Earphone battery elastic contact quick release structure

Abstract

This invention belongs to the field of headphone technology, and specifically relates to a quick-release structure for a headphone battery with elastic contact. It includes: a sound-generating unit with a mounting groove containing a receiver, and at least two inductive elements; and a battery unit with a conductive plate located inside the battery unit. By placing the conductive plate inside the battery unit, leakage caused by contact between the battery electrodes and the external environment is prevented. When the battery unit needs to be placed on the sound-generating unit, the receiver contacts the conductive plate, thereby establishing circuit continuity. This allows for easy assembly and disassembly of the battery unit and the headphone's sound-generating unit. During assembly, simply placing the battery unit on the sound-generating unit allows for automatic alignment and circuit connection through physical contact, eliminating the need for soldering, ribbon cables, or connectors, significantly reducing the difficulty and cost of automated assembly.

Description

Technical Field

[0001] This invention belongs to the field of headphone technology, and specifically relates to a quick-release structure for elastic contact of headphone batteries. Background Technology

[0002] Traditional true wireless earbuds typically integrate the battery into the earbud housing, connecting it to the motherboard and driver unit via soldered wires or ribbon cables. This fixed connection method results in complex assembly processes, making fully automated production difficult. Furthermore, solder joints or ribbon cable interfaces are susceptible to damage from frequent vibrations or drops, leading to issues like cold solder joints or breakage. More importantly, because the battery and driver unit are integrated into a single package, once the battery ages or fails, the entire earbud, including the expensive driver unit, becomes unusable. This not only results in high maintenance costs for users but also creates electronic waste, contradicting current environmental and sustainable product design principles.

[0003] Furthermore, under the framework of the EU's new Battery Regulation, headphone battery design is facing unprecedented compliance challenges. According to the new EU regulations, all portable devices placed on the EU market must ensure that the battery can be easily removed and replaced by the user at any time during the product's lifespan, and cannot require the use of special tools.

[0004] The aforementioned regulatory requirements and industry pain points necessitate an urgent battery connection structure that can be easily disassembled and replaced by users at any time without the need for specialized tools, while still maintaining the aesthetics and practicality of the headphones. Summary of the Invention

[0005] To address the aforementioned issues, this paper presents a flexible contact quick-release structure for headphone batteries, which allows users to easily disassemble and replace the batteries at any time without the need for special tools, while maintaining the aesthetics and practicality of the headphones.

[0006] To achieve the above objectives, the technical solution of the present invention is as follows.

[0007] A quick-release structure for an earphone battery with elastic contact, characterized in that it comprises:

[0008] A sound-generating unit is provided with a mounting slot, a receiver is installed in the mounting slot, and an inductive element is provided in the receiver. At least two inductive elements are provided.

[0009] The battery unit has a conductive plate inside it to prevent leakage caused by the battery electrodes coming into contact with the outside. When the battery unit needs to be placed on the sound unit, the current collector contacts the conductive plate to make the circuit work. This allows the battery unit to be easily assembled and disassembled from the sound unit of the headphones. During assembly, the battery unit is simply placed on the sound unit, and the circuit is automatically aligned and made work by physical contact. There is no need for soldering, ribbon cables or connectors, which significantly reduces the difficulty and cost of automated assembly.

[0010] When the battery ages or is damaged, the old battery unit can be easily removed and replaced with a new one without discarding the entire headset, especially the expensive driver unit. This aligns with sustainable development and environmental protection principles and reduces long-term usage costs for users.

[0011] Furthermore, the inductive element of the receiver is a conductive spring. During the process of placing the battery cell into the mounting slot, the conductive spring is squeezed and deformed, and then bends and retracts into the receiver. When the battery cell is in place, the conductive spring resets under its own elastic force and then contacts the conductive plate inside the battery cell. A reliable electrical connection is achieved through the conductive spring at low cost.

