charging case

By introducing flexible components and deformation gaps into the charging case, the problem of adapting the charging case to ear-wearing devices of different heights was solved, achieving stable charging of the devices and reducing costs.

CN224537812UActive Publication Date: 2026-07-21EARWEISS TECHNOLOGY (SHENZHEN) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
EARWEISS TECHNOLOGY (SHENZHEN) CO LTD
Filing Date
2025-06-27
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing charging cases are difficult to adapt to various ear-wearing devices of different heights, resulting in poor versatility and increased production costs.

Method used

Design a charging case comprising a case body, a case lid, and a flexible component. The case body has a storage slot, the case lid has a receiving cavity, the flexible component is installed in the receiving cavity and connected to the case lid, the flexible component abuts against the ear wearable device and has a deformation gap to adapt to ear wearable devices of different heights.

Benefits of technology

By utilizing the deformation gap of the flexible component, the positional stability of the ear-wearable device during charging is ensured, charging stability is improved, and production costs are reduced.

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Abstract

The application relates to the technical field of ear wearable devices, in particular to a charging box. The charging box comprises a box body, a box cover and a flexible piece. A receiving groove is arranged on the box body, and the receiving groove is used for accommodating an ear wearable device. The box cover is movably connected to the box body, and the box cover is provided with an accommodating cavity. The flexible piece is installed in the accommodating cavity and connected with the box cover. At least part of the flexible piece is used for abutting and matching the ear wearable device, and a deformation gap exists between at least part of the flexible piece and the box cover along the depth direction of the accommodating cavity, so that at least part of the flexible piece can be deformed towards the direction of the deformation gap. The charging box provided by the application solves the problem that the existing charging box is difficult to adapt to ear wearable devices with different heights.
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Description

Technical Field

[0001] This application relates to the field of ear wearable devices, and in particular to a charging case. Background Technology

[0002] Currently, some wearable ear devices, such as Bluetooth earphones, use Bluetooth technology for communication, thus eliminating the need for wires and making them more convenient to use. However, Bluetooth earphones consume a relatively large amount of power, so they often need to be equipped with a charging case to meet battery life requirements. The charging case uses a lid to confine the Bluetooth earphones to a preset position inside the case, ensuring that the earphones do not shake during charging due to vibrations, which could cause poor contact of charging components (such as charging contacts), thereby improving charging stability.

[0003] However, with the emergence of various customized Bluetooth earphones, the shapes of Bluetooth earphones have become more and more diverse. Since each customized Bluetooth earphone has a different height, the charging case usually has to be designed to match the size of the Bluetooth earphone, resulting in poor universality of the charging case. If a charging case of the same size is used, it is difficult to adapt to earphones of different heights. The charging case needs to manufacture different structural components to fix the Bluetooth earphone, which is also not conducive to mass production, thus greatly increasing the cost. Utility Model Content

[0004] Therefore, it is necessary to provide a charging case to solve the problem that existing charging cases are difficult to adapt to various ear-wearing devices of different heights.

[0005] This application provides a charging case, which includes a case body, a case lid, and a flexible component. The case body has a storage slot for accommodating an ear-wearing device. The case lid is movably connected to the case body and has a receiving cavity. The flexible component is installed in the receiving cavity and connected to the case lid. At least a portion of the flexible component is used to abut against and cooperate with the ear-wearing device, and a deformation gap exists between at least a portion of the flexible component and the case lid along the depth direction of the receiving cavity, so that at least a portion of the flexible component can deform in the direction of the deformation gap.

[0006] In one embodiment, the size of the deformation gap is L, and L≤4mm.

[0007] In one embodiment, a portion of the flexible member is convex away from the lid, so that the deformation gap can be formed between the flexible member and the lid.

[0008] In one embodiment, the flexible member includes a first flexible portion and a second flexible portion, the second flexible portion being connected to opposite sides of the first flexible portion and used to connect with the inner surface of the lid; wherein the first flexible portion protrudes relative to the second flexible portion away from the lid and is used to abut against the ear-wearing device housed in the storage slot.

