Insulation detection device and insulation detection method for cooling plate of battery pack

An insulation detection device for a cooling plate of a battery pack, comprising:

• a detection position for placing the cooling plate of the battery pack, wherein the cooling plate of the battery pack is hollow, and an outer surface of the cooling plate of the battery pack is coated with an insulation coating;
• conductive cotton, arranged in the detection position for wrapping the cooling plate of the battery pack;
• a first conductive element for connecting to an inner wall of the cooling plate of the battery pack;
• a second conductive element for connecting to the conductive cotton;
• an insulation detector, wherein a first end of the insulation detector is connected to the first conductive element, and a second end of the insulation detector is connected to the second conductive element;
• and
• a pressing apparatus, configured to increase a contact tightness between the conductive cotton and the cooling plate of the battery pack;
• wherein
• the pressing apparatus comprises a pressure transmission element;
• and wherein
• the pressure transmission element comprises a sliding shaft, a slideway, and a spring;
• the sliding shaft passes through at least two detection positions, and the spring is sleeved on the sliding shaft between adjacent detection positions;
• and
• the slideway is configured, when a detection position moves along the sliding shaft, to perform auxiliary positioning on the detection position.