment, and the first and second outer shells are symmetrically arranged on both sides of the middle frame.

[0013] Optionally, the earphone case also includes a charging / discharging interface, which is electrically connected to the energy storage component. A charging circuit and a reverse charging circuit are provided between the charging / discharging interface and the energy storage component.

[0014] Optionally, the earphone case includes a flexible circuit board, through which the first battery and the second battery are electrically connected;

[0015] The flexible circuit board extends from the first cover to the second cover through the hinge joint between the first cover and the second cover.

[0016] Optionally, a first magnetic element is provided on the first cover, and a second magnetic element is provided on the second cover;

[0017] When the earphone compartment is closed, the first and second magnetic components attract each other.

[0018] Optionally, the receiving space has an opening communicating with the outside of the headphone compartment, so that the headphone body inside the receiving space is exposed to the outside of the headphone compartment through the opening.

[0019] Optionally, the first cover includes a first inner shell and a first outer shell, and the second cover includes a second inner shell and a second outer shell;

[0020] With the earphone compartment closed, the first outer shell and the second outer shell are exposed outside the earphone compartment. The first inner shell and the second inner shell are arranged opposite each other and form an accommodating space. There is an opening between the first inner shell and the second inner shell.

[0021] This application also provides an earphone, the earphone comprising:

[0022] The earphone itself;

[0023] The aforementioned earphone case; the earphones themselves are housed within the earphone case's storage space.

[0024] Optionally, the earphone body includes an earbud and an earphone stem connected to each other, the earbud being located within a receiving space, and the earphone stem being exposed outside the earphone compartment through an opening in the receiving space.

[0025] Optionally, when the earphone compartment is closed, both the first and second sides of the battery compartment have recesses, and the first and second sides are opposite sides of the earphone compartment.

[0026] The headphone body includes a first earphone and a second earphone. The earphone stem of the first earphone is located in the concave part on the first side, and the earphone stem of the second earphone is located in the concave part on the second side.

[0027] The beneficial effects of the earphones and earphone case provided in this application are as follows: Compared with the prior art, the earphone case in the embodiment of this application includes a first cover and a second cover, which can be closed to each other, and batteries are provided in both the first cover and the second cover. The two batteries are electrically connected to form an energy storage component, which makes fuller use of the internal space of the earphone case, significantly improves the overall battery capacity, and provides a longer battery life to meet the user's long-term use needs. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the headphones in an embodiment of this application;

[0030] Figure 2 This is a schematic diagram showing the earphone compartment being opened in an embodiment of this application;

[0031] Figure 3 This is a schematic diagram of the side of the earphone in an embodiment of this application;

[0032] Figure 4 This is a schematic diagram of the front side of the earphone in an embodiment of this application;

[0033] Figure 5 This is a schematic diagram of the charging and discharging interface in an embodiment of this application;

[0034] Figure 6 This is a schematic diagram of the earphone compartment in an embodiment of this application;

[0035] The reference numerals in the figures are as follows: First cover 11; First outer shell 111; First inner shell 112; Second cover 12; Second outer shell 121; Middle frame 122; Second inner shell 123; Accommodation space 13; Opening 14; Earphone body 2; Earplug 201; Earphone stem 202; First earphone 21; Second earphone 22; First battery 31; Second battery 32; Flexible circuit board 33; Main board 4; Charging / discharging interface 5; First magnetic 61; Second magnetic 62. Detailed Implementation

[0036] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0037] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0038] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0039] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0040] The earphone case provided in the embodiments of this application will now be described. Please refer to... Figure 1 , Figure 2 and Figure 3 In some embodiments of this application, the earphone compartment includes:

[0041] First cover 11;

[0042] Second cover 12; First cover 11 and second cover 12 are hinged together, and the first cover 11 and second cover 12 can cover each other to form a receiving space 13 for accommodating the headphone body 2;

[0043] First battery 31; First battery 31 is disposed inside first cover 11;

[0044] Second battery 32; Second battery 32 is disposed inside second cover 12;

[0045] The first battery 31 and the second battery 32 are electrically connected to form the energy storage component of the earphone compartment.

