Small hydrogen liquefaction device

The utility model provides a small-sized hydrogen liquefaction device, and particularly relates to the technical field of low-temperature liquefaction, the small-sized hydrogen liquefaction device comprises a heat exchange unit, a storage unit and a compression refrigeration unit, the heat exchange unit comprises a heat exchanger, and the heat exchanger comprises a first heat exchanger and a second heat exchanger; the compression refrigeration unit comprises a compressor and a first refrigerator; the storage unit comprises a liquid hydrogen storage tank; the outlet end of the compressor is sequentially connected with the inlet ends of the first heat exchanger, the first refrigerating machine, the second heat exchanger and the liquid hydrogen storage tank, and the outlet end of the liquid hydrogen storage tank is sequentially connected with the second heat exchanger and the first heat exchanger and is connected with the inlet end of the compressor to form a loop. According to the hydrogen liquefying device, hy