Earphone with detachable battery and earphone system

By designing a removable battery structure in Bluetooth headsets and using elastic conductive sheets to achieve electrical connection between the battery and the motherboard, the problem of non-replaceable batteries in traditional headsets is solved, improving user experience and reducing resource waste and environmental pollution.

CN223942812UActive Publication Date: 2026-02-24SHENZHEN CANNICE TECH
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Patent Information

Application Number
CN202520171430.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-23
Publication Date
2026-02-24
Estimated Expiration
2035-01-23

AI Technical Summary

Technical Problem

The batteries in existing Bluetooth headsets are not replaceable, which makes them inconvenient to use when the battery is depleted, increases user costs and wastes resources, and is also not environmentally friendly.

Method used

Design a headphone with a removable battery. By setting a receiving groove in the first shell and a receiving cavity in the second shell, and placing an elastic conductive sheet in the receiving cavity, a reliable electrical connection between the battery and the main board is achieved by using a snap-fit ​​connection, which makes it convenient for users to quickly replace the battery.

Benefits of technology

It enables quick battery replacement without damaging the headphone structure, improving ease of use, extending the headphone's lifespan, reducing resource waste and environmental pollution, and enhancing the user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an earphone with a detachable battery and an earphone system. The earphone with the detachable battery comprises a first shell, a second shell, the battery, a mainboard, an elastic sheet and an elastic conducting sheet, the first shell is provided with an accommodating groove; the battery is detachably mounted in the accommodating groove; the second shell is provided with an accommodating cavity; the main board is arranged in the containing cavity, the elastic conducting strip is arranged on the outer wall, facing the battery, of the containing cavity, and the elastic conducting strip is electrically connected with the main board; and the first shell and the second shell can be connected in a buckling manner, so that the battery is electrically connected with the elastic conducting strip. The detachable battery is realized, the service life of the earphone is prolonged, the user experience is improved, resource waste and environmental pollution are reduced, and sustainable development is realized.
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Description

Technical Field

[0001] This utility model relates to the field of headphone technology, and in particular to a headphone and headphone system with a removable battery. Background Technology

[0002] Most Bluetooth headsets currently on the market feature a one-piece design, a trend that has become particularly pronounced in recent years. As the name suggests, a one-piece Bluetooth headset integrates all its components, such as the battery, speaker, microphone, and control unit, into a single, inseparable unit. This design not only makes the headset more streamlined and aesthetically pleasing but also enhances its portability and durability. Utility Model Content

[0003] In order to extend the lifespan of headphones, improve user experience, reduce resource waste and environmental pollution, and achieve sustainable development, this utility model provides a headphone and headphone system with a removable battery.

[0004] In a first aspect, this utility model provides an earphone with a removable battery, comprising: a first shell, a second shell, a battery, a main board, an elastic sheet, and an elastic conductive sheet;

[0005] The first outer casing is provided with a receiving groove;

[0006] The battery is detachably installed in the receiving slot;

[0007] The second outer casing is provided with a receiving cavity;

[0008] The main board is disposed inside the cavity, and the elastic conductive sheet is disposed on the outer wall of the cavity facing the battery, and the elastic conductive sheet is electrically connected to the main board.

[0009] The first housing and the second housing can be snapped together to electrically connect the battery to the elastic conductive sheet.

[0010] Optionally, the earphone with the removable battery also includes an elastic piece attached to the outside of the receiving slot;

[0011] The free end of the elastic sheet has a protrusion;

[0012] The inner side of the second outer shell is provided with an abutment portion corresponding to the protrusion;

[0013] When the first outer shell and the second outer shell are in a mutually engaged state, the protrusion abuts against the abutting portion.

[0014] The second outer shell has an inlet cavity corresponding to the abutment portion, the inlet cavity allowing an external tool to be inserted and abut against the protrusion to separate the first outer shell and the second outer shell.

[0015] Optionally, the earphone with a removable battery also includes a clip disposed on the outer wall of the first housing;

[0016] The outer wall of the second housing is provided with a snap-fit ​​strip;

[0017] The buckle can be engaged with the snap-fit ​​strip.

[0018] Optionally, the earphone with the removable battery also includes fasteners;

[0019] The first outer shell is provided with a first connecting cavity, and the first connecting cavity is disposed opposite to the elastic sheet;

[0020] The second outer shell is provided with a second connecting cavity corresponding to the first connecting cavity;

[0021] The fastener can pass through the first connecting cavity and the second connecting cavity to connect the first housing and the second housing.

