Liquid cooling plate and battery pack

The utility model relates to a liquid cooling plate and a battery pack, the liquid cooling plate comprises a first current collector, a second current collector and a plurality of harmonica flat tubes, the first current collector and the second current collector are arranged in parallel at intervals, and the plurality of harmonica flat tubes are arranged at intervals along the length direction of the first current collector; an accommodating space for accommodating a battery cell is formed between every two adjacent harmonica-shaped flat tubes, and two ends of each harmonica-shaped flat tube are respectively connected and communicated with the first current collector and the second current collector; wherein the first current collector is of a flat tube structure, and a liquid inlet is formed in the first current collector; the liquid cooling plate further comprises at least one first partition plate, the first partition plate extends in the length direction of the first current collector and divides the firs