[0046] In this embodiment, the earphone compartment includes a first cover 11 and a second cover 12. Both are called cover-type because they are more similar in size to ordinary compartments and covers, and both need to accommodate batteries. Of course, one of them may house electrical components such as a motherboard 4, while the other may not.

[0047] The first cover 11 can generally be considered the upper cover, and the second cover 12 can generally be considered the lower cover. In some other embodiments, the positional relationship between the first cover 11 and the second cover 12 may be changed. The first cover 11 and the second cover 12 are hinged together. A pivot hinge or a flexible hinge may be used. The first cover 11 and the second cover 12 can close together to form a receiving space 13, providing a safe storage environment for the earphone body 2 and effectively protecting the earphone from external impacts, scratches, and dust contamination. This hinged design makes the earphone case easy to open and close. Since the first cover 11 and the second cover 12 are closer in size, either the first cover 11 or the second cover 12 can be opened, allowing users to easily take out and put in the earphones. At the same time, the double-cover design makes the earphone case look more unique, and when carried, this structure is relatively compact and does not take up too much space, making it convenient for users to put it in their pockets, bags, etc., and has good portability.

[0048] A first battery 31 is housed within the first cover 11, and a second battery 32 is housed within the second cover 12. The internal space of the covers is fully utilized. The two batteries are electrically connected to form an energy storage component, significantly increasing the battery capacity of the earphone case. This means the earphones can receive more power, thereby extending usage time, reducing charging frequency, and meeting users' daily battery life needs. For example, even during long periods of travel or when timely charging is unavailable, the earphones can maintain a longer working state. Specifically, the first battery 31 and the second battery 32 can be connected in series, parallel, or other connection methods as needed. With a reasonable volume compared to existing products, the total battery capacity of the earphone case in this embodiment can reach 1500 mAh.

[0049] The first battery 31 and the second battery 32 are respectively disposed within the first cover 11 and the second cover 12. This distribution optimizes the internal space layout of the earphone case. It avoids the space congestion caused by concentrating all batteries in one location, making the earphone case structure more rational. It also helps to balance the weight of the earphone case and improve the grip. To some extent, the dual-battery design has a certain degree of redundancy. If one battery fails or is damaged, the other battery can still provide some power to the earphones, maintaining the basic functions of the earphone case. This gives users time to repair or replace the battery, improving the reliability and stability of the entire earphone case system.

[0050] Please see Figure 1 and Figure 3 In some embodiments of this application, the first cover 11 and the second cover 12 are at least partially symmetrical to each other. The design of the first cover 11 and the second cover 12 being at least partially symmetrical to each other brings significant improvements in both aesthetics and function.

[0051] If the first cover 11 and the second cover 12 are completely symmetrical, the regular mirror structure strictly follows the laws of geometric aesthetics and is relatively more aesthetically pleasing. If they are partially symmetrical, then some differences can be added to the first cover 11 and the second cover 12. For example, the motherboard 4 can be set only in the second cover 12, while the motherboard 4 is not set in the first cover 11, so that the second cover 12 is partially symmetrical with the first cover 11, and an additional asymmetrical structure is added for the placement of the motherboard 4.

[0052] Please see Figure 1 , Figure 3 and Figure 4 In some embodiments of this application, the first cover 11 includes a first outer shell 111, and the second cover 12 includes a middle frame 122 and a second outer shell 121. The middle frame 122 is connected to the side of the second outer shell 121 near the first cover 11. When the earphone compartment is closed, the first outer shell 111, the middle frame 122, and the second outer shell 121 are exposed outside the earphone compartment, and the first outer shell 111 and the second outer shell 121 are symmetrically arranged on both sides of the middle frame 122.