[0009] In one embodiment, the thickness of the flexible element is T, and 0.5mm≤T≤2mm.

[0010] In one embodiment, the charging case further includes a fixing member, the flexible member is connected to the fixing member and is mounted to the case cover through the fixing member; wherein the hardness of the flexible member is less than the hardness of the fixing member.

[0011] In one embodiment, the flexible component and the fixing component are integrally formed.

[0012] In one embodiment, the flexible member has a first step and the fixing member has a second step, the first step and the second step abutting each other along the thickness direction of the flexible member; wherein, one of the first step and the second step has a connecting hole and the other has a connecting post, the connecting post being inserted into the connecting hole and connected to the connecting hole.

[0013] In one embodiment, one of the lid and the fixing member is provided with a first positioning member, and the other is provided with a second positioning member. The first positioning member and the second positioning member are inserted and engaged to position the lid and the fixing member.

[0014] In one embodiment, one of the lid and the fastener is provided with a first buckle and the other is provided with a second buckle, the first buckle and the second buckle engaging in a locking engagement.

[0015] In one embodiment, the ear-wearing device includes a custom housing, the shape of which matches the shape of the storage slot, and the storage slot and the custom housing are customized according to the shape of the user's ear.

[0016] Compared to existing technologies, the charging case provided in this application, by incorporating a flexible component, can abut against the ear-wearing device when the lid is closed, thereby ensuring the stability of the ear-wearing device's position and preventing misalignment of the charging components due to shaking of the ear-wearing device, thus improving the charging stability of the ear-wearing device. Furthermore, the existence of a deformation gap between the flexible component and the lid provides deformation space for the flexible component to deform under the reaction force of the ear-wearing device, thus adapting to ear-wearing devices of various heights and effectively reducing costs. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology 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.

[0018] Figure 1 A schematic diagram of the structure of a charging box according to an embodiment of this application;

[0019] Figure 2 A cross-sectional view of a charging case according to an embodiment of this application;

[0020] Figure 3 A partial schematic diagram of a charging case according to an embodiment of this application;

[0021] Figure 4 A cross-sectional view of the flexible member and the fastener in an embodiment provided in this application;

[0022] Figure 5 A top view of the flexible member and the fastener in an embodiment provided in this application;

[0023] Figure 6 A bottom view of the lid of a box according to an embodiment provided in this application.

[0024] The symbols in the diagram represent the following meanings:

[0025] 100. Charging case; 10. Case body; 101. Storage slot; 20. Case lid; 201. Receiving cavity; 21. Second positioning component; 22. Second buckle; 30. Flexible component; 301. Deformation gap; 31. First flexible part; 32. Second flexible part; 33. First step; 331. Connecting post; 40. Fixing component; 401. Connecting hole; 41. Second step; 42. First positioning component; 43. First buckle; 200. Ear wearable device; 210. Custom shell. Detailed Implementation

[0026] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0027] 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 the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0028] 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 at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0029] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0031] Currently, some wearable ear devices, such as Bluetooth earphones, use Bluetooth technology for communication, thus eliminating the need for wires and making them more convenient to use. However, Bluetooth earphones consume a relatively large amount of power, so they often need to be equipped with a charging case to meet battery life requirements. The charging case uses a lid to confine the Bluetooth earphones to a preset position inside the case, ensuring that the earphones do not shake during charging due to vibrations, which could cause poor contact of charging components (such as charging contacts), thereby improving charging stability.

[0032] However, with the emergence of various customized Bluetooth earphones, the shapes of Bluetooth earphones have become more and more diverse. Since each customized Bluetooth earphone has a different height, the charging case usually has to be designed to match the size of the Bluetooth earphone, resulting in poor universality of the charging case. If a charging case of the same size is used, it is difficult to adapt to earphones of different heights. The charging case needs to manufacture different structural components to fix the Bluetooth earphone, which is also not conducive to mass production, thus greatly increasing the cost.

