Battery, pipeline assembly and electric device

The utility model discloses a battery, a pipeline assembly and an electric device. The battery comprises a battery box body forming an accommodating space; the battery monomers are arranged in the accommodating space; the heat exchange mechanism is arranged in the accommodating space and is used for realizing heat exchange between the battery monomers and the external environment; the pipeline assembly comprises a pipe body which communicates with the heat exchange cavity of the heat exchange mechanism and is used for conveying a heat exchange medium of the heat exchange cavity; a first through hole is formed in the connector, and one end of the pipe body penetrates through the first through hole to be communicated with the heat exchange cavity or the drainage opening of the battery box body; a sealing face is formed on the outer wall of the end, covers the inner wall of the first through hole and is connected with the interior of the first through hole in a sealed mode. The reliability of the pipeline assembly can be improved, and the influence of precipitates on the heat exchange medium can be reduced or eliminated, so that the heat exchange efficiency of the heat exchange medium is improved, and the reliability of the battery is improved.