An airborne fiber laser cooling module and a fiber laser having the same

By combining passive and active cooling with heat pipes in airborne fiber lasers, the problems of complex and easily damaged water cooling technology are solved, achieving efficient and lightweight cooling that is suitable for airborne fiber lasers.

CN115764521BActive Publication Date: 2026-06-09CHINESE PEOPLES LIBERATION ARMY UNIT 93236
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINESE PEOPLES LIBERATION ARMY UNIT 93236
Filing Date
2022-11-09
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing water-cooling technologies are complex and prone to damaging fiber lasers, making it difficult to meet the cooling requirements of airborne fiber lasers, especially under the constraints of payload weight and structure on fixed-wing and rotary-wing UAVs.

Method used

By combining passive cooling with external flow cooling, the optical fiber is automatically and actively cooled by setting optical fiber mounting slots, heat dissipation cavities and capillary structure layers on the heat dissipation plate, combined with a lightweight aluminum support structure. This simplifies the structure and reduces power requirements.

Benefits of technology

It improves cooling efficiency, reduces the weight and energy consumption of the cooling structure, avoids fiber laser failure caused by liquid leakage, and is suitable for the cooling needs of airborne high-power fiber lasers.

✦ Generated by Eureka AI based on patent content.

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    Figure CN115764521B_ABST
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Abstract

The present application relates to the technical field of fiber laser cooling, and provides an airborne fiber laser cooling module and a fiber laser with the module, which comprises a heat dissipation plate and a cover plate, two support plates are arranged in parallel on the lower surface of the heat dissipation plate, and a plurality of flow-around columns are arranged between the two support plates, a fiber installation groove is arranged on the upper surface of the heat dissipation plate, the leading end and the trailing end of the fiber installation groove penetrate the side wall of the heat dissipation plate and form a fiber inlet and a fiber outlet respectively, a heat dissipation cavity is arranged between the upper and lower surfaces of the heat dissipation plate, a capillary structure layer is arranged on the inner wall of the heat dissipation cavity, and the heat dissipation cavity is filled with a liquid working medium. The present application can realize the ingenious combination of the passive cooling of the dissipation heat pipe and the active cooling of the external flow, improve the cooling efficiency, enhance the cooling effect, save power and weight, solve the technical problems that the existing water cooling technology needs complex auxiliary devices and additional power to maintain the liquid flow and working medium circulation, and increase the load burden of the aircraft, and the leakage of the liquid may cause the failure of the fiber laser.
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