Structure and method for achieving double effects of pressing and sealing

The invention relates to a structure and method for achieving pressing and sealing double effects, and belongs to the technical field of transformer structures and methods. According to the technical scheme, a plurality of internal assembly parts (3) are stacked in an upper space (8), the bottommost internal assembly part (3) is placed on a partition plate (7), an internal pressing rubber pad (4) is placed on the topmost internal assembly part (3), and a cover plate (2) is arranged above the internal pressing rubber pad (4); a box edge (11) is arranged at the top of the box body, the end part of the cover plate (2) is arranged on the box edge (11), and the external sealing rubber pad (1) is arranged between the end part of the cover plate (2) and the box edge (11) and is fixed through a fastener (5). The sealing structure has the beneficial effects that the rubber pad with small elasticity is adopted for pressing inside, the rubber pad with large elasticity is adopted for sealing outside, the whole structure