[0012] Furthermore, the sensing element of the receiver is a spring contact. During the process of placing the battery cell into the mounting slot, the spring contact is compressed and shortened. After the battery cell is placed in place, the spring contact plate is reset under the action of the internal spring and contacts the conductive plate inside the battery cell, thereby realizing electrical connection. In miniaturized designs with frequent disassembly and assembly or limited space, the spring contact can provide more stable contact pressure and longer service life.

[0013] Furthermore, the battery unit is provided with a disassembly handle, and the sound-generating unit is provided with a handle position that matches the disassembly handle. By providing the disassembly handle and the corresponding handle position, the receiver is prevented from obstructing the disassembly of the battery unit when it is inserted into the battery unit and in contact with the conductive plate. The user can easily apply force to remove the battery unit from the mounting slot using the disassembly handle provided on the battery unit. The disassembly handle and the corresponding handle position form a foolproof design to prevent the battery unit from being installed backwards.

[0014] Furthermore, the disassembly handle is provided with bolt holes, and a fixing screw is screwed onto the handle. When the sound unit is in normal use, the fixing screw passes through the bolt holes to secure the battery unit in the mounting slot, preventing the battery unit from shaking in the mounting slot and causing abnormal noise, which would affect the user experience. At the same time, it also prevents shaking from causing repeated wear on the collector and conductive plate, which would affect the service life.

[0015] Furthermore, the battery unit has an arc-shaped surface, which is integrated with the shape of the sound-generating unit to better fit the ear and reduce discomfort when wearing it.

[0016] Furthermore, the battery unit consists of a battery cell, electrode plates, and a housing. The positive and negative terminals of the battery cell are each connected to an electrode plate, and the electrode plates are respectively connected to corresponding conductive plates. The housing provides protection for the electrode plates, battery cell, and corresponding conductive plates. The housing provides robust support for the fragile connection points of the battery cell and electrode plates, preventing internal connections from breaking due to vibration or drops during disassembly or use, thereby improving the overall durability of the earphone.

[0017] Furthermore, the battery unit also includes a power management chip, which integrates the power management function inside the battery unit, improving the charging and discharging safety of the battery and simplifying the design of the headphone motherboard. It eliminates the need to design an additional power management module on the headphone motherboard, reducing the overall development difficulty and improving product consistency and yield.

[0018] Furthermore, three inductive elements and three conductive plates are respectively provided. The power management chip is equipped with an NTC, which is connected to the corresponding conductive plate. The three inductive elements are electrically connected to the positive terminal, the negative terminal, and the NTC, respectively. Through the connection between the NTC and the conductive plate, the core temperature of the battery cell can be monitored in real time. This not only realizes over-temperature protection but also provides key data for accurate power calculation and battery health management.

[0019] Furthermore, the receiver and the sound-generating unit are detachably connected, so that if the receiver fails, it can be quickly restored to use by simply replacing the receiver.

[0020] The beneficial effects of this invention lie in its design of a purely physical contact quick-release structure for the battery unit and the sound-generating unit. Instantaneous conductivity is achieved through conductive springs or spring contacts and an internal conductive plate, completely eliminating traditional soldering and wiring connections. This significantly reduces the difficulty and cost of automated assembly. When the battery ages, users can easily replace it using the foolproof design of the disassembly handle and handle position, without discarding the expensive sound-generating unit. This improves product sustainability while significantly reducing long-term maintenance costs.

[0021] Furthermore, this structure prevents shaking and noise, as well as contact wear, through fixing screws. The integrated curved surface design ensures wearing comfort, and the outer shell enhances the shock resistance and durability of the internal battery cells. The integrated power management chip and three-contact design not only simplify the development of the headphone motherboard and improve the overall yield rate, but also enable precise battery temperature monitoring, comprehensively improving the product's safety, modularity, and lifespan. Attached Figure Description

[0022] Figure 1 This is a state diagram of the battery unit of the present invention installed in the sound-generating unit.

[0023] Figure 2 This is a schematic diagram of the first structure of the sound-generating unit of the present invention.

[0024] Figure 3 This is a schematic diagram of the second structure of the sound-generating unit of the present invention.

