Earphone wireless charging module capable of realizing bidirectional data communication

Abstract

The utility model discloses a can realize earphone wireless charging module of two -way data communication, including charging storehouse casing, earphone containing cavity, fixed magnetic ring, bottom plate, wireless transmitting module, earphone receiving module, the earphone containing cavity is established at the top of charging storehouse casing, the fixed magnetic ring fixedly connected in earphone containing cavity inboard, the bottom plate fixedly connected at the bottom of charging storehouse casing, wireless transmitting module fixedly connected in charging storehouse casing inside, earphone receiving module places in earphone containing cavity inside, and the integrated design of flexible circuit board and decoding chip realizes high -speed data transmission in limited space, and the security and functionality are taken into account.

Description

Technical Field

[0001] This utility model relates to a wireless charging module for headphones that enables bidirectional data communication. Background Technology

[0002] TWS / OWS wireless charging technology uses electromagnetic induction to achieve contactless power transfer, avoiding the corrosion problems of traditional metal contacts.

[0003] Existing wireless charging solutions have significant drawbacks: on the one hand, misalignment of the charging coils leads to low energy transfer efficiency and frequent charging interruptions; on the other hand, the lack of an effective data communication mechanism makes it impossible to monitor the earphone battery status in real time. When the battery overheats or short-circuits, heat is quickly conducted to the human body through the metal casing, posing a risk of burns. In addition, traditional solutions have not solved the problem of circuit corrosion caused by sweat seeping into the charging case, resulting in insufficient reliability in the long term. Utility Model Content

[0004] The purpose of this invention is to provide a wireless charging module for headphones that enables bidirectional data communication, so as to solve the above-mentioned technical problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A wireless charging module for earphones that enables bidirectional data communication includes a charging case shell, an earphone cavity, a positioning magnetic ring, a base plate, a wireless transmitting module, and an earphone receiving module. The charging case shell has an earphone cavity at its top, the positioning magnetic ring is fixedly connected to the inside of the earphone cavity, the base plate is fixedly connected to the bottom of the charging case shell, the wireless transmitting module is fixedly connected to the inside of the charging case shell, and the earphone receiving module is placed inside the earphone cavity.

[0007] Based on the above technical solution, the wireless transmission module includes a UART interface, a flexible circuit board, a decoding chip, and a transmission coil. The flexible circuit board is fixedly connected to the bottom of the UART interface, the decoding chip is fixedly connected to the center of the top of the flexible circuit board, and the transmission coil is fixedly connected to the bottom of the flexible circuit board.

[0008] Based on the above technical solution, the earphone receiving module includes an earphone shell, an earphone battery, a thermally conductive silicone pad, a receiving coil, and a micro-modulation circuit. The earphone battery is fixedly connected to the inside of the earphone shell, and a thermally conductive silicone pad is fixedly connected between the earphone battery and the receiving coil. The micro-modulation circuit is fixedly connected below the receiving coil.

[0009] Compared with the prior art, this utility model has the following advantages: This utility model completely solves the above problems through mechanical structural innovation: First, the coaxial design of the positioning magnetic ring and the transmitting coil improves the energy transmission efficiency, while the micro-modulation circuit transmits data back through the receiving coil to realize bidirectional monitoring of the charging status; Second, the thermally conductive silicone pad is tightly attached to the earphone battery and the receiving coil, which evenly diffuses the heat to the earphone shell and eliminates the risk of burns; In addition, the fully enclosed charging case shell with a hydrophobic coating completely isolates liquid penetration; Finally, the integrated design of the flexible circuit board and the decoding chip realizes high-speed data transmission in a limited space, taking into account both safety and functionality. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the appearance and structure of this utility model.

[0011] Figure 2 This is a schematic diagram of the wireless transmission module structure of this utility model.

[0012] Figure 3 This is a schematic diagram of the headphone receiver module structure of this utility model.

