# US 9,437,368 B2 · Capacitor and method for manufacturing same

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- Number: US 9,437,368 B2
- Document ID: US9437368B2
- Status: Granted
- Kind: B2
- Application number: 14/269,309
- Filed: 2014-05-05
- Published: 2014-08-28
- Granted: 2016-09-06
- Earliest claimed: 2011-11-17
- Assignees: Nippon Chemi-Con Corporation
- Applicants: Nippon Chemi-Con Corporation
- Inventors: Masayuki Mori; Ikufumi Honda
- Web page: https://patentgrep.com/patent/US9437368B2

## CPC

- H01G 9/12: Vents or other means allowing expansion
- H01G 9/08: Housing; Encapsulation
- H01G 9/10: Sealing, e.g. of lead-in wires
- Y02E 60/13: Energy storage using capacitors
- Y10T 29/43: Electric condenser making
- H01G: CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE (selection of specified materials as dielectric H01B3/00; capacitors having potential barriers H10D1/62, H10K10/10)
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A capacitor includes a sealing member that includes a valve installation part, the valve installation part being higher than a processed sealing part of an outer packaging case for housing a capacitor element; and a pressure valve that is installed in a through hole of the valve installation part and whose valve function part is set at a position, the position being higher than the processed sealing part.

## Claims

### Claim 1

A capacitor comprising:
a sealing member that includes a valve installation part, the valve installation part being higher than a processed sealing part of an outer packaging case for housing a capacitor element;
a pressure valve that is installed in a through hole of the valve installation part and whose valve function part is set at a position, the position being higher than the processed sealing part; and
protrusions that are formed on a top of the valve installation part, the protrusions surrounding the valve function part, a clearance among the protrusions being formed, wherein
a curved face that protrudes outside or a taper face is provided for an outer peripheral part of the valve function part.

### Claim 2 (depends on 1)

The capacitor of claim 1, wherein
the sealing member includes a terminal installation part that is set higher than a position of the processed sealing part, and the valve installation part is higher than the terminal installation part.

### Claim 3 (depends on 1)

The capacitor of claim 1, wherein
the valve installation part includes an inclined face that inclines toward an outer edge.