Electric aircraft high-temperature auxiliary cooling device and method and electric aircraft

By using high-pressure, low-temperature gas storage and piping systems in electric aircraft, combined with radiator air inlet sensors and dampers, efficient cooling is achieved in high-temperature environments, solving the weight and volume problems of the electric aircraft cooling system, ensuring the thermal management performance and safety of the electric aircraft, and meeting the lightweight design requirements of electric aircraft.

CN120681340APending Publication Date: 2025-09-23COMAC ERA (SHANGHAI) AVIATION CO LTD
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Patent Information

Application Number
CN202511135079.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-14
Publication Date
2025-09-23

AI Technical Summary

Technical Problem

The cooling system's heat dissipation capacity of pure electric multi-seat passenger aircraft decreases in high-temperature environments, which may cause the performance of the electric propulsion and power battery systems to decline or stop. The compressor refrigeration unit in existing technology is heavy and complex, making it difficult to meet the design requirements of weight-sensitive aircraft.

Method used

By adopting a high-pressure low-temperature gas storage device and a simple piping system, the temperature of the electric gas storage device and the radiator air inlet channel is realized through the cooperation of the first air inlet channel, the second air inlet channel and the main air channel, and the radiator air inlet sensor is used for monitoring, thereby providing an electric aircraft high-temperature auxiliary cooling device. By adopting the temperature of the first air inlet channel, the second air inlet channel, the main air channel, the high-pressure low-temperature gas storage device and the radiator air inlet sensor, a high-temperature auxiliary cooling device for electric aircraft is provided, including the first air inlet channel, the second air inlet channel, the main air channel, the high-pressure low-temperature gas storage device and the radiator air inlet sensor, the high-pressure low-temperature gas storage device and the radiator air inlet sensor are controlled in a linkage manner to realize the precise supply of low-temperature gas and the dynamic adjustment of the ambient temperature.

Benefits of technology

Improve the heat dissipation capacity of the cooling system in high-temperature environments, ensure the thermal management performance of electric aircraft, reduce weight and volume, and prevent ambient heat from invading the power system. It is suitable for the weight-sensitive design of electric aircraft, has a simple structure and is easy to replace, ensuring the stability and safety of the thermal management system of electric aircraft.

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Abstract

The invention relates to an electric aircraft high-temperature auxiliary cooling device and method and an electric aircraft. The first end of the main air passage is communicated with a to-be-cooled heat exchange target of the electric aircraft; the second end of the main air channel communicates with the first air inlet channel and the second air inlet channel. A gas outlet of the high-pressure low-temperature gas storage device communicates with the main gas channel through a second gas inlet channel, and the high-pressure low-temperature gas storage device is configured to release low-temperature gas with the temperature lower than the preset temperature value and make contact with an electric aircraft heat exchange target through the main gas channel. The radiator air inlet sensor is arranged at any one of the first end and the first air inlet channel and connected with the high-pressure low-temperature gas storage device. The cooling performance of the heat exchange target of the electric aircraft is ensured, and the heat management performance of a power system is always in a good state; a compressor refrigerating unit which is complex in structure, large in size and heavy in weight does not need to be adopted, and airflow entering the cooling system can be always in a low-temperature state only by matching the high-pressure low-temperature gas storage device with a pipeline.
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