Earphone charging box and earphone system
By incorporating a sliding mechanism and locking element into the earphone charging case, the problem of requiring two hands to operate in a flip-top design has been solved, enabling one-handed opening and closing, improving ease of use and safety, and extending product lifespan.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-14
- Publication Date
- 2026-03-31
AI Technical Summary
Existing flip-top earphone charging cases require both hands to operate, which is inconvenient.
A first sliding mechanism and a second sliding mechanism are provided between the body and the top cover of the earphone charging case. By cooperating with the locking and unlocking parts, the top cover can be opened and closed with one hand, and operation feedback is provided through the feedback component.
It enables convenient one-handed operation, enhances structural stability and durability, optimizes space utilization, improves the intuitiveness and safety of operation, reduces wear and tear, and prevents accidental opening.
Smart Images

Figure CN224068775U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wireless earphone technology, and in particular to an earphone charging case and earphone system. Background Technology
[0002] Wireless headphones are headphones that do not require a physical cable to connect to an audio source device (such as a mobile phone, computer, or tablet). They transmit audio signals via wireless communication technologies such as Bluetooth, Wi-Fi, or other proprietary protocols. These headphones offer users greater freedom of movement and convenience, making them especially suitable for sports, commuting, or any situation where users do not want to be tied down by cables.
[0003] Many wireless earbuds typically come with a portable charging case. When the earbuds are low on battery, they can be placed in this charging case to charge. Most earbud charging cases on the market use a flip-top design, meaning the lid and the case body are connected in a way that allows them to open and close. The lid is secured to the case body with a snap or magnet. Opening the lid requires both hands.
[0004] However, existing flip-top charging cases require both hands to open the lid, making them very inconvenient to use. Summary of the Invention
[0005] This utility model provides an earphone charging case that solves the technical problem that existing flip-top charging cases require two hands to operate when opening.
[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0007] An earphone charging case includes a case body and a top cover. The case body has a first sliding mechanism on opposite sides, and the top cover has a second sliding mechanism that slides in conjunction with the first sliding mechanism. The case body has an opening locking member and a closing locking member on opposite sides along the sliding direction of the first sliding mechanism. The top cover has a locking member that engages with the opening and closing locking members. When the locking member engages with the opening locking member, the top cover is in an open state; when the locking member engages with the closing locking member, the top cover is in a closed state. The sliding of the first and second sliding mechanisms relative to each other allows the top cover to switch between the open and closed states.
[0008] Furthermore, the first sliding mechanism includes a groove formed along the length of the box body, and the second sliding mechanism includes a slider formed along the length of the top cover; or, the first sliding mechanism includes a slider formed along the length of the box body, and the second sliding mechanism includes a groove formed along the length of the top cover.
[0009] Furthermore, the first sliding mechanism includes two sliding grooves arranged along the width direction of the box body, with the openings of the two sliding grooves facing away from each other; the second sliding mechanism includes a slider that slides in cooperation with the sliding grooves.
[0010] Furthermore, a first feedback element is provided in the slide groove, and a second feedback element is provided in the slider to contact and cooperate with the first feedback element. When the slider slides back and forth along the slide groove, the first feedback element and the second feedback element move relative to each other and emit feedback sound.
[0011] Furthermore, the cross-section of the contact surface between the first feedback element and the second feedback element is wavy, and the second feedback element and the first feedback element are elastically abutted together.
[0012] Furthermore, the second feedback element includes a first crest portion and a second crest portion that respectively contact and cooperate with the first feedback element. The first crest portion is in concave-convex cooperation with the trough of the contact surface of the first feedback element, and the second crest portion is in abutting cooperation with the crest of the contact surface of the first feedback element.
[0013] Furthermore, the upper cover is also provided with an auxiliary locking component, which engages with the opening locking component when the upper locking component engages with the closing locking component.
[0014] Furthermore, the opening and closing locking components are first magnetic components, and the locking component is a second magnetic component, with the opening and closing locking components magnetically engaging with the locking component respectively.
[0015] Furthermore, two sets of the opening and closing locking components are provided, and they are distributed on both sides of the width direction of the first sliding mechanism.
