摘要：【中文】本发明公开了一种新型广播电视大功率数字发射机浸没式高效油冷散热装置，包括功率放大单元、油冷机柜、热交换器、水塔散热器和风冷散热器，油冷机柜内盛装有冷却油，功率放大单元设在油冷机柜内并浸没在冷却油里，油冷机柜设有进油口和出油口；出油口分别连接有热交换器和风冷散热器，热交换器连接有水塔散热器，风冷散热器和热交换器分别与进油口连接，热交换器连接有水塔散热器，风冷散热器和热交换器与油冷机柜形成并联回路。功率放大单元直接将热量传递给冷却油，冷却油吸收热量通过热交换器或风冷散热器进行热交换，流入油冷机柜内的冷却油保持在较低范围内，从而使油冷机柜内的功率放大单元的工作温度恒定，达到整体高效散热的效果。 【EN】The invention discloses a novel immersed high-efficiency oil-cooling heat dissipation device for a high-power digital transmitter of a broadcast television, which comprises a power amplification unit, an oil-cooling cabinet, a heat exchanger, a water tower radiator and an air-cooling radiator, wherein cooling oil is contained in the oil-cooling cabinet; the oil outlet is connected with a heat exchanger and an air-cooled radiator respectively, the heat exchanger is connected with a water tower radiator, the air-cooled radiator and the heat exchanger are connected with the oil inlet respectively, the heat exchanger is connected with the water tower radiator, and the air-cooled radiator and the heat exchanger form a parallel loop with the oil-cooled cabinet. The power amplification unit directly transmits heat to cooling oil, the cooling oil absorbs the heat and carries out heat exchange through a heat exchanger or an air-cooled radiator, and the cooling oil flowing into the oil-cooled cabinet is kept in a lower range, so that the working temperature of the power amplification unit in the oil-cooled cabinet is constant, and the effect of overall efficient heat dissipation is achieved.