Runner structure, cooling plate, battery module, battery pack and automobile

The utility model belongs to the technical field of heat exchange cooling, and provides a flow channel structure, a cooling plate, a battery module, a battery pack and an automobile, the flow channel structure mainly comprises a liquid inlet main channel and a liquid outlet main channel which are arranged in parallel, and the liquid inlet main channel is provided with a plurality of branch flow channels facing the liquid outlet main channel; a plurality of flow collecting channels are arranged on the liquid outlet main channel towards the liquid inlet main channel, and the sub-channels are communicated with the flow collecting channels in a one-to-one correspondence manner; a preset distance exists between the branch flow channel and the flow collecting channel which are correspondingly communicated, a bent section is arranged at the tail end of the branch flow channel towards the flow collecting channel, and the water inlet end of the flow collecting channel and the water outlet end of the bent section are a