[0025] Figure 4 This is a schematic diagram of the battery cell structure of the present invention.

[0026] Figure 5 This is a schematic diagram of the internal structure of the battery cell of the present invention.

[0027] Figure 6 This is a schematic diagram of the spring contact structure of the sound-generating unit of the present invention.

[0028] Figure label:

[0029] 1. Sound unit; 11. Mounting slot; 12. Hand grip; 121. Fixing screw;

[0030] 2. Battery unit; 21. Curved surface; 22. Conductive plate; 23. Disassembly handle; 24. Bolt hole;

[0031] 3. Receiving device; 31. Conductive spring; 32. Spring contact;

[0032] 201. Battery cell; 202. Electrode sheet; 203. Power management chip; 204. Housing. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0034] Example 1, see Figure 1-5 This embodiment provides a quick-release structure for an earphone battery with elastic contact, including:

[0035] The sound-generating unit 1 has a mounting slot 11, a receiver 3 is installed in the mounting slot 11, and an inductive element is installed in the receiver. There are at least two inductive elements.

[0036] Battery unit 2 has a conductive plate 22 located inside it. By placing the conductive plate 22 inside the battery unit 2, leakage caused by the battery electrodes coming into contact with the outside is prevented. When the battery unit 2 needs to be placed on the sound unit 1, the circuit is made through contact between the receiver 3 and the conductive plate 22. This allows the battery unit 2 and the sound unit 1 of the earphone to be easily assembled and disassembled. During assembly, the battery unit 2 is simply placed on the sound unit 1, and the circuit is automatically aligned and made on by physical contact. There is no need for soldering, ribbon cables or connectors, which significantly reduces the difficulty and cost of automated assembly.

[0037] When the battery ages or is damaged, the old battery unit 2 can be easily removed and replaced with a new battery unit 2 without discarding the entire headset, especially the expensive sound unit 1. This aligns with sustainable development and environmental protection principles and reduces the long-term usage costs for users.

[0038] The inductive element of the receiver 3 is a conductive spring 31. During the process of placing the battery unit 2 into the mounting slot 11, the conductive spring 31 is compressed and deformed, and then bends and retracts into the receiver 3. After the battery unit 2 is placed in place, the conductive spring 31 returns to its original position under its own elastic force. It then contacts the conductive plate 22 inside the battery unit 2, and a reliable electrical connection is achieved through the conductive spring 31 with low-cost production.

[0039] The battery unit 2 is provided with a disassembly handle 23, and the sound-generating unit 1 is provided with a handle position 12 that matches the disassembly handle 23. By setting the disassembly handle 23 and the corresponding handle position 12, the receiver 3 is prevented from obstructing the disassembly of the battery unit 2 when it is inserted into the battery unit 2 and comes into contact with the conductive plate 22. The user can easily apply force to remove the battery unit 2 from the mounting slot 11 by using the disassembly handle 23 on the battery unit 2. The disassembly handle 23 and the corresponding handle position 12 form a foolproof design to prevent the battery unit 2 from being installed backwards.

[0040] The disassembly handle 23 is provided with bolt holes 24, and the handle position 12 is screwed with fixing screws 121. When the sound unit 1 is in normal use, the battery unit 2 is fastened in the mounting groove 11 by passing the fixing screws 121 through the bolt holes 24. This prevents the battery unit 2 from shaking in the mounting groove 11 and causing abnormal noise, which would affect the user experience. At the same time, it also prevents the shaking from causing repeated wear between the receiver 3 and the conductive plate 22, which would affect the service life.

[0041] The battery unit 2 has an arc-shaped surface 21, which is integrated with the shape of the sound unit 1 to better fit the ear and reduce discomfort when wearing it.