[0053] The first outer shell 111 is the exposed part of the first cover 11, and the second outer shell 121 is the exposed part of the second cover 12. Both not only bear the important responsibility of protecting the internal components such as the battery, but also directly affect the user's visual and tactile experience. The middle frame 122 is part of the second cover 12. The existence of the middle frame 122 makes the first cover 11 and the second cover 12 symmetrical only in terms of the first outer shell 111 and the second outer shell 121, but also shows a symmetrical aesthetic and harmony. The motherboard 4 and other electronic components can be arranged inside the middle frame 122, thus ensuring both symmetrical aesthetics and facilitating the internal layout of the battery compartment.

[0054] The first outer shell 111 and the second outer shell 121 serve as the visible parts of the first cover 11 and the second cover 12, respectively, and are the visual carriers and interactive interfaces directly facing the user from the earphone compartment. In terms of protection, both are made of high-strength engineering materials or alloy materials, which can withstand the impact and scratches in daily use, and provide reliable physical protection for the core components such as the first battery 31 and the second battery 32 inside.

[0055] The mid-frame 122, as an important component of the second cover 12, plays a unique role in both structure and function. From an aesthetic perspective, it connects the symmetrically distributed first outer shell 111 and second outer shell 121, extending the element of local symmetry to the overall design, resulting in a harmonious and unified visual effect when the earphone case is closed. The mid-frame 122 can employ materials or surface treatments that differ from the outer shell; for example, a metal mid-frame 122 paired with a plastic outer shell. This contrast in material texture enhances the symmetrical aesthetic while increasing the product's sense of sophistication and refinement.

[0056] In terms of functional layout, the addition of the middle frame 122 significantly expands the internal space of the second cover 12. The internal space of the second cover 12 is jointly formed by the second outer shell 121 and the middle frame 122, effectively increasing the volume compared to a single outer shell structure. This design optimization provides greater flexibility for the layout of internal components, allowing the motherboard 4 and other electrical components to be rationally placed inside the second cover 12. This layout avoids the potential damage to the appearance caused by arranging components in a symmetrical outer shell, ensuring the integrity of the overall symmetrical aesthetics, and facilitates the planning and connection of wiring, making the internal layout of the battery compartment more orderly and organized, reducing wire tangling and signal interference, and improving the stability and reliability of the electrical system. In addition, the centralized component layout also helps to simplify the production and assembly process, reduce manufacturing difficulty, and facilitate later maintenance and repair, ultimately achieving an organic combination of aesthetics and practicality.

[0057] Please see Figure 5 In some embodiments of this application, the earphone compartment further includes a charging / discharging interface 5, which is electrically connected to an energy storage component. A charging circuit and a reverse charging circuit are provided between the charging / discharging interface 5 and the energy storage component.

[0058] The charging / discharging port 5 serves as a bridge for power interaction between the earphone compartment and external devices. It typically uses a universal Type-C interface, but other USB interfaces can also be used.

[0059] The charging circuit is the core module ensuring efficient charging of the earphone's energy storage components. It consists of a power management chip, a rectifier circuit, and a filter circuit. The power management chip monitors and regulates the charging process, intelligently adjusting the charging current and voltage based on the charge status of the first battery 31 and the second battery 32. This allows for switching between different stages, such as trickle charging, constant current charging, and constant voltage charging, effectively extending battery life while ensuring rapid charging. The rectifier circuit converts the externally input AC power into DC power, while the filter circuit purifies the current, removing noise and interference to ensure a clean and stable current input to the energy storage components.

[0060] The reverse charging circuit provides the earphone case with emergency power. This circuit may include a boost converter, a control module, and a protection circuit. The boost converter can raise the low voltage of the energy storage component to a standard voltage suitable for charging external devices, such as 5V or 9V, meeting the charging needs of devices such as mobile phones and smart bracelets. The control module monitors the output current and voltage in real time and dynamically adjusts the output power according to the power demand of the device being charged, avoiding overload or insufficient power. The protection circuit provides comprehensive safety protection during reverse charging. In the event of overvoltage, overcurrent, short circuit, or abnormal temperature, it can quickly cut off the circuit to prevent damage to the earphone case battery and the device being charged.