[0022] Optionally, the earphone with the removable battery also includes a speaker assembly;

[0023] The speaker assembly includes a speaker housing connected to the first housing and a speaker module disposed within the speaker housing;

[0024] The speaker module includes at least an FPC;

[0025] Both the first housing and the second housing are provided with FPC connection slots;

[0026] The FPC can be connected to the motherboard through each of the FPC connection slots.

[0027] Optionally, the earphone with the removable battery also includes a flexible connector;

[0028] The two ends of the flexible connector are respectively connected to the first outer shell and the second outer shell;

[0029] The length of the portion of the FPC placed between the two FPC connection slots is greater than the length of the flexible connector.

[0030] Secondly, embodiments of the present invention provide an earphone system, including a charging case and earphones with a removable battery as described in the first aspect.

[0031] Optionally, the headphone system may also include multiple backup batteries;

[0032] The charging box has a battery compartment;

[0033] The battery compartment can accommodate multiple of the spare batteries.

[0034] Optionally, the headphone system also includes a display screen disposed on the charging case;

[0035] The display screen is electrically connected to each of the backup batteries, and the display screen has a first display area, which can display the power information of each of the backup batteries.

[0036] Optionally, the display screen has a second display area, which can display the degree of degradation of each of the backup batteries.

[0037] The beneficial effects of the above-mentioned technical solutions provided in the embodiments of this utility model include at least the following:

[0038] This invention provides a removable battery earphone. A first outer shell has a receiving slot for the removable battery, and a second outer shell has a receiving cavity containing a main board. An elastic conductive sheet is provided on the outer wall of the receiving cavity facing the battery and is electrically connected to the main board. The first and second outer shells can be snapped together, allowing the battery to be electrically connected to the elastic conductive sheet. This snap-fit ​​connection allows for quick disassembly of both the first and second outer shells without damaging the earphone structure, enabling battery replacement and solving the problem of non-removable batteries in traditional Bluetooth earphones. Users can continue using the earphones by replacing the battery without waiting for a long charging time, which is especially beneficial when the earphones are urgently needed but the battery is low, improving convenience and user experience. When the battery performance deteriorates due to prolonged use or natural degradation, users only need to replace the battery instead of the entire earphone, extending the earphone's lifespan, saving significant costs, and reducing resource waste and environmental pollution to some extent, thus achieving sustainable development.

[0039] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings.

[0040] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0041] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0042] Figure 1 This is a schematic diagram of the overall structure of the earphone with a removable battery provided in an embodiment of this utility model;

[0043] Figure 2 This is an assembly diagram of an earphone with a removable battery provided in an embodiment of the present utility model.

[0044] Figure 3 This is a schematic diagram of the structure of the elastic conductive sheet provided in the embodiments of this utility model;

[0045] Figure 4 This is a schematic diagram of an external tool being inserted into the earphone according to an embodiment of the present invention;

[0046] Figure 5 for Figure 4 Cross-sectional view;

[0047] Figure 6 for Figure 5 Enlarged view of point A in the middle;

[0048] Figure 7 for Figure 5 Enlarged view of point B in the middle;

[0049] Figure 8 This is another assembly diagram of the earphone with a removable battery provided in an embodiment of the present utility model;

[0050] Figure 9 This is a schematic diagram showing the connection between the flexible connector and the first and second outer shells provided in this embodiment of the utility model;

[0051] Explanation of reference numerals in the attached figures:

[0052] 1. First outer shell; 101. First connecting cavity; 102. Receiving groove; 2. Second outer shell; 201. Abutting part; 202. Passing cavity; 203. Second connecting cavity; 204. Receiving cavity; 3. Battery; 4. Main board; 5. Elastic sheet; 501. Protrusion; 6. Elastic conductive sheet; 7. Fastener; 8. Silicone pad; 9. Speaker shell; 10. FPC; 11. Flexible connector; 12. Upper shell; 13. External tool. Detailed Implementation

[0053] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0054] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "far," "near," "front," and "rear," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0055] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0056] The inventors discovered that in existing all-in-one earphone designs, all components, including the battery, are built-in. Once the battery is depleted, users can only resume use by charging, which undoubtedly brings many inconveniences to daily carrying and use. Especially during long trips or extended outdoor activities, if the Bluetooth earphone is not charged in time, it may become useless and unable to meet immediate communication or entertainment needs.

[0057] When batteries age or fail, users often cannot replace them themselves and need to seek professional repair services or purchase new Bluetooth headsets. This increases the user's cost and time, and also leads to significant resource waste and environmental pollution.