[0033] Please see Figures 1-6 To address the problem that existing charging cases are difficult to adapt to various ear-wearing devices of different heights, this application provides a charging case 100, which includes a case body 10, a case lid 20, and a flexible component 30. The case body 10 has a storage slot 101 for accommodating an ear-wearing device 200, which can be a Bluetooth headset, hearing aid, etc.

[0034] In this embodiment, the ear-wearing device 200 can also be a customized structure. For example, the ear-wearing device 200 includes a customized shell 210, which is customized according to the shape of the user's ear. That is, the customized shell 210 is designed and manufactured individually for different users' ears, rather than being uniformly designed and manufactured. Generally speaking, the ear structure contours of different users are not the same, which results in differences in the shape of different customized shells 210. In this embodiment, the customized shell 210 can be manufactured, for example, by taking an ear mold of the user's ear and then using manufacturing equipment based on the taken ear mold. Here, the customized shell 210 can be manufactured by 3D printing or by other manufacturing methods. Furthermore, the size of the customized shell 210 can be the same as the taken ear mold, or it can be slightly smaller than the taken ear mold to improve the wearing comfort of some sensitive users.

[0035] Furthermore, the shape of the storage slot 101 matches the shape of the customized outer shell 210. That is, the storage slot 101 in this embodiment is also customized according to the shape of the user's ear, and in particular, it is customized according to the ear shape corresponding to the customized outer shell 210. This facilitates the storage of the customized ear wearable device 200 and ensures that the ear wearable device 200 will not shake due to vibration or other factors during charging, which could lead to poor contact of the charging components, thereby improving charging stability.

[0036] In one embodiment, the cover 20 is movably connected to the body 10, and the cover 20 has a receiving cavity 201. The flexible member 30 is installed in the receiving cavity 201 and connected to the cover 20. At least a portion of the flexible member 30 is used to abut against and fit the ear-wearing device 200, and a deformation gap 301 is formed between at least a portion of the flexible member 30 and the cover 20 along the depth direction of the receiving cavity 201, so that at least a portion of the flexible member 30 can deform in the direction of the deformation gap 301.

[0037] Understandably, by incorporating the flexible component 30, this application ensures that when the cover 20 is closed, the flexible component 30 abuts against the ear-wearing device 200, thereby maintaining the stability of the ear-wearing device 200's position and preventing the charging components from misaligning due to shaking. This improves the charging stability of the ear-wearing device 200. Furthermore, the presence of a deformation gap 301 between the flexible component 30 and the cover 20 provides deformation space for the flexible component 30 to deform under the reaction force of the ear-wearing device 200, thus adapting to ear-wearing devices 200 of various heights and effectively reducing costs.

[0038] The charging component can receive electrical energy from the outside and charge the battery inside the ear-wearing device 200. The charging component can be a wired charging component (such as a charging contact) or a wireless charging component (such as a charging coil). This application does not impose any specific limitations.

[0039] In one embodiment, a portion of the flexible member 30 protrudes away from the lid 20, so that a deformation gap 301 can be formed between the flexible member 30 and the lid 20. That is, the flexible member 30 is bent to form a U-shaped structure or a near-V-shaped structure, and the deformation gap 301 is formed between the structure and the lid 20, thereby facilitating the deformation of the flexible member 30 after contact.

[0040] Specifically, such as Figure 4 As shown, the flexible member 30 may include a first flexible portion 31 and a second flexible portion 32. The second flexible portion 32 is connected to opposite sides of the first flexible portion 31 and is used to connect with the inner surface of the cover 20. The first flexible portion 31 protrudes away from the cover 20 relative to the second flexible portion 32 and is used to abut against the ear-wearing device 200 housed in the storage slot 101. That is, the first flexible portion 31 is bent to form a U-shaped or near-V-shaped structure to facilitate abutment against the ear-wearing device 200, while the second flexible portion 32 is generally planar to facilitate connection with other structures.