[0061] The energy storage component consisting of the first battery 31 and the second battery 32 is the energy foundation for achieving the above functions. The first battery 31 is disposed inside the first cover 11, and the second battery 32 is disposed inside the second cover 12, and the two are electrically connected to form a whole. They typically use high-energy-density lithium-ion batteries or lithium polymer batteries, which are characterized by small size, light weight, and large capacity. The dual-battery layout not only effectively utilizes the internal space of the earphone compartment, significantly increasing the battery capacity, but also provides ample power support for the reverse charging function. During reverse charging, the two batteries work together to ensure stable power output to meet the power needs of external devices, enabling the earphone compartment not only to efficiently charge the earphones, but also to function as an emergency power bank, providing power support for other electronic devices in critical moments, greatly expanding the product's usage scenarios and application value.

[0062] Please see Figure 3 In some embodiments of this application, the earphone compartment includes a flexible circuit board 33, and the first battery 31 and the second battery 32 are electrically connected through the flexible circuit board 33. The flexible circuit board 33 extends from inside the first cover 11 to inside the second cover 12 through the hinge of the first cover 11 and the second cover 12.

[0063] The flexible printed circuit board (FPC) 33 serves as the dual-battery connection circuit for the earphone compartment. From a physical perspective, the FPC 33, with its thin and flexible characteristics, perfectly fits the complex space at the hinge between the first cover 11 and the second cover 12 of the earphone compartment. Compared to traditional rigid circuit boards, it can freely extend within limited gaps, eliminating the need for extensive additional wiring space and effectively saving valuable internal space, thus providing greater possibilities for the layout of other components. During frequent opening and closing of the earphone compartment, the FPC 33 can withstand multiple bends without easily breaking. Its substrate is typically made of high-toughness materials such as polyimide, and combined with special circuit etching and protection processes, it ensures good electrical performance even after tens of thousands of bending cycles, greatly improving connection reliability and lifespan.

[0064] In terms of electrical connection, the flexible circuit board 33 bears the crucial responsibility of power transmission and signal interaction between the first battery 31 and the second battery 32. Through circuit design, the flexible circuit board 33 can realize series or parallel connection of the two batteries, flexibly adjusting the power supply mode according to the power demand of the earphone compartment. For example, during charging, the flexible circuit board 33 can evenly distribute external power to the two batteries, avoiding overcharging of a single battery or uneven charging; while when powering the earphones, it can efficiently integrate and output the power of the two batteries. At the same time, the flexible circuit board 33 can also integrate necessary circuit protection components, such as overcurrent protection and short circuit protection modules, to monitor the working status of the batteries in real time, and immediately cut off the circuit in case of abnormality, providing safety protection for the batteries and the earphone compartment as a whole. In addition, the use of the flexible circuit board 33 simplifies the assembly process, reduces the number of soldering points and connecting wires, reduces the risk of failure due to poor contact, and makes the production and maintenance of the earphone compartment more convenient and efficient.

[0065] Please see Figure 2 In some embodiments of this application, a first magnetic 61 is provided on the first cover 11, and a second magnetic 62 is provided on the second cover 12; when the earphone compartment is closed, the first magnetic 61 and the second magnetic 62 attract each other.

[0066] The design of the first magnetic closure 61 and the second magnetic closure 62 provides both stability and convenience when the earphone case is closed. From a structural stability perspective, when the earphone case is closed, the magnetic force generated by the mutual attraction of the first magnetic closure 61 and the second magnetic closure 62 effectively counteracts external forces caused by shaking or collisions, preventing accidental opening of the cover and ensuring the safety of the earphone body 2 and internal components such as the battery. Compared to traditional snap-on structures, this magnetic design reduces mechanical wear, avoids breakage or loosening of the snaps due to frequent opening and closing, and significantly improves the lifespan of the earphone case.

