JPH0252420U

JPH0252420U -

Info

Publication number: JPH0252420U
Application number: JP13212988U
Authority: JP
Priority date: 1988-10-07
Filing date: 1988-10-07
Publication date: 1990-04-16

Description

[Brief explanation of drawings]

第１図は本考案の内燃機関用点火コイルの一実
施例を示す縦断面図、第２図は同、一次ボビンの
平面図、第３図は第２図の―線断面図、第４
図は一次ボビンの底面図、第５図は第１図に示し
た点火コイルの一実施例における二次ボビンの平
面図、第６図は第５図の―線断面図、第７図
は二次ボビンの底面図である。１……点火コイル、１１……閉磁路コア、１１
ａ……周縁コア、１１ｂ……中心コア、１１ｃ，
１１ｄ……端面コア、１３……一次コイル、１４
……二次コイル、１５……一次ボビン、１５ａ，
１５ｂ……鍔部、１５ｃ，１５ｅ……切欠、１５
ｄ……延出部、１６……二次ボビン、１６ａ……
溝、１６ｂ……立壁、１６ｃ……切欠部、１６ｄ
……凹部。 Fig. 1 is a vertical sectional view showing an embodiment of the ignition coil for an internal combustion engine of the present invention, Fig. 2 is a plan view of the primary bobbin, Fig. 3 is a sectional view taken along the line - - of Fig. 2, and Fig. 4 is a plan view of the primary bobbin.
The figure is a bottom view of the primary bobbin, FIG. 5 is a plan view of the secondary bobbin in one embodiment of the ignition coil shown in FIG. It is a bottom view of the next bobbin. 1...Ignition coil, 11...Closed magnetic circuit core, 11
a...Peripheral core, 11b...Center core, 11c,
11d...End face core, 13...Primary coil, 14
...Secondary coil, 15...Primary bobbin, 15a,
15b...flange, 15c, 15e...notch, 15
d...Extending portion, 16...Secondary bobbin, 16a...
Groove, 16b... Standing wall, 16c... Notch, 16d
...Concavity.

Claims

[Scope of utility model registration request]

It consists of a cylindrical body having flanges on the side surfaces of both ends, a primary bobbin around which a primary coil is wound between the flanges, and a cylindrical body with a plurality of annular grooves formed on the side surfaces, and a second ring in each of the plurality of grooves. An ignition coil for an internal combustion engine, comprising a secondary bobbin on which a primary coil is wound in a divided manner, the primary bobbin on which the primary coil is wound is accommodated in a hollow part of the secondary bobbin, and the primary bobbin is molded with synthetic resin. , a plurality of notches are formed around the inner edge of the hollow portion at one end of the secondary bobbin, separated from the bottom surface of the plurality of grooves by a wall portion having a predetermined thickness, and a plurality of notches are formed at the end surface of the other end of the secondary bobbin. forming at least one recess opening in the hollow portion, and forming at least one notch in a flange on one end side of the primary bobbin at a position facing the notch of the secondary bobbin;
forming at least one notch and at least one extending portion in the other end side flange of the primary bobbin, and fitting the one end side flange of the primary bobbin into the hollow portion of the secondary bobbin; An ignition coil for an internal combustion engine, characterized in that an extending portion of the primary bobbin is fitted into a recess formed in an end face of the secondary bobbin.