[0041] Furthermore, such as Figure 2As shown, the deformation gap 301 is L, and L≤4mm. This facilitates the closing of the lid 20 and ensures the miniaturization of the charging case 100 structure, reducing costs. It's easy to understand that the force exerted when the lid 20 closes is limited. If L is too large, for example, greater than 8mm, the gap between the flexible component 30 and the lid 20 will be larger. The flexible component 30 will be subjected to a greater deformation force when it comes into contact with the ear-wearing device 200. This force will act on the lid 20. When it exceeds the force exerted when the lid 20 closes, it will be difficult to close, affecting the safety of the charging case 100 during use. To avoid the lid 20 being subjected to excessive force, the height of the lid 20 needs to be increased, which will increase the size of the charging case 100, increasing costs and reducing portability.

[0042] Optionally, the size of the deformation gap 301 can be 1mm, 2mm, 3mm, or 4mm, etc. Since the flexible part 30 is arranged in a U-shape or near-V shape, the size of the deformation gap 301 can be determined by the distance from the lowest point of the U-shape or near-V-shape to the cover 20.

[0043] To further reduce the difficulty of deforming the flexible component 30, in one embodiment, the thickness of the flexible component 30 is T, and 0.5mm ≤ T ≤ 2mm. If T > 2mm, the thickness of the flexible component 30 is relatively large, which is not conducive to the deformation of the flexible component 30 and will cause the cover 20 to be subjected to a large force. If T < 0.5mm, the thickness of the flexible component 30 is relatively small, and the abutment force of the flexible component 30 on the ear wearable device 200 is insufficient, which poses a risk of shaking when the ear wearable device 200 is charging.

[0044] Specifically, the flexible component 30 can be a TPU (Thermoplastic Polyurethane) component. TPU material has good flexibility and wear resistance, and is easy to mold. In addition, TPU has low hardness and is more easily deformed, which can better fit the surface of the ear wearable device 200 and ensure good charging contact.

[0045] However, it is not limited to this. The flexible part 30 can also be a TPE part (Thermoplastic rubber) or a silicone part, as long as it can achieve the same effect.

[0046] In one embodiment, such as Figures 2-5 As shown, the charging case 100 also includes a fixing member 40, and a flexible member 30 is connected to the fixing member 40 and installed on the case cover 20 through the fixing member 40. The flexible member 30 has a lower hardness than the fixing member 40. That is, by using a fixing member 40 with higher hardness, a better connection with the case cover 20 can be achieved, ensuring the reliability of the connection.

[0047] Furthermore, the flexible component 30 and the fixed component 40 are integrally formed, which simplifies the production process, improves production efficiency, and ensures the reliability of the connection between the flexible component 30 and the fixed component 40.

[0048] Specifically, the flexible component 30 and the fixed component 40 can be integrally molded by injection molding.

[0049] Furthermore, such as Figure 2 and Figure 3 As shown, the flexible member 30 has a first step 33, and the fixing member 40 has a second step 41. The first step 33 and the second step 41 abut against each other along the thickness direction of the flexible member 30. One of the first step 33 and the second step 41 has a connecting hole 401, and the other has a connecting post 331. The connecting post 331 is inserted into the connecting hole 401 and connected to it. This effectively increases the contact area between the flexible member 30 and the fixing member 40, greatly increasing the connection strength after injection molding, thus more effectively preventing the flexible member 30 and the fixing member 40 from separating. For example, in this embodiment, the connecting post 331 is disposed on the first step 33 of the flexible member 30, and the connecting hole 401 is formed on the second step 41 of the fixing member 40.

[0050] Specifically, there are multiple first steps 33, second steps 41, connecting posts 331 and connecting holes 401, which are arranged at intervals along the circumference of the flexible member 30 to further enhance the connection strength between the flexible member 30 and the fixed member 40.

[0051] In one embodiment, such as Figure 5 and Figure 6 As shown, one of the lid 20 and the fixing member 40 is provided with a first positioning member 42, and the other is provided with a second positioning member 21. The first positioning member 42 and the second positioning member 21 are inserted and engaged to position the lid 20 and the fixing member 40. In this way, the accurate fit between the lid 20 and the fixing member 40 can be ensured, and the connection efficiency between the two can be improved.

