Sampling apparatus, battery management system, and vehicle

A sampling device for a battery module having a plurality of batteries, comprising:

• a plurality of core function regions, an auxiliary function region, and a plurality of terminal connectors,
• the plurality of core function regions being configured to process battery information of the plurality of batteries;
• the auxiliary function region having wiring arranged therein, and being configured to transmit a signal corresponding to the battery information, and the plurality of core function regions being cascaded together through the wiring of the auxiliary function region;
• and
• the terminal connectors being configured to connect the plurality of batteries and the auxiliary function region to collect the battery information,
• wherein the plurality of core function regions are arranged in the auxiliary function region and are connected to the plurality of batteries through the terminal connectors.