Multi-module sampling wire harness connection method and application device thereof

The invention provides a multi-module sampling wire harness connection method and an application device thereof, and the method comprises the steps: sampling a plurality of battery cell modules of a battery pack through at least two collectors, the battery pack comprises at least two battery cell modules, the number of the collectors is at least two, and each collector comprises at least one collection chip; the collector is connected with the battery cell module through the sampling wire harness; the method comprises the following steps: acquiring a battery cell string number M of a battery cell module and a channel number N of an acquisition chip; if the number M of the battery cell strings and the number N of the channels of the acquisition chip meet a preset condition; and performing cross-chip sampling between the cell module and the collector according to the channel number of the collector and the cell string number of the cell module. According to the application, when the number M of the battery cell strings and the number N of the channels of the acquisition chip meet the predetermined condition, cross-chip sampling is carried out between the battery cell module and the acquisition device, so that the acquisition device channels are compatible with the sampling wiring harness, and the risk of burning of the sampling wiring harness and the acquisition device caused by installation errors is prevented.