[0067] The first magnetic chuck 61 and the second magnetic chuck 62 can be made of permanent magnet materials such as neodymium iron boron permanent magnets or ferrite permanent magnets, or they can be made of magnetically conductive materials such as low-carbon steel or iron-nickel alloys, but they need to be used in combination. For example, the first magnetic chuck 61 can be made of neodymium iron boron permanent magnets and the second magnetic chuck 62 can be made of low-carbon steel; or the first magnetic chuck 61 can be made of ferrite and the second magnetic chuck 62 can be made of low-carbon steel.

[0068] Please see Figure 1 and Figure 6 In some embodiments of this application, the receiving space 13 has an opening 14 communicating with the outside of the earphone compartment, so that the earphone body 2 inside the receiving space 13 is exposed to the outside of the earphone compartment through the opening 14.

[0069] The opening 14 of the accommodating space 13 exposes the two parts of the earphone body to the outside of the earphone case. From an aesthetic point of view, the shape, color and material of the earphone can be directly presented through the opening 14, forming a visual echo or contrast with the earphone case shell. For example, the metallic luster of the earphone and the matte texture of the case complement each other, breaking the monotony of the closed design, creating a rich product appearance, and enhancing the overall design aesthetics and recognizability.

[0070] In terms of functional expansion, the exposed portion of the earphone body 2 provides a new platform for interactive design. Indicator lights or display modules can be placed in this area to intuitively display information such as earphone battery level and connection status, allowing users to quickly obtain key status information without opening the case.

[0071] In terms of structural design, the exposed earphone portion reduces the redundant storage space required inside the charging case, eliminating the need for excessive enclosed storage area for the earphones and effectively reducing the overall size of the charging case. The more compact size makes the charging case easier to carry, easily fitting into a pocket or small bag, aligning with the trend towards portability. Simultaneously, the optimized size also helps reduce the use of raw materials, improving product practicality while balancing cost control and space efficiency.

[0072] Please see Figure 1 , Figure 2 and Figure 6 In some embodiments of this application, the first cover 11 includes a first inner shell 112 and a first outer shell 111, and the second cover 12 includes a second inner shell 123 and a second outer shell 121. When the earphone compartment is closed, the first outer shell 111 and the second outer shell 121 are exposed outside the earphone compartment. The first inner shell 112 and the second inner shell 123 are arranged opposite to each other and form an accommodating space 13. An opening 14 is formed between the first inner shell 112 and the second inner shell 123.

[0073] With the earphone case closed, the first outer shell 111 and the second outer shell 121, as the exposed main body, directly determine the overall style of the earphone case. The first inner shell 112 and the second inner shell 123 are arranged opposite each other, together forming a space to accommodate the earphones, and their outlines are customized according to the geometry of the earphone body 2. The gap between the first inner shell 112 and the second inner shell 123 forms an opening 14, which allows the earphone body 2 to be partially exposed outside the earphone case.

[0074] When a user needs to access the earphone body 2, they simply need to open the first cover 11 and the second cover 12, exposing a larger area of ​​the previously partially exposed earphone. Compared to accessing the earphone only through the opening 14, the operating space after opening the cover is greatly expanded, allowing users to hold the earphone more comfortably without worrying about slipping or accidental touches due to limited gripping space.

[0075] In addition, the first outer shell 111 and the first inner shell 112 form a first internal space, and the first battery 31 is disposed in the first space. The second outer shell 121 and the second inner shell 123 form a second internal space, and the second battery 32 is disposed in the second space.

[0076] Based on the earphone case of the above embodiments, this application also provides an earphone, please refer to... Figure 1 and Figure 2 The earphone includes an earphone body 2 and an earphone compartment as described in the above embodiments; the earphone body 2 is disposed within the receiving space 13 of the earphone compartment. Since a first battery 31 is disposed within the first cover 11 of the earphone compartment and a second battery 32 is disposed within the second cover 12, the internal space of the covers is fully utilized. The two batteries are electrically connected to form an energy storage component, significantly increasing the battery capacity of the earphone compartment, thereby significantly improving the earphone's battery life, reducing the number of charging cycles, and enhancing the user experience.