[0042] The battery unit 2 consists of a battery cell 201, electrode plates 202, and a housing 204. The positive and negative terminals of the battery cell 201 are respectively connected to an electrode plate 202, and the electrode plates 202 are respectively connected to the corresponding conductive plates 22. The housing 204 provides protection for the electrode plates 202, the battery cell 201, and the corresponding conductive plates 22. The housing 204 provides a sturdy support for the connection between the fragile battery cell 201 and the electrode plates 202, preventing the internal connection from breaking due to vibration or drops during disassembly or use, thereby improving the durability of the entire earphone.

[0043] Battery unit 2 also includes a power management chip 203, which integrates power management functions into battery unit 2, improving the safety of battery charging and discharging, and simplifying the design of the headphone motherboard. It eliminates the need to design an additional power management module on the headphone motherboard, reducing the difficulty of overall development and improving product consistency and yield.

[0044] Three inductors and three conductive plates 22 are respectively provided. The power management chip 203 is equipped with an NTC. The NTC is connected to the corresponding conductive plate 22. The three inductors are electrically connected to the positive terminal, the negative terminal and the NTC respectively. Through the connection of the NTC and the conductive plate 22, the core temperature of the cell 201 can be monitored in real time. This not only realizes over-temperature protection, but also provides key data for accurate power calculation and battery health management.

[0045] The receiver 3 and the sound-generating unit 1 are detachably connected. If the receiver 3 malfunctions, it can be quickly restored to use by simply replacing the receiver 3.

[0046] Example 2, see Figure 6 Based on Example 1, the inductive element of the receiver 3 is replaced by a spring contact 32 instead of a conductive spring 31. During the process of placing the battery unit 2 into the mounting slot 11, the spring contact 32 is compressed and shortened. After the battery unit 2 is placed in place, the spring contact 32 is reset under the action of the internal spring and contacts the conductive plate 22 inside the battery unit 2, thereby realizing electrical connection. In miniaturized designs with frequent disassembly and assembly or limited space, the spring contact 32 can provide more stable contact pressure and longer service life.

[0047] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A quick-release structure for elastic contact of an earphone battery, characterized in that, include: A sound-generating unit is provided with a mounting slot, a receiver is installed in the mounting slot, and an inductive element is provided in the receiver. At least two inductive elements are provided. The battery unit has a conductive plate inside it. By placing the conductive plate inside the battery unit, leakage caused by the battery electrodes coming into contact with the outside is prevented. When the battery unit needs to be placed on the sound-generating unit, the circuit is made conductive by the contactor with the conductive plate.

2. The headphone battery elastic contact quick-release structure according to claim 1, characterized in that, The inductive element of the receiver is a conductive spring.

3. The headphone battery elastic contact quick-release structure according to claim 1, characterized in that, The inductive element of the receiver is a spring contact.

4. The headphone battery elastic contact quick-release structure according to claim 1, characterized in that, The battery unit is provided with a disassembly handle, and the sound-generating unit is provided with a handle position that matches the disassembly handle.

5. The headphone battery elastic contact quick-release structure according to claim 4, characterized in that, The disassembly handle is provided with bolt holes, and a fixing screw is screwed onto the handle.

6. The headphone battery elastic contact quick-release structure according to claim 5, characterized in that, The battery cell has an arc-shaped surface.

7. The headphone battery elastic contact quick-release structure according to claim 6, characterized in that, The battery unit consists of a cell, electrode plates, and a casing. The positive and negative terminals of the cell are each connected to an electrode plate, and the electrode plates are each connected to a corresponding conductive plate. The casing provides protection for the electrode plates, the cell, and the corresponding conductive plates.

8. The headphone battery elastic contact quick-release structure according to claim 7, characterized in that, The battery unit also includes a power management chip.

9. The headphone battery elastic contact quick-release structure according to claim 8, characterized in that, The aforementioned inductor and conductive plate are respectively provided with three. The power management chip is provided with an NTC. The NTC is connected to the corresponding conductive plate. The three inductors are electrically connected to the positive terminal, negative terminal and NTC respectively, and are connected to the conductive plate through the NTC.

10. A quick-release structure for an earphone battery elastic contact according to any one of claims 1-3, characterized in that, The receiver and the sound-generating unit are detachably connected.

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