Vortex generator, battery heat management device, battery pack and electric equipment

The invention relates to the technical field of batteries, and provides a vortex generator, a battery thermal management device, a battery pack and electric equipment.The vortex generator comprises a connecting part and a deformation part, the deformation part is connected with the connecting part, the deformation part comprises a turbulent flow body extending outwards from at least one side of the connecting part, the battery pack comprises a lower shell and a battery cell module, at least the turbulent flow body is made of memory metal, and the turbulent flow body can be switched from a first shape to a second shape at the deformation temperature of the memory metal so as to form vortexes with different strengths for the fluid. According to the vortex generators, the shapes of the vortex generators can be spontaneously adjusted according to different temperatures, so that the required heat exchange intensity matched with the current temperature is formed, and fluid can be subjected to more intense heat exchange on the whole flow channel through the combination of the multiple vortex generators; therefore, the battery heat management device can control the temperature of each area of the battery cell module within the balance range.