Title:
内燃機関用点火コイル
Document Type and Number:
Japanese Patent JP6537445
Kind Code:
B2
Abstract:
An ignition coil for an internal combustion engine capable of effectively preventing leakage of noise occurring due to, for example, radio waves or unpleasant sounds generated by a spark discharge is provided. When an elastic O-ring 12, which is a main part of the invention and which is made of a annular elastic resin material, is used as securing means, with a simple structure, it is possible to hold a second cap 9 (on a second electrode side) of an electric noise suppressing resistor 10 and to close a gap formed between an inner wall surface of a resistor accommodation section 4 and the second cap 9 of the electric noise suppressing resistor 10. Therefore, this ignition coil is characterized in that, after securing the electric noise suppressing resistor 10 to the resistor accommodation section 4 by using the elastic O-ring 12, even if the inside of the resistor accommodation section 4 is uniformly filled with the insulating material 5, it is possible to prevent leakage to a location below the resistor accommodation section 4 from occurring.
Inventors:
Hiromi Ide
Application Number:
JP2015230668A
Publication Date:
July 03, 2019
Filing Date:
November 26, 2015
Export Citation:
Assignee:
Hitachi Automotive Systems Hanshin Co., Ltd.
International Classes:
F02P15/00; H01F38/12
Domestic Patent References:
| JP2012184696A | ||||
| JP4209400B2 |
Attorney, Agent or Firm:
Shinichi Fukuda
Kyosuke Kato
Mizusaki Shin
Kyosuke Kato
Mizusaki Shin