Heat dissipation and pressure relief mechanism of battery pack

The utility model relates to a heat dissipation and pressure relief mechanism of a battery pack. The heat dissipation and pressure relief mechanism comprises battery cells and a battery shell, a handle seat is arranged on the surface of the battery shell, and a pressure relief through hole is formed in one side of the handle seat; a pressure relief one-way valve is arranged in the pressure relief through hole; and a heat conduction layer is arranged between the battery cell and the battery shell. A pressure relief through hole is formed in a handle seat, and a pressure relief one-way valve is arranged in the pressure relief through hole; due to the fact that the battery shell and the battery cell are located in the lower space of the handle base, when the internal pressure of the battery cell is too high, gas is transferred upwards, under the action of air pressure, the interior of the pressure relief one-way valve expands, the gas is exhausted upwards to achieve pressure relief, and at the moment, due to the