Airborne liquid cooling system based on electronic fluorinated liquid

By using electronic fluoride liquid in the onboard liquid-cooled system and setting up an expansion chamber, efficient heat dissipation of the onboard radio frequency system under low temperature environments is achieved, low flow and pulsation problems are solved, and the reliability of the equipment is improved.

CN119730156APending Publication Date: 2025-03-2810TH RES INST OF CETC
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Patent Information

Application Number
CN202411809381.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-10
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

The existing onboard liquid cooling system has a low flow rate and pulsation problem due to the increasing viscosity of the cooling medium in a low temperature environment, which affects the reliability and heat dissipation effect of the equipment.

Method used

Electronic fluoride liquid is used as the cooling medium, and an expansion chamber is set up in the flow delivery unit module, so that the electronic fluoride liquid can absorb heat near the heat source and become a single-phase flow with a higher temperature than the inlet or a two-phase air-liquid boiling flow, and use forced convection cooling to achieve heat dissipation of the airborne radio frequency system.

Benefits of technology

It effectively avoids the low flow and pulsation problems of liquid cooling system in low temperature environments, ensures the heat dissipation effect of high-power radio frequency modules/equipment, and improves the reliability of airborne electronic equipment.

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Abstract

The invention discloses an airborne liquid cooling system based on electronic fluorination liquid, which comprises a flow conveying module and a flow exchange module which are mutually independent, and is characterized in that the flow conveying module and the flow exchange module form a liquid cooling circulation loop with a load heat management device through pipelines, and the liquid cooling circulation loop is filled with the electronic fluorination liquid; wherein the flow conveying module comprises a structural frame and a pump arranged in the structural frame, a shunting box and a combiner box are further installed on one side of the structural frame, the outlet end of the shunting box is connected with the liquid cooling inlet end of the load, and the inlet end of the combiner box is connected with the liquid cooling outlet end of the load; the outlet end of the combiner box is connected with the inlet end of the flow exchange module, the outlet end of the flow exchange module is connected with the pump, and the structural frame is further provided with an expansion cavity communicated with the combiner box. According to the invention, the heat dissipation effect of airborne platform equipment can be guaranteed, the problem of flow pulsation caused by viscosity increase of a liquid cooling medium at a low temperature can be avoided, and a liquid cooling backflow flow field is stable.
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