[0077] Please see Figure 1 , Figure 2 and Figure 6 In some embodiments of this application, the headphone body 2 includes an earbud 201 and an earphone stem 202 connected to each other. The earbud 201 is located in the receiving space 13, and the earphone stem 202 is exposed to the outside of the headphone compartment from the opening 14 of the receiving space 13.

[0078] The opening 14 of the storage space 13 exposes the earphone body 2 to the outside of the charging case. Aesthetically, the shape, color, and material of the earphones can be directly presented through the opening 14, creating a visual echo or contrast with the charging case shell. For example, the metallic sheen of the earphones complements the matte texture of the charging case, breaking the monotony of the closed design and creating a richly layered product appearance, enhancing the overall design aesthetics and recognizability. In terms of functional expansion, the exposed part of the earphone body 2 provides a new carrier for interactive design. Indicator lights or display modules can be set in this area to intuitively display information such as earphone battery level and connection status, allowing users to quickly obtain key statuses without opening the case. In terms of structural design, the exposed earphone part reduces the redundant storage space required inside the charging case, eliminating the need for excessive enclosed storage area for the earphones, thus effectively reducing the size of the charging case. The more compact size makes the charging case more portable, easily fitting into a pocket or small bag, aligning with the trend of portability; at the same time, the optimized size also helps reduce the use of raw materials, improving product practicality while taking into account cost control and space efficiency.

[0079] In this embodiment, the earbud 201 is located within the receiving space 13, and the earphone stem 202 is exposed outside the earphone compartment from the opening 14 of the receiving space 13.

[0080] As the core component for headphone sound playback, the earbud 201 has an extremely delicate and fragile sound playback port that is easily blocked by dust and foreign objects, which can affect sound quality and even cause sound malfunctions. Placing the earbud 201 within the enclosed storage space 13 effectively isolates it from the external environment. The headphone stem 202, with its slender rod shape, provides an ideal platform for functional integration and user interaction. Its exposed design breaks the limitations of traditional enclosed storage. The headphone stem 202 can also embed a miniature LED indicator, or display information such as battery level icons and connection status indicators through laser engraving, ink printing, or other processes, allowing users to quickly grasp the headphone's operating status and enhancing ease of use and a sense of technology.

[0081] Typically, the earbud 201 is relatively large and irregularly shaped to accommodate core components such as the sound unit and battery; while the headphone stem 202 is relatively slender and has a regular rod shape. The earbud 201 is securely placed in the contoured groove of the receiving space 13. The larger volume of the earbud 201 and the wide bottom contour form a natural limiting structure. Even if the width of the opening 14 is slightly larger than the size of the headphone stem 202, the earbud 201 can still be firmly locked in the groove under the action of gravity, preventing it from sliding out.

[0082] Please see Figure 4 In some embodiments of this application, when the earphone compartment is closed, both the first and second sides of the battery compartment have recesses, and the first and second sides are opposite sides of the earphone compartment; the earphone body 2 includes a first earphone 21 and a second earphone 22, the earphone stem 202 of the first earphone 21 is located in the recess on the first side, and the earphone stem 202 of the second earphone 22 is located in the recess on the second side.

[0083] With the charging case closed, the concave design on the first and second sides, in conjunction with the layout of the earphone body 2, offers significant advantages in terms of reducing size and protecting the earphone stem 202. From a space utilization perspective, the concave portion conforms to the slender shape of the earphone stem 202, changing the traditional square shape of the charging case. This allows the charging case to tightly enclose the earphones, avoiding wasted space caused by excessive allowances. It effectively reduces the lateral dimensions of the charging case, making it thinner and more compact, and easier for users to carry in their pockets or bags.

