Battery cooling system for energy vehicle

A battery cooling system for energy vehicle comprises a shield boxes (1) with a plurality of batteries (2) installed, wherein an inner wall of the shield box (1) is provided with a condenser pipe (3) filled with coolant, a cylinder (4) rotatably connecting with an inner bottom of the shield box (1), an upper end of the cylinder (4) being provided with a circular groove (5) arranged coaxially with the cylinder (4), the circular groove (5) being sealed and rotated to connect with a circular block (6), a water inlet end and a water outlet end of the condenser pipe (3) being both sealed and penetrated through the circular block (6), a heat insulation plate (7) being arranged in the cylinder (4), the heat insulation plate (7) dividing the cylinder (4) into two insulation chambers of the same size, an upper end of the cylinder (4) being provided with two through holes (8) communicating with the circular groove (5), the two through holes (8) being respectively matched with the water inlet end and the water outlet end of the condenser pipe (3), a driving device for driving the cylinder (4) to rotate being installed in the cylinder (4);

• the driving device comprises two sliding plugs (9) respectively sealed and slidingly connected in the insulation chambers on both sides of the heat insulation plate (7), an enclosed space formed by the sliding plug (9), the cylinder (4), and the heat insulation plate (7) being filled with a thermal expansion liquid, an iron block (10) being embedded on a side wall of the sliding plug (9), a permanent magnet (11) being installed on a side wall of the shield box (1), two opposite side walls of the shield box (1) being respectively provided with an air inlet hole (12) and an air outlet hole (16), the cylinder (4) and the sliding plug (9) being made of copper material which has good thermal conductivity;
• an spoiler (13) made of iron is slidingly connected with each side of the heat insulation plate (7), the spoiler (13) being elastically connected to an inner bottom of the cylinder (4) by a spring (15), an electromagnet (14) being installed on a side wall of the shield box (1), the electromagnet (14) being coupled in charging circuit of the battery (2).