Voltage acquisition device and battery module

Abstract

The utility model provides a voltage acquisition device and a battery module. The voltage acquisition device comprises a metal connecting piece, a circuit board and a busbar; the metal connecting piece comprises a first welding part welded to the busbar, a second welding part welded to the circuit board and a deformation part connected with the first welding part and the second welding part; the deformation part comprises a base part, a first connecting part and a second connecting part, the first connecting part and the second connecting part are bent from the two sides of the base part, the first connecting part is connected with the first welding part, the second connecting part is connected with the second welding part, and an open groove is formed in the deformation part. The metal connecting piece can absorb vibration and stress to a certain extent, and the reliability and stability of voltage acquisition are ensured.

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