[0016] This embodiment also provides an earphone system, which includes the earphone charging case and earphone body described above.
[0017] The beneficial effects of this utility model are as follows: The earphone charging case of this utility model achieves convenient one-handed operation by setting a first sliding mechanism and a second sliding mechanism between the case body and the top cover, solving the inconvenience of traditional flip-top designs that require two-handed operation. At the same time, it enhances the stability and durability of the structure and reduces wear caused by frequent opening and closing. In addition, the innovative opening and closing locking parts not only improve the intuitiveness and smoothness of operation, but also optimize the utilization of internal space, making the product more compact and practical. The reliable locking mechanism effectively prevents accidental opening and ensures the safety of the earphones during carrying, thus bringing users a more convenient, reliable and novel user experience. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, 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 utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the headphone system of this utility model in the off state;
[0020] Figure 2 This is a schematic diagram showing the open state of the headphone system of this utility model;
[0021] Figure 3 for Figure 2 Schematic diagram of the upper and middle covers;
[0022] Figure 4 for Figure 1 A side view of the headphone system;
[0023] Figure 5 for Figure 4 Cross-sectional view of AA in the middle;
[0024] Figure 6 for Figure 5 Enlarged view of point B in the middle.
[0025] Explanation of reference numerals in the attached drawings: 100, earphone charging case; 101, case body; 102, top cover; 110, first sliding mechanism; 111, sliding groove; 112, first feedback element; 120, second sliding mechanism; 121, slider; 122, second feedback element; 1221, first peak; 1222, second peak; 130, opening and closing locking element; 140, closing and closing locking element; 150, locking element; 160, auxiliary locking element; 200, earphone body; Detailed Implementation
[0026] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention.
[0027] Example
[0028] like Figure 1 and Figure 2 As shown, the headphone system provided by this utility model includes a headphone charging case 100 and a headphone body 200. The headphone charging case 100 is provided with a receiving slot for accommodating the headphone body 200. The headphone charging case 100 is mainly used to store the headphone body 200 and charge the headphone body 200. The headphone body 200 can be an open-back Bluetooth headphone.
[0029] like Figures 1 to 5 As shown, the earphone charging case 100 includes a case body 101 and a top cover 102. The case body 101 has a first sliding mechanism 110 on opposite sides, and the top cover 102 has a second sliding mechanism 120 that slides in cooperation with the first sliding mechanism 110. The case body 101 has an opening locking member 130 and a closing locking member 140 on opposite sides along the sliding direction of the first sliding mechanism 110. The top cover 102 has a locking member 150 that cooperates with the opening locking member 130 and the closing locking member 140. When the locking member 150 cooperates with the opening locking member 130, the top cover 102 is in an open state; when the locking member 150 cooperates with the closing locking member 140, the top cover 102 is in a closed state. The sliding of the first sliding mechanism 110 and the second sliding mechanism 120 relative to each other allows the top cover 102 to switch between an open state and a closed state. Unlike traditional flip-top designs, this embodiment utilizes a first sliding mechanism 110 and a second sliding mechanism 120, allowing users to easily open and close the top cover 102 with one hand. This significantly improves ease of use and user experience, especially when the user's other hand is occupied or inconvenient to use both hands (such as during exercise or when carrying items). Using a sliding mechanism instead of a snap-fit or magnet as the primary opening and closing method not only reduces wear caused by frequent opening and closing but also provides a more robust closing mechanism, extending the product's lifespan. By providing an opening lock 130 and a closing lock 140 on both sides of the case 101, along with corresponding locking components 150, a smooth and intuitive opening and closing process for the top cover 102 is achieved. This design not only increases the product's practicality but also provides users with a novel operating experience. The sliding mechanism design allows for more flexible use of the charging case's internal space, potentially offering more internal space for earphones or other accessories compared to traditional flip-top designs, while maintaining a compact external size. Thanks to a specially designed opening and closing locking mechanism, accidental opening is effectively prevented, ensuring the safety and stability of the earphones during transport and avoiding the risk of them falling out and being lost due to accidental opening. In summary, the earphone charging case 100 of this embodiment not only solves the inconveniences of existing technologies but also improves the overall performance of the product through innovative design, providing users with a more convenient, reliable, and attractive option.
