Title:
CASELESS FILM CAPACITOR AND MANUFACTURING METHOD THEREOF
Document Type and Number:
Japanese Patent JP2019036656
Kind Code:
A
Abstract:
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
Inventors:
TAKAGAKI KOJI
KITAJIMA TAKAO
IMAI KENJI
MINEGISHI YUKARI
KITAJIMA TAKAO
IMAI KENJI
MINEGISHI YUKARI
Application Number:
JP2017157793A
Publication Date:
March 07, 2019
Filing Date:
August 18, 2017
Export Citation:
Assignee:
NICHICON CORP
KYOCERA CORP
KYOCERA CORP
International Classes:
H01G4/224; H01G2/10; H01G13/00
Domestic Patent References:
| JPS61272917A | 1986-12-03 | |||
| JP2015032759A | 2015-02-16 | |||
| JPS461728A | ||||
| JPH0437313U | 1992-03-30 | |||
| JPS6237120A | 1987-02-18 | |||
| JPS57191012A | 1982-11-24 |
Attorney, Agent or Firm:
Kazuhide Okada