本专利所介绍的是焦耳-汤姆逊型致冷装置,它的散热器有两条通道,由温度低于转换温度的高压冷源产生的致冷气体通过其中一条通道输送到位于散热器冷端附近的膨胀喷咀,而从那里低压气体通过另一通道返回,通过膨胀产生冷却并在容器中形成液体致冷剂。 This patent describes the Joule-Thomson type refrigeration unit, which has two passages in the radiator, and the refrigerant gas generated by the high-pressure cooling source whose temperature is lower than the transition temperature is sent through one of the passages to the cold end of the radiator Near the expansion nozzle, from where the low-pressure gas returns through the other passage, is cooled by expansion and forms a liquid refrigerant in the container.