Battery tray, battery pack, and vehicle

A battery pack, comprising:

• a battery module;
• and
• a battery tray, the battery tray comprising:
• a bottom plate, wherein the bottom plate is configured to support the battery module;
• a side beam structure, wherein the side beam structure is disposed on a periphery of the bottom plate and is coupled together with the bottom plate to form a mounting cavity;
• and
• at least one first partition, wherein the at least one first partition is located in the mounting cavity and is connected to the side beam structure, and the at least one first partition divides the mounting cavity into at least two accommodating cavities for housing the battery module, wherein
• the at least one first partition comprises a partition body and an insulating assembly, the partition body is connected to the side beam structure and the partition body is provided with a notch, the insulating assembly being configured to:
• seal the notch and allow passage of a connection component connected to the battery module;
• and
• at least one of the side beam structure or the at least one first partition associated with a respective accommodating cavity of the at least two accommodating cavities is provided with a first exhaust port and an exhaust channel communicating with the first exhaust port, and the first exhaust port is configured to guide gas in the respective accommodating cavity into the exhaust channel,
• wherein the battery module is disposed in the accommodating cavity.