[0052] Optionally, the first positioning member 42 can be set as a circular column or a T-shaped column, and the second positioning member 21 can be set as a circular groove or a T-shaped groove. In this embodiment, the first positioning member 42 is set on the fixing member 40, and the second positioning member 21 is set on the box cover 20. Of course, it can also be set reasonably according to actual needs.

[0053] In one embodiment, such as Figures 3-6 As shown, one of the lid 20 and the fixing member 40 is provided with a first buckle 43 and the other is provided with a second buckle 22. The first buckle 43 and the second buckle 22 engage with each other to achieve the engagement between the lid 20 and the fixing member 40, ensuring reliable connection between the two and preventing the flexible member 30 and the fixing member 40 from detaching from the lid 20.

[0054] Specifically, in this embodiment, the first buckle 43 is disposed on the fixing member 40, and the second buckle 22 is disposed on the box cover 20.

[0055] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0056] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. A charging case, characterized in that, The device includes a box body (10), a box cover (20), and a flexible component (30). The box body (10) has a storage slot (101) for accommodating an ear-wearing device (200). The box cover (20) is movably connected to the box body (10) and has a receiving cavity (201). The flexible component (30) is installed in the receiving cavity (201) and connected to the box cover (20). At least a portion of the flexible element (30) is used to abut against the ear-wearing device (200), and along the depth direction of the receiving cavity (201), at least a portion of the flexible element (30) and the cover (20) have a deformation gap (301) so that at least a portion of the flexible element (30) can deform toward the deformation gap (301).

2. The charging case according to claim 1, characterized in that, The deformation gap (301) has a size of L, and L≤4mm.

3. The charging case according to claim 1, characterized in that, A portion of the flexible member (30) is provided to protrude away from the lid (20) so that the deformation gap (301) can be formed between the flexible member (30) and the lid (20).

4. The charging case according to claim 1, characterized in that, The flexible component (30) includes a first flexible part (31) and a second flexible part (32), the second flexible part (32) is connected to the opposite sides of the first flexible part (31), and the second flexible part (32) is used to connect with the inner surface of the box cover (20); The first flexible part (31) protrudes away from the cover (20) relative to the second flexible part (32) and is used to abut against the ear wearable device (200) housed in the storage slot (101).

5. The charging case according to claim 1, characterized in that, The thickness of the flexible component (30) is T, and 0.5mm≤T≤2mm.

6. The charging case according to claim 1, characterized in that, The charging box also includes a fixing member (40), the flexible member (30) is connected to the fixing member (40) and is installed on the box cover (20) through the fixing member (40); The hardness of the flexible component (30) is less than that of the fixed component (40).

7. The charging case according to claim 6, characterized in that, The flexible component (30) and the fixed component (40) are integrally formed structures.

8. The charging case according to claim 7, characterized in that, The flexible member (30) is provided with a first step (33), and the fixed member (40) is provided with a second step (41). The first step (33) and the second step (41) abut against each other along the thickness direction of the flexible member (30). One of the first step (33) and the second step (41) is provided with a connecting hole (401), and the other is provided with a connecting post (331). The connecting post (331) is inserted into the connecting hole (401) and connected to the connecting hole (401).

9. The charging case according to claim 6, characterized in that, One of the box cover (20) and the fixing member (40) is provided with a first positioning member (42) and the other is provided with a second positioning member (21). The first positioning member (42) and the second positioning member (21) are inserted and engaged to position the box cover (20) and the fixing member (40).

10. The charging case according to claim 6, characterized in that, One of the box cover (20) and the fastener (40) is provided with a first buckle (43) and the other is provided with a second buckle (22), and the first buckle (43) and the second buckle (22) are engaged.

11. The charging case according to claim 1, characterized in that, The ear-wearing device (200) includes a custom shell (210), the shape of the storage slot (101) is matched with the shape of the custom shell (210), and the storage slot (101) and the custom shell (210) are customized according to the shape of the user's ear.