Water inlet detection device and waterproof battery

The utility model relates to the technical field of battery production, and particularly discloses a water inlet detection device and a waterproof battery, the water inlet detection device comprises a detection plate, the detection plate comprises a substrate, a first metal layer and a second metal layer, the first metal layer and the second metal layer are exposed on the surface of the substrate; a roundabout insulation interval is arranged between the first metal layer and the second metal layer; and the trigger circuit is respectively and electrically connected with the first metal layer and the second metal layer and is used for sending a trigger signal to the protection circuit when the first metal layer and the second metal layer are in a conducting state. Therefore, the protection circuit is timely triggered and water inlet loss is reduced. 本实用新型涉及电池生产技术领域，具体公开一种进水检测装置及防水电池，进水检测装置包括：检测板，所述检测板包括基板和裸露于所述基板表面的第一金属层和第二金属层；所述第一金属层和第二金属层之间设有迂回的绝缘间隔；触发电路，所述触发电路分别与所述第一金属层和第二金属层电连接，用于在所述第一金属层和第二金属层处于导通状态时向保护电路发