[0058] To address the aforementioned issues, the inventors developed a removable battery-equipped earphone and earphone system. This removable battery design allows users to easily replace the battery, extending the earphone's lifespan, improving the user experience, and reducing resource waste and environmental pollution to some extent, thus contributing to sustainable development.

[0059] Example 1

[0060] See Figures 1-6This embodiment proposes a removable battery earphone, which includes: a first shell 1, a second shell 2, a battery 3, a main board 4, an elastic sheet 5, and an elastic conductive sheet 6. A receiving groove 102 is provided in the first shell 1, allowing the battery 3 to be detachably installed in the groove 102, which securely and stably houses the battery 3. A receiving cavity 204 is provided in the second shell 2, within which the main board 4 is housed. The main board 4 integrates various electronic components and control circuits, serving as the core for the earphone's audio transmission and control functions. To ensure a reliable electrical connection between the battery 3 and the main board 4, an elastic conductive sheet 6 is provided on the outer wall of the receiving cavity 204 of the second shell 2, facing the battery 3. The elastic conductive sheet 6 is electrically connected to the main board 4. The first shell 1 and the second shell 2 can be interlocked and connected, thereby electrically connecting the battery 3 to the elastic conductive sheet 6. In other words, while achieving a physical connection between the first shell 1 and the second shell 2, the battery 3 is also electrically connected to the elastic conductive sheet 6. This ingenious design facilitates battery replacement for the user while ensuring the stability and reliability of the battery 2's power supply to the earphone.

[0061] See Figure 3 By setting the elastic conductive sheet 6, the power connection of the entire earphone can be achieved. Specifically, when the elastic conductive sheet 6 is not connected to the battery 3, that is, when the elastic conductive sheet 6 is in a free state, one end of the elastic conductive sheet 6 can extend to the receiving groove 102. When the first shell 1 and the second shell 2 are fastened together, the battery 3 will compress and abut against the elastic conductive sheet 6. Under the action of the fastening of the first shell 1 and the second shell 2, a tight contact is formed between the battery 3 and the elastic conductive sheet 6. Through the elastic conductive sheet 6, the battery 3 is electrically connected to the main board 4, thereby ensuring the normal operation of the entire earphone.

[0062] By using a snap-fit ​​connection between the first outer shell 1 and the second outer shell 2, the first and second outer shells 1 and 2 can be quickly disassembled without damaging the earphone structure, allowing for rapid replacement of the battery 3. This solves the problem of non-replaceable batteries in traditional Bluetooth earphones. Users no longer need to wait for long charging times; they can continue using the earphones simply by replacing the battery 3. This is especially beneficial when the earphones are urgently needed but the battery is low, improving convenience and user experience. When the battery 3 experiences performance degradation due to prolonged use or natural degradation, users only need to replace the battery 3 instead of the entire earphone, extending its lifespan, saving significant costs, and reducing resource waste and environmental pollution to some extent, thus contributing to sustainable development.

[0063] In one specific embodiment, see [reference] Figure 2 , Figure 5 and Figure 6An elastic sheet 5 is connected to the outside of the receiving groove 102, and the free end of the elastic sheet 5 has a protrusion 501. The inner side of the second outer casing 2 has an abutment portion 201 corresponding to the protrusion 501. (See reference...) Figure 5 and Figure 6 When the first outer shell 1 and the second outer shell 2 are fastened together, the protrusion 501 abuts against the abutment 201, thereby firmly connecting the first outer shell 1 and the second outer shell 2 and maintaining the electrical connection between the battery 3 and the elastic conductive sheet 6. To facilitate battery removal, an inlet cavity 202 is provided in the second outer shell 2 corresponding to the abutment 201. This inlet cavity 202 allows an external tool 13 (such as a screwdriver, pin, etc.) to be inserted into the inlet cavity 202, so that the external tool 13 abuts against the protrusion 501. By applying appropriate force, the user can use the external tool 13 to drive the protrusion 501 to move, causing the protrusion 501 to deform and disengage from the abutment 201, thereby separating the first outer shell 1 and the second outer shell 2. This allows for quick disassembly of the first outer shell 1 and the second outer shell 2, achieving the purpose of quick battery replacement and solving the problem of non-replaceable batteries in traditional Bluetooth headsets.

