BATTERY PACK CASE AND BATTERY PACK

Disclosed are a battery pack case and a battery pack. The battery pack case includes a frame body and a cover plate. The frame body includes partition strips, and the frame body is internally provided with an accommodating position for a protection plate defined by the partition strips. The cover plate is assembled on an upper opening of the accommodating position for the protection plate. A top end of the partition strips is provided with first protrusions and second protrusions, and the second protrusions are located at an outer side of the first protrusions and are higher than the first protrusions. An edge of the cover plate is limited to inner sides of the second protrusions and is supported on the first protrusions. A lower end of the edge of the cover plate is fixedly connected to the upper ends of the first protrusions in a manner of laser welding. According to the present disclosure, by means of welding, a space occupied by an additionally providing buckle may be saved, thereby ensuring that the accommodating position for the protection plate has a size required to accommodate a protection plate. In addition, arrangement of the second protrusions may play a limiting function on the cover plate supported on the first protrusions.