Battery pack

The utility model relates to the technical field of batteries, and provides a battery pack, which comprises a battery assembly and a battery pack, the circuit board comprises a first signal acquisition circuit, the first signal acquisition circuit comprises a first bending position and a second bending position, so that the first signal acquisition circuit is bent into a first part, a second part and a third part, the first part comprises a safety structure, at least part of the second part is overlapped with the first part, and the third part is overlapped with the first part. A preset included angle is formed between the third part and the second part, a first bending part is arranged between the second part and the first part, and a second bending part is arranged between the second part and the third part; and the third part is connected with the battery. According to the battery pack, the second part and the first part are overlapped, and the preset included angle is formed between the third part and the