The proper thermal management is crucial in most modern electronic devices in order to assure their reliable and efficient operation. The paper presents a cooling device which consists of a loudspeaker-driven synthetic jet actuator with integrated radial heat sink. A total of eleven different geometric configurations with various numbers of orifices and orifice diameters were investigated. For all studied geometries the resonance frequency was experimentally determined. The most of the cooling device characteristics were measured at the loudspeaker resonance frequency. The radial heat sink with heat transfer area of 0.1 m² was used. The thermal resistance of the heat sink without the synthetic jet actuator was equal to 1.4 K/W, while the same heat sink cooled with the synthetic jet was found to have a thermal resistance of 0.19 K/W. The cooling device is able to dissipate up to 282 W of thermal power consuming merely 7 W to drive the synthetic jet actuator. The sound pressure level generated by the device was measured and correlated with momentum velocity, furthermore the method for noise reduction was proposed.

在大多数现代电子设备中，适当的热管理至关重要，以确保其可靠和高效的运行。本文提出了一种冷却装置，它由带有集成径向散热器的扬声器驱动的合成射流致动器组成。研究了总共十一种具有不同数量的孔口和孔口直径的不同几何构造。对于所有研究的几何形状，共振频率是通过实验确定的。大多数冷却设备特性是在扬声器共振频率下测量的。传热面积为 0.1 m ²的径向散热器被使用。没有合成射流致动器的散热器的热阻等于 1.4 K/W，而使用合成射流冷却的相同散热器的热阻为 0.19 K/W。冷却装置能够耗散高达 282 W 的热功率，仅消耗 7 W 来驱动合成射流致动器。测量装置产生的声压级并与动量速度相关联，并提出了降噪方法。