External heat dissipation device for aircraft

By designing external heat dissipation equipment and using a cooler and a cool air pressurization device to cool the battery compartment of the electric aircraft, the problem of rapid battery overheating was solved, achieving rapid cooling and improving flight efficiency.

WO2026153013A1PCT designated stage Publication Date: 2026-07-23AUTOFLIGHT (KUNSHAN) CO LTD
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
AUTOFLIGHT (KUNSHAN) CO LTD
Filing Date
2025-12-18
Publication Date
2026-07-23

AI Technical Summary

Technical Problem

The batteries of electric aircraft heat up rapidly during flight and charging, and the natural cooling rate is slow, especially in summer, which affects flight efficiency and damages the batteries. Existing water-cooling systems have been reduced in size due to their heavy weight, which increases safety risks.

Method used

Design an external heat dissipation device for an aircraft, including a cooler and a cool air pressurization device, which is connected to the battery compartment through a heat dissipation channel. It uses cooling fluid to dissipate heat from the inside of the battery compartment and adopts a wind-cooling method to quickly cool down.

Benefits of technology

It enables the battery to cool to a safe takeoff temperature in a short time, increasing the number of flights and utilization rate. The equipment is small in size, easy to move, simple to operate, and has low maintenance costs.

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Abstract

The present application relates to the technical field of aircraft heat dissipation, and discloses an external heat dissipation device for an aircraft. The external heat dissipation device for the aircraft in the present application is applied to an electric aircraft. The electric aircraft comprises a battery compartment. The battery compartment internally comprises a plurality of heat dissipation channels and a plurality of openings in communication with the heat dissipation channels. The heat dissipation device can be in communication with at least a portion of the plurality of openings to introduce cooling fluid into the battery compartment through the openings, thereby dissipating heat from the interior of the battery compartment. The external heat dissipation device for the aircraft in the present application enables a battery to be cooled to a safe take-off temperature in a short time, thereby increasing the number of flights and increasing utilization.
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