公开(公告)号：DE10000604B4

公开(公告)日：2009-10-01

申请号：DE10000604

申请日：2000-01-10

Applicant: DENSO CORP

Inventor： SHIMOIDE YOSHIHIRO ,  KAWAI KAZUHIDE

IPC: H01F38/12 ,  F02P3/02 ,  F02P15/00 ,  H01F27/32

Abstract: In order to prevent a crack of plastic parts caused by a shrinkage force of a resin filler filled in an ignition coil casing, a cylindrical coil casing houses a primary coil and a secondary coil concentrically, and the resin filler such as epoxy resin is filled in the coil casing to insulate between the parts in the coil casing and to fix the parts. A ring-shaped partition member is provided at the upper portion in the coil casing to separate the resin filler locating above the primary coil and the secondary coil inside and outside. The partition member is made of a resin whose adhesive strength against the resin filler is weak, such as polypropylene (PP). The partition member reduces the shrinkage force between the outside resin filler and the inside resin filler, and prevents a crack of plastic parts, such as the secondary spool.

公开(公告)号：FR2788370A1

公开(公告)日：2000-07-13

申请号：FR0000080

申请日：2000-01-05

Applicant: DENSO CORP

Inventor： SHIMOIDE YOSHIHIRO ,  KAWAI KAZUHIDE

IPC: F02P15/00 ,  H01F38/12 ,  H01F5/06 ,  F02P3/02 ,  F02P13/00

Abstract: In order to prevent a crack of plastic parts caused by a shrinkage force of a resin filler filled in an ignition coil casing, a cylindrical coil casing houses a primary coil and a secondary coil concentrically, and the resin filler such as epoxy resin is filled in the coil casing to insulate between the parts in the coil casing and to fix the parts. A ring-shaped partition member is provided at the upper portion in the coil casing to separate the resin filler locating above the primary coil and the secondary coil inside and outside. The partition member is made of a resin whose adhesive strength against the resin filler is weak, such as polypropylene (PP). The partition member reduces the shrinkage force between the outside resin filler and the inside resin filler, and prevents a crack of plastic parts, such as the secondary spool.

公开(公告)号：FR2788370B1

公开(公告)日：2002-01-04

申请号：FR0000080

申请日：2000-01-05

Applicant: DENSO CORP

Inventor： SHIMOIDE YOSHIHIRO ,  KAWAI KAZUHIDE

IPC: F02P15/00 ,  H01F38/12 ,  H01F5/06 ,  F02P3/02 ,  F02P13/00

Abstract: In