[0064] In another embodiment, see Figure 2 The outer wall of the first outer casing 1 is provided with a buckle (not shown in the figure), and the outer wall of the second outer casing is provided with a snap-fit ​​strip (not shown in the figure). When the first outer casing 1 and the second outer casing 2 are fastened together, the buckle engages with the snap-fit ​​strip, thereby achieving a secure connection between the first outer casing 1 and the second outer casing 2. When it is necessary to separate the first outer casing 1 and the second outer casing 2, the user only needs to pull the buckle to disengage it from the snap-fit ​​strip. The first outer casing 1 and the second outer casing 2 can be quickly installed and removed without the need for external tools, allowing for quick replacement of the battery 3 and improving ease of use.

[0065] In one specific embodiment, see [reference] Figure 7 and Figure 8 The earphones in this embodiment also include a fastener 7. The first outer shell 1 has a first connecting cavity 101, and the second outer shell 2 has a second connecting cavity 203 corresponding to the first connecting cavity 101. The fastener 7 can pass through the first connecting cavity 101 and the second connecting cavity 203 to connect the first outer shell 1 and the second outer shell 2. By providing the fastener 7, not only can a stable connection between the first outer shell 1 and the second outer shell 2 be ensured, but additional structural support can also be provided to prevent the first outer shell 1 and the second outer shell 2 from loosening or deforming.

[0066] In this embodiment, the first connecting cavity 101 is disposed opposite to the elastic sheet 5, that is, the fastener 7 and the elastic sheet 5 are disposed opposite to each other, see reference. Figure 8The elastic piece 5 is located on the left side of the first housing 1, and the fastener 7 is located on the right side of the first housing 1. When the first housing 1 and the second housing 2 are fastened together, the elastic piece 5 and the fastener 7 can work simultaneously from both sides, thereby enhancing the stability and effectiveness of the connection. At the same time, it helps to optimize the layout of internal components, avoid mutual interference between the elastic piece 5 and the fastener 7, and maintain the compactness of the structure.

[0067] In one specific embodiment, see [reference] Figure 2 and Figure 7 The earphone in this embodiment also includes a silicone pad 8 disposed in the first connecting cavity 101. The silicone pad 8 can fit tightly against the opening of the first connecting cavity 101 and seal the first connecting cavity 101 to effectively shield the fastener 7 and improve the overall aesthetics of the earphone. Moreover, since the silicone pad 8 has good sealing performance, it can prevent moisture and dust from entering the earphone through the first connecting cavity 101, protecting the internal electronic components from damage.

[0068] In one specific embodiment, see [reference] Figure 2 and Figure 9 The earphone in this embodiment also includes a speaker assembly. The speaker assembly includes a speaker housing 9 connected to the first housing 1 and a speaker module disposed within the speaker housing 9. The speaker module includes at least an FPC 10. Of course, the speaker module may also include components such as a speaker, FB microphone, call microphone, noise-canceling microphone, charging pin, and in-ear detection, as used in the prior art. Both the first housing 1 and the second housing 2 are provided with FPC connection slots (not shown in the figure), which helps to achieve effective connection and fixation of the FPC 10. The FPC 10 can pass through each FPC connection slot and connect to the motherboard 4. The FPC 10 is responsible for transmitting electrical signals and driving the speaker to produce sound.

[0069] In one specific embodiment, see [reference] Figure 2 and Figure 9 The earphones in this embodiment also include a flexible connector 11. The two ends of the flexible connector 11 are respectively connected to the first outer shell 1 and the second outer shell 2. The length of the portion of the FPC 10 placed between the two FPC connection slots is greater than the length of the flexible connector 11. When the user opens the first outer shell 1 and the second outer shell 2 to replace the battery 3, due to the restraining effect of the flexible connector 11, the FPC 10 will not be pulled due to excessive opening of the first outer shell 1 and the second outer shell 2, thereby avoiding damage to the FPC 10, achieving the function of protecting the FPC 10, and effectively extending the service life of the earphones.

[0070] In one specific embodiment, see [reference] Figure 2 and Figure 4The earphone in this embodiment also includes an upper shell 12, which is positioned facing the motherboard 4 and is detachably connected to the second outer shell 2. It can shield the motherboard 4, helping to prevent external factors such as dust and moisture from entering the earphone, thereby protecting the electronic components on the motherboard 4 from damage and effectively extending the service life of the earphone.

[0071] Example 2

[0072] Based on the same inventive concept, this embodiment proposes an earphone system, including a charging case and earphones with a removable battery as described in Embodiment 1.

[0073] In one specific embodiment, the headphone system also includes multiple backup batteries. The charging case has a battery compartment capable of holding multiple backup batteries. The specifications of the backup batteries are consistent with those of the batteries in Embodiment 1. When the currently used battery is depleted, a backup battery can be removed from the battery compartment to replace it. This provides users with a convenient and efficient battery life solution, meeting their needs in various scenarios and enhancing their user experience.

[0074] In one embodiment, the earphone system also includes a display screen located on the charging case. The display screen is electrically connected to each backup battery and has a first display area where it displays the battery level information of each backup battery. The battery level information is typically presented as a percentage or as icons, allowing the user to easily understand the remaining battery power. When the user needs to replace a battery, they can select the backup battery with the higher battery level based on the battery level information displayed on the screen, ensuring that the earphones continue to provide stable performance and battery life after battery replacement.

[0075] In one specific embodiment, the display screen also includes a second display area capable of displaying the degradation level of each backup battery, i.e., the performance decline of the battery during use. The degradation level is typically expressed as a percentage, graphic, or color change, helping users understand the battery's health and remaining lifespan. When the user needs to replace the battery, they can select the backup battery with the higher charge level based on the power information displayed on the screen, ensuring the headphones continue to provide stable performance and battery life after battery replacement. When the degradation level of a backup battery reaches a preset value, the user can promptly replace the backup battery to avoid affecting the headphone's performance due to battery degradation.

[0076] By adding a display screen, users are provided with a more intuitive and convenient way to understand the backup battery power and degradation level. This not only improves the user experience but also helps users make more reasonable battery replacement decisions, thereby ensuring the continuous and stable use of the headphones.

[0077] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. This disclosure is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims. Thus, if these modifications and variations of this utility model fall within the scope of the claims of this utility model and their equivalents, this utility model is also intended to include these modifications and variations.

Claims

1. A type of earphone with a removable battery, characterized in that, include: First outer casing, second outer casing, battery, motherboard, elastic sheet and elastic conductive sheet; The first outer casing is provided with a receiving groove; The battery is detachably installed in the receiving slot; The second outer casing is provided with a receiving cavity; The main board is disposed inside the cavity, and the elastic conductive sheet is disposed on the outer wall of the cavity facing the battery, and the elastic conductive sheet is electrically connected to the main board. The first housing and the second housing can be snapped together to electrically connect the battery to the elastic conductive sheet.

2. The earphone with a removable battery according to claim 1, characterized in that, It also includes an elastic sheet connected to the outside of the receiving groove; The free end of the elastic sheet has a protrusion; The inner side of the second outer shell is provided with an abutment portion corresponding to the protrusion; When the first outer shell and the second outer shell are in a mutually engaged state, the protrusion abuts against the abutting portion. The second outer shell has an inlet cavity corresponding to the abutment portion, the inlet cavity allowing an external tool to be inserted and abut against the protrusion to separate the first outer shell and the second outer shell.

3. The earphone with a removable battery according to claim 1, characterized in that, It also includes a buckle provided on the outer wall of the first housing; The outer wall of the second housing is provided with a snap-fit ​​strip; The buckle can be engaged with the snap-fit ​​strip.

4. The earphone with a removable battery according to claim 2 or 3, characterized in that, It also includes fasteners; The first outer shell is provided with a first connecting cavity, and the first connecting cavity is disposed opposite to the elastic sheet; The second outer shell is provided with a second connecting cavity corresponding to the first connecting cavity; The fastener can pass through the first connecting cavity and the second connecting cavity to connect the first housing and the second housing.

5. The earphone with a removable battery according to claim 4, characterized in that, It also includes speaker components; The speaker assembly includes a speaker housing connected to the first housing and a speaker module disposed within the speaker housing; The speaker module includes at least an FPC; Both the first housing and the second housing are provided with FPC connection slots; The FPC can be connected to the motherboard through each of the FPC connection slots.

6. The earphone with a removable battery according to claim 5, characterized in that, It also includes flexible connectors; The two ends of the flexible connector are respectively connected to the first outer shell and the second outer shell; The length of the portion of the FPC placed between the two FPC connection slots is greater than the length of the flexible connector.

7. A headphone system, characterized in that, The earphones include a charging case and a removable battery as described in any one of claims 1-6.

8. The headphone system according to claim 7, characterized in that, It also includes multiple backup batteries; The charging box has a battery compartment; The battery compartment can accommodate multiple of the spare batteries.

9. The headphone system according to claim 8, characterized in that, It also includes a display screen located on the charging case; The display screen is electrically connected to each of the backup batteries, and the display screen has a first display area, which can display the power information of each of the backup batteries.

10. The headphone system according to claim 9, characterized in that, The display screen has a second display area, which can display the degree of degradation of each of the backup batteries.