[0013] In the diagram: 1. Charging case shell, 2. Earphone housing, 3. Positioning magnetic ring, 4. Base plate, 5. Wireless transmitter module, 6. Earphone receiver module, 7. UART interface, 8. Flexible circuit board, 9. Decoding chip, 10. Transmitting coil, 11. Earphone shell, 12. Earphone battery, 13. Thermal conductive silicone pad, 14. Receiving coil, 15. Micro modulation circuit. Detailed Implementation

[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0015] like Figure 1-3 As shown, a wireless charging module for earphones capable of bidirectional data communication includes a charging case housing 1, an earphone receiving cavity 2, a positioning magnetic ring 3, a base plate 4, a wireless transmitting module 5, and an earphone receiving module 6. The charging case housing 1 has an earphone receiving cavity 2 at its top. The positioning magnetic ring 3 is fixedly connected to the inside of the earphone receiving cavity 2. The base plate 4 is fixedly connected to the bottom of the charging case housing 1. The wireless transmitting module 5 is fixedly connected to the inside of the charging case housing 1. The earphone receiving module 6 is placed inside the earphone receiving cavity 2.

[0016] The wireless transmission module 5 includes a UART interface 7, a flexible circuit board 8, a decoding chip 9, and a transmission coil 10. The flexible circuit board 8 is fixedly connected to the bottom of the tail end of the UART interface 7, the decoding chip 9 is fixedly connected to the top center of the flexible circuit board 8, and the transmission coil 10 is fixedly connected to the tail end of the flexible circuit board 8.

[0017] The headphone receiving module 6 includes a headphone shell 11, a headphone battery 12, a thermally conductive silicone pad 13, a receiving coil 14, and a micro-modulation circuit 15. The headphone battery 12 is fixedly connected to the inside of the headphone shell 11. The thermally conductive silicone pad 13 is fixedly connected between the headphone battery 12 and the receiving coil 14. The micro-modulation circuit 15 is fixedly connected below the receiving coil 14.

[0018] The working principle of this utility model is as follows: When the earphone is placed into the receiving cavity (2), the positioning magnetic ring (3) attracts the metal parts of the earphone, so that the receiving coil (14) and the transmitting coil (10) are precisely coaxially aligned; then, the transmitting coil (10) emits electromagnetic waves, and the receiving coil (14) converts the energy into current to charge the earphone battery (12). At the same time, the micro-modulation circuit (15) superimposes the battery voltage / temperature data onto the electromagnetic wave back through load modulation; then, the decoding chip (9) demodulates the data from the transmitting coil (10) end and transmits it to the UART interface (7) via the flexible circuit board (8) to report to the main controller; if an abnormality is detected, the thermal conductive silicone pad (13) directs the heat to the earphone shell (11) for heat dissipation; after charging is completed, the main controller sends a sleep command through the UART interface (7), and the transmitting coil (10) stops working.

[0019] The above description is a preferred embodiment of the present utility model. For those skilled in the art, any changes, modifications, substitutions and variations made to the implementation methods without departing from the principles and spirit of the present utility model, based on the teachings of the present utility model, still fall within the protection scope of the present utility model.

Claims

1. A wireless charging module for headphones capable of bidirectional data communication, comprising a charging case housing (1), a headphone receiving cavity (2), a positioning magnetic ring (3), a base plate (4), a wireless transmitting module (5), and a headphone receiving module (6), characterized in that: The charging case housing (1) has an earphone receiving cavity (2) at the top. The positioning magnetic ring (3) is fixedly connected to the inside of the earphone receiving cavity (2). The bottom plate (4) is fixedly connected to the bottom of the charging case housing (1). The wireless transmitting module (5) is fixedly connected inside the charging case housing (1). The earphone receiving module (6) is placed inside the earphone receiving cavity (2).

2. The earphone wireless charging module capable of realizing bidirectional data communication according to claim 1, characterized in that: The wireless transmission module (5) includes a UART interface (7), a flexible circuit board (8), a decoding chip (9), and a transmission coil (10). The UART interface (7) is fixedly connected to the bottom of the tail end of the flexible circuit board (8), the decoding chip (9) is fixedly connected to the top center of the flexible circuit board (8), and the transmission coil (10) is fixedly connected to the tail end of the flexible circuit board (8).

3. The earphone wireless charging module capable of bidirectional data communication according to claim 1, characterized in that: The headphone receiving module (6) includes a headphone shell (11), a headphone battery (12), a thermally conductive silicone pad (13), a receiving coil (14), and a micro-modulation circuit (15). The headphone battery (12) is fixedly connected to the inside of the headphone shell (11). The thermally conductive silicone pad (13) is fixedly connected between the headphone battery (12) and the receiving coil (14). The micro-modulation circuit (15) is fixedly connected below the receiving coil (14).

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