PROBLEM TO BE SOLVED: To provide a caseless film capacitor in which a void is prevented from being obvious and of which the appearance is made satisfactory, by excellently preventing the generation of the void which influences a humidity resistance performance, volumetric efficiency and production efficiency regarding the caseless film capacitor.;SOLUTION: A cavity 30 consists of a lower die nest 12 and an upper die nest 22. The upper die nest is a combination type of an annular peripheral wall part 23 which is opened in a vertical direction, and a top plate part 24 which is placed at an upper edge of the peripheral wall part. In a state where a film capacitor element 41 is accommodated in the cavity, a resin 50 is injected to fill the inside of the cavity while exhausting air by sucking a negative pressure in the cavity via a mating surface A between the peripheral wall part and the top plate part. As the upper die nest, an entire surface of a bottom face 24a of a front plate part opposite to the cavity is formed into a flat surface, and the flat bottom face 24a and an inner peripheral surface 23b of the peripheral wall part cross each other in a substantial corner orthogonal state.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2019,JPO&INPIT
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