UNLOCKING ASSEMBLY

An unlocking assembly for unlocking a battery pack (400) in an electric vehicle is disclosed. The electric vehicle is provided with a locking mechanism (200), and the battery pack (400) is locked and connected to the electric vehicle by means of the locking mechanism (200). The unlocking assembly comprises: a first unlocking portion (100) arranged in the battery pack (400) and configured to drive the locking mechanism (200) to move to an unlocking position to unlock the battery pack (400); and a second unlocking portion (300) arranged on a battery swapping device (10) and configured to move the first unlocking portion (100) that is located at an initial position in the battery pack (400) to an extended position in a vertical direction to unlock the battery pack (400). The first unlocking portion (100) in the battery pack (400) can serve as an extension of the second unlocking portion (300) in a height direction, such that the locking mechanism (200) can be unlocked by means of the second unlocking portion (300) with a lower height. In this way, the overall height of the battery swapping device (10) is reduced, such that the battery swapping device (10) can better adapt to the height of a vehicle chassis and can conveniently shuttle into and out from the underneath of the vehicle chassis.