Moving coil and flat plate combined earphone welding equipment and method based on high-temperature shielding

By adopting infrared continuous laser and high-temperature shielding technology in the dynamic coil flat-panel combined headphone welding equipment, combined with dynamic adjustment of temperature sensors and control units, the problem of power instability in pulsed laser welding technology is solved, and the temperature stability of the welding process and the high quality of the welded joints are achieved.

CN119703371AActive Publication Date: 2025-03-28HIFIMAN TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202510196062.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-21
Publication Date
2025-03-28
Estimated Expiration
2045-02-21

AI Technical Summary

Technical Problem

The existing pulse laser welding technology is difficult to ensure precise control of the welding process due to instability in welding dynamic coil flat plate combination earphones, resulting in high welding defects and high operational complexity.

Method used

The dynamic coil flat-combined headphone welding equipment based on high-temperature shielding is adopted, and infrared continuous laser is used for welding. High-temperature shielding and temperature control are realized through masks and temperature sensors. The control unit dynamically adjusts the laser movement speed according to the temperature data to ensure the temperature stability of the welding area.

Benefits of technology

The temperature stability during welding process and the quality of the welded joints are improved, the occurrence of welding defects is reduced, and the simplicity of operation and production efficiency are improved.

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Abstract

The invention relates to a moving coil and flat plate combined earphone welding device and method based on high-temperature shielding. Accurate welding alignment is achieved through temperature detection. According to the equipment, the temperature distribution of a welding area is monitored through the light holes and the temperature sensors on the mask plate, and accurate alignment of welding points is ensured. Data of the temperature sensor are fed back to the control unit, the moving speed and power of the laser source are dynamically adjusted to adapt to temperature changes in the welding process, and the welding quality is guaranteed. The temperature feedback mechanism not only improves the welding precision, but also improves the yield, avoids material thermal damage and welding defects, and is of great importance for improving the acoustic performance and durability of the earphone. According to the welding equipment, an innovative solution is provided for manufacturing of the moving coil and flat plate combined earphone with high precision, high efficiency and cost effectiveness.
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