Near-azeotropic phase change cooling liquid and application thereof in electronic equipment

The invention discloses a near-azeotropic phase change cooling liquid and an application of the near-azeotropic phase change cooling liquid in electronic equipment, and the near-azeotropic phase change cooling liquid contains perfluoro-2, 3-dimethyl pentene. According to the near-azeotropic phase-change cooling liquid, when the working pressure is 68-137kPa and the working temperature is 39.3-60.9 DEG C, the temperature slip is smaller than 1 DEG C, in the phase change process, the gas-liquid phase component change is small, the component change caused by gas escape is weak, and liquid supplementing is convenient when the near-azeotropic phase-change cooling liquid is used as the cooling liquid of a cooling system. 本发明公开了一种近共沸相变冷却液及其在电子设备中的应用，所述近共沸相变冷却液包含全氟2,3-二甲基戊烯。本发明所述近共沸相变冷却液在工作压力为68～137kPa、工作温度为39.3～60.9℃时，温度滑移小于1℃，在相变过程中，气液相组分变化小，气体逸出导致的组分变化较弱，作为冷却系统的冷却液使用时补液方便。