Abstract: An electric leakage detection method is used for detecting an electric leakage region of a component to be tested, which includes a first surface and a second surface, the first surface being provided over at least part of the second surface, and the electric leakage detection method includes: arranging a first conductive element on a side of the first surface away from the second surface, and applying a voltage between the first conductive element and the second surface; and moving the first conductive element relative to the first surface, and determining, under a condition that a resistance between the first conductive element and the second surface is less than a preset resistance, a projection region of the first conductive element on the first surface as the electric leakage region.

Abstract: A flow-coating apparatus is configured to flow-coat a member to be flow-coated with an insulation layer, where the member to be flow-coated includes a first surface and an outer peripheral surface surrounding a periphery of the first surface, the first surface being perpendicular to a vertical direction. The flow-coating apparatus includes a first flow-coating mechanism and a second flow-coating mechanism, where a flow-coating opening of the first flow-coating mechanism faces the first surface and is configured to flow-coat the first surface with the insulation layer; and a flow-coating opening of the second flow-coating mechanism faces the outer peripheral surface and is configured to flow-coat the outer peripheral surface with the insulation layer.