Battery module and battery pack

The utility model discloses a battery module and a battery pack, the battery module comprises a plurality of battery packs and a reinforcing body, and a cooling flow channel for a cooling medium to circulate is formed in the reinforcing body; the reinforcing body and the side surface of the battery pack form heat conduction through the cooling runner; and an adapter joint. The end plates and the side plates are internally provided with cooling flow channels which are communicated through adapters; and the end plate on one side is provided with a liquid inlet and/or a liquid outlet communicated with the cooling flow channel. According to the battery module disclosed by the utility model, the cooling runners of the end plates and the side plates are communicated through the adapters, so that liquid leakage caused by poor sealing at the joints of the end plates and the side plates is avoided; and the adapter connector is used for avoiding the vertically extending fastener, so that the liquid leakage phenomenon c