[0084] From a protective perspective, the recessed area provides a dedicated protective space for the exposed earphone stem 202, reducing direct impact from external forces. The recessed design ensures the earphone stem 202 doesn't protrude beyond the overall outline of the earphone case, lowering the risk of scratches and bumps during daily use. This effectively protects key components such as the touch controls and indicator lights on the earphone stem 202, extending the earphone's lifespan. This design satisfies the interactive convenience of the exposed earphone stem 202 while simultaneously addressing the protection of exposed components through structural optimization, achieving a balance between functionality and protection.

[0085] In such Figure 4 In the embodiment shown, the recess is formed by the sides of the first cover 11 and the second cover 12. In particular, when the opening 14 is formed by the gap between the first inner shell 112 of the first cover 11 and the second inner shell 123 of the second cover 12, the earphone stem 202 can be accurately located in the recess.

[0086] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An earphone case, characterized in that, The earphone compartment includes: First cover; The second cover; the first cover and the second cover are hinged together, and the first cover and the second cover can close together to form a receiving space for accommodating the headphone body; First battery; the first battery is disposed within the first cover body; The second battery; the second battery is disposed within the second cover body; The first battery and the second battery are electrically connected to form the energy storage component of the earphone compartment.

2. The earphone case as described in claim 1, characterized in that, The first cover and the second cover are at least partially symmetrical to each other.

3. The earphone case as described in claim 2, characterized in that, The first cover includes a first outer shell, and the second cover includes a middle frame and a second outer shell, wherein the middle frame is connected to the second outer shell on the side near the first cover; When the earphone compartment is closed, the first outer shell, the middle frame, and the second outer shell are exposed outside the earphone compartment, and the first outer shell and the second outer shell are symmetrically arranged on both sides of the middle frame.

4. The earphone case as described in claim 1, characterized in that, The earphone compartment also includes a charging and discharging interface, which is electrically connected to the energy storage component. A charging circuit and a reverse charging circuit are provided between the charging and discharging interface and the energy storage component.

5. The earphone case as described in claim 1, characterized in that, The earphone compartment includes a flexible circuit board, and the first battery and the second battery are electrically connected through the flexible circuit board. The flexible circuit board extends from the first cover body into the second cover body through the hinge joint between the first cover body and the second cover body.

6. The earphone case as described in claim 1, characterized in that, The first cover is provided with a first magnetic attraction element, and the second cover is provided with a second magnetic attraction element; When the earphone compartment is closed, the first magnetic component and the second magnetic component attract each other.

7. The earphone case as described in claim 1, characterized in that, The receiving space has an opening communicating with the outside of the earphone compartment, so that the earphone body inside the receiving space is exposed to the outside of the earphone compartment through the opening.

8. The earphone case as described in claim 7, characterized in that, The first cover includes a first inner shell and a first outer shell, and the second cover includes a second inner shell and a second outer shell; When the earphone compartment is closed, the first outer shell and the second outer shell are exposed outside the earphone compartment. The first inner shell and the second inner shell are arranged opposite to each other and form the receiving space. There is a gap between the first inner shell and the second inner shell to form the opening.

9. An earphone, characterized in that, The headphones include: The earphone itself; The earphone case according to any one of claims 1-7; the earphone body is disposed within the receiving space of the earphone case.

10. The headphones as described in claim 9, characterized in that, The earphone body includes an earbud and an earphone stem connected to each other, the earbud being located within the receiving space, and the earphone stem being exposed outside the earphone compartment from an opening in the receiving space.

11. The headphones as claimed in claim 10, characterized in that, When the earphone compartment is closed, both the first and second sides of the battery compartment have recesses, and the first and second sides are opposite sides of the earphone compartment. The earphone body includes a first earphone and a second earphone, wherein the earphone stem of the first earphone is located in the concave portion on the first side, and the earphone stem of the second earphone is located in the concave portion on the second side.

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