Cold storage device and refrigerating system

The utility model provides a cold accumulation device and a refrigerating system, relates to the technical field of cold energy storage, and provides a cold accumulation device with a novel structure, which comprises a shell and a cold accumulation body, a refrigerant liquid inlet pipe is arranged at the top of the shell, the cold accumulation body is arranged in the shell, a cold carrying working medium pipeline is arranged in the cold accumulation body, and a refrigerant liquid outlet pipe is arranged at the top of the shell. The two ends of the cold-carrying working medium pipeline extend out of the shell respectively; a liquid cavity is formed in the circumferential inner side face of the shell and the cold storage body, a refrigerant liquid outlet pipe is arranged on the shell, and the refrigerant liquid outlet pipe communicates with the liquid cavity so that cold can be conveniently stored. A refrigerating system is provided, and when the system continues to operate in the off-peak electricity stage, a