Immersed liquid-cooled battery box of semi-solid cylindrical battery or cylindrical battery

The invention provides an immersed liquid-cooled battery box of a semi-solid cylindrical battery or a cylindrical battery, which comprises a fast-assembly bottom plate mechanism, a cooling liquid circulating pipe is arranged on the upper surface of the fast-assembly bottom plate mechanism, a liquid inlet/outlet is fixedly connected to the surface of one side of the cooling liquid circulating pipe, and an upper sealing plate and a lower sealing plate are arranged on the surface of the upper end of the cooling liquid circulating pipe. A mounting battery is movably arranged on the inner surface of the cooling liquid circulating pipe, a flow guide plate is arranged on the inner surface of the cooling liquid circulating pipe, inner flow holes are formed in the surface of the flow guide plate according to the positions corresponding to the liquid inlet and outlet, and a battery mounting part is arranged on one side of the flow guide plate; the invention discloses a bottom plate liquid-cooled battery module, and aim