[0030] In this embodiment, combined with Figures 2 to 5As shown, the first sliding mechanism 110 includes a groove 111 extending along the length of the housing 101, and the second sliding mechanism 120 includes a slider 121 extending along the length of the upper cover 102. By creating the groove 111 along the length of the housing 101 and placing the slider 121 at a corresponding position on the upper cover 102, precise alignment and smooth sliding between the upper cover 102 and the housing 101 are achieved. This structural optimization brings several benefits: First, it ensures the stability and smoothness of the upper cover 102 when opening and closing, avoiding operational difficulties or jamming caused by misalignment; second, the sliding design along the length allows for easy opening and closing with one hand, greatly improving ease of use, especially suitable for scenarios where users need to quickly access their earphones; furthermore, the precise cooperation between the groove 111 and the slider 121 not only enhances the product's durability and reduces wear during long-term use, but also provides a simple and aesthetically pleasing design, improving the overall user experience. Through this design, the earphone charging case 100 maintains practicality while increasing user satisfaction. In other embodiments, the first sliding mechanism 110 includes a slider 121 disposed along the length direction of the box body 101, and the second sliding mechanism 120 includes a groove 111 formed along the length direction of the upper cover 102.
[0031] like Figures 2 to 5 As shown, the first sliding mechanism 110 includes two sliding grooves 111 arranged along the width direction of the housing 101, with the openings of the two sliding grooves 111 facing away from each other; the second sliding mechanism 120 includes a slider 121 that slides and engages with the sliding grooves 111. More specifically, the upper cover 102 has a U-shaped cross-section, and the slider 121 is disposed on the inner side of the upper cover 102 and is arranged opposite to it, engaging with the sliding grooves 111 with their openings facing away from each other. When the slider 121 engages with the sliding grooves 111, the upper cover 102 is less likely to detach from the housing 101, which helps to enhance the stability in the closed state, prevents the upper cover 102 from opening accidentally, and provides better protection for the earphones. The design of the double sliding grooves 111 increases the stability and guidance of the upper cover 102 when opening and closing, ensuring that the upper cover 102 can move precisely along a preset path, effectively avoiding the offset or tilting problems that may be caused by sliding on one side, thereby improving the reliability and smoothness of the overall operation. Furthermore, this design simplifies the manufacturing and assembly process, as the configuration of the groove 111 and slider 121 allows for easier and more precise alignment and installation, while also improving product durability and reducing wear and tear that may occur during long-term use. In summary, this innovative sliding mechanism not only optimizes the user experience, making one-handed operation more convenient and stable, but also enhances the overall quality and reliability of the product.
[0032] like Figures 2 to 6As shown, a first feedback element 112 is provided within the slide groove 111, and a second feedback element 122 is provided on the slider 121 to contact and engage with the first feedback element 112. When the slider 121 slides back and forth along the slide groove 111, the first feedback element 112 and the second feedback element 122 move relative to each other and emit a feedback sound. Specifically, two slide grooves 111 are provided in the width direction of the housing 101, with the opening of each slide groove 111 facing away from each other. The first feedback element 112 is embedded in the slide groove 111 along its length direction. These first feedback elements 112 can be elastic material strips with a specific shape (such as wavy or serrated), such as rubber or plastic, and are installed at the center of the bottom of the slide groove 111 to ensure that they can effectively contact the second feedback element 122 on the slider 121. Slider elements 121 are provided on both sides of the top cover 102, and these slider elements 121 can slide freely within the slide groove 111. Each slider 121 is fixed with a second feedback element 122, which is typically made of a rigid material, such as metal or hard plastic, and its surface is designed to interact with the first feedback element 112. For example, if the first feedback element 112 is wavy, the second feedback element 122 may be a small wheel with multiple protrusions or a curved structure, so that it contacts the wavy first feedback element 112 and produces a sound during sliding. When the user pushes the top cover 102 along the slide groove 111 with one hand, the slider 121 begins to move within the slide groove 111. As the slider 121 moves, the second feedback element 122 rolls or slides along the first feedback element 112. Due to the difference in surface characteristics (such as wavy and curved), their relative movement causes periodic slight collisions or friction, producing a clearly audible "click" sound or other form of feedback sound. This sound not only lets the user know that the slider 121 is moving smoothly, but also allows the user to determine whether the top cover 102 has been fully opened or closed by changes in sound (such as changes in frequency or volume).
[0033] Preferably, the cross-section of the contact surface between the first feedback element 112 and the second feedback element 122 is wavy, and the second feedback element 122 elastically abuts against the first feedback element 112. The second feedback element 122 includes a first crest portion 1221 and a second crest portion 1222 that respectively contact and engage with the first feedback element 112. The first crest portion 1221 engages with the trough of the contact surface of the first feedback element 112, and the second crest portion 1222 abuts against the crest of the contact surface of the first feedback element 112. The first feedback element 112 is embedded inside a groove 111 provided in the width direction of the housing 101, along the length direction of the groove 111. This first feedback element 112 has a wavy cross-section, meaning its contact surface exhibits a continuous crest and trough shape. This wavy design can be made of an elastic material (such as rubber or silicone) to ensure effective contact with the second feedback element 122 and to restore its original shape under pressure. Slider 121 is mounted on both sides of the upper cover 102 and can slide freely within the groove 111. Each slider 121 is fixed with a second feedback element 122, which is made of a rigid material (such as metal or hard plastic) and designed with a specific shape to adapt to the wavy surface of the first feedback element 112. Specifically, the second feedback element 122 includes two main parts: a first crest portion 1221 and a second crest portion 1222. The first crest portion 1221 is designed to precisely insert into the trough of the first feedback element 112, forming a concave-convex fit; the second crest portion 1222 is designed to tightly abut against the crest portion of the first feedback element 112.
[0034] The working principle of the first feedback element 112 and the second feedback element 122: When the user pushes the top cover 102 to make the slider 121 slide along the groove 111, the first crest 1221 of the second feedback element 122 will sequentially enter the trough of the first feedback element 112, producing a slight "click" sound. Simultaneously, due to the properties of the elastic material, tactile feedback is provided. The second crest 1222 will abut against the crest of the first feedback element 112 during the sliding process, further enhancing the sense of resistance and sound feedback during operation. This dual feedback mechanism not only allows the user to experience a clear operating rhythm but also allows them to determine whether the top cover 102 is fully open or closed through changes in sound and touch. Through this carefully designed combination of the first feedback element 112 and the second feedback element 122, users can obtain more explicit operational feedback, increasing the intuitiveness and enjoyment of use. Especially in situations of rapid operation or limited visibility, users can still accurately grasp the status of the earphone charging case 100 through hearing and touch, improving product usability and user experience.
[0035] like Figures 2 to 6As shown, two sets of the opening locking member 130 and the closing locking member 140 are respectively provided and distributed on both sides of the width direction of the first sliding mechanism 110. The double-sided layout not only increases the contact area and improves the stability of the lock, but also balances the force distribution on the left and right sides, preventing skewing.
[0036] like Figures 2 to 6 As shown, the upper cover 102 is also provided with an auxiliary locking member 160. When the upper locking member 150 engages with the closing locking member 140, the auxiliary locking member 160 engages with the opening locking member 130. Specifically, the upper locking member 150 and the auxiliary locking member 160 are located on both sides of the upper cover 102 along its length, and are respectively positioned opposite to the opening locking member 130 and the closing locking member 140. When the user pushes the upper cover 102 to the fully closed position, the upper locking member 150 first engages with the closing locking member 140 to ensure that the upper cover 102 is in a stable closed state. During or after this process, the auxiliary locking member 160 automatically contacts and engages with the opening locking member 130. For example, the auxiliary locking member 160 can be a small elastic buckle or magnetic element, which forms an additional locking effect with the opening locking member 130 (possibly a corresponding groove or magnetic part) when the upper cover 102 is fully closed. This dual locking mechanism not only increases the stability of the top cover 102 when closed, reducing the risk of accidental opening, but also provides users with a clearer "closing confirmation" signal, enhancing user confidence. The presence of the auxiliary locking component 160 makes the earphone charging case 100 safer and more reliable to carry or store, especially in dynamic environments (such as sports, travel, etc.), effectively preventing accidental opening caused by vibration or other external forces.
[0037] More preferably, the opening locking element 130 and the closing locking element 140 are first magnetic elements, and the locking element 150 is a second magnetic element. The opening locking element 130 and the closing locking element 140 are magnetically attracted to the locking element 150. The magnetic elements can be permanent magnets or electromagnets, and appropriate materials and sizes are selected according to specific design requirements. When the user pushes the top cover 102 to bring the locking element 150 close to the closing locking element 140, due to the magnetic attraction between the two, the locking element 150 will automatically align and firmly attach to the closing locking element 140, ensuring that the top cover 102 is in a fully closed state. At this time, the top cover 102 is securely locked to prevent accidental opening. Similarly, when the user needs to open the top cover 102, the locking element 150 is disengaged from the closing locking element 140 by sliding the top cover 102 and moved to the fully open position of the top cover 102. During this process, the locking component 150 will eventually magnetically engage with the unlocking component 130, ensuring that the top cover 102 remains fully open for easy removal or placement of the earphones. The selection and arrangement of the magnetic components should take into account the appropriate magnetic strength, ensuring sufficient attraction to maintain stability without creating excessive resistance that could negatively impact the user's operating experience.
[0038] All technical features in this embodiment can be freely combined according to actual needs.
[0039] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.
Claims
1. An earphone charging box, comprising a box body and an upper cover, characterized in that: The box body is provided with first sliding mechanisms on opposite sides, and the upper cover is provided with second sliding mechanisms that slidingly cooperate with the first sliding mechanisms; the box body is provided with opening and closing locking members on opposite sides along the sliding direction of the first sliding mechanisms, and the upper cover is provided with upper locking members that cooperate with the opening and closing locking members; when the upper locking members cooperate with the opening locking members, the upper cover is in an opening state, and when the upper locking members cooperate with the closing locking members, the upper cover is in a closing state; when the first sliding mechanisms and the second sliding mechanisms slide relative to each other, the upper cover can be switched between the opening state and the closing state.
2. The earphone charging case of claim 1, wherein: The first sliding mechanisms include sliding grooves that are formed along the length direction of the box body, and the second sliding mechanisms include sliding blocks that are arranged along the length direction of the upper cover; or the first sliding mechanisms include sliding blocks that are arranged along the length direction of the box body, and the second sliding mechanisms include sliding grooves that are formed along the length direction of the upper cover.
3. The earphone charging case of claim 2, wherein: The first sliding mechanisms include two sliding grooves that are arranged along the width direction of the box body, and the slots of the two sliding grooves are arranged in directions away from each other; the second sliding mechanisms include sliding blocks that slidingly cooperate with the sliding grooves.
4. The earphone charging case of claim 2, wherein: The sliding grooves are provided with first feedback members, and the sliding blocks are provided with second feedback members that contact and cooperate with the first feedback members; when the sliding blocks slide back and forth along the sliding grooves, the first feedback members and the second feedback members move relative to each other and emit feedback sounds.
5. The earphone charging case of claim 4, wherein: The cross section of the contact surface of the first feedback members and the second feedback members is in a wave shape, and the second feedback members and the first feedback members are in elastic abutting cooperation.
6. The earphone charging case of claim 5, wherein: The second feedback members include first and second wave peak portions that contact and cooperate with the first feedback members, respectively; the first wave peak portion and the contact surface of the first feedback members are in concave-convex cooperation, and the second wave peak portion and the contact surface of the first feedback members are in abutting cooperation.
7. The earphone charging case according to any one of claims 1-6, characterized in that: The upper cover is further provided with auxiliary locking members that cooperate with the opening locking members when the upper locking members cooperate with the closing locking members.
8. The earphone charging case of claim 7, wherein: The opening and closing locking members are first magnetic members, and the upper locking members are second magnetic members; the opening and closing locking members and the upper locking members are in magnetic attraction cooperation, respectively.
9. The earphone charging case of claim 1, wherein: The opening and closing locking members are provided with two groups, respectively, and are distributed on the two sides along the width direction of the first sliding mechanisms.
10. An earphone system, characterized by: The earphone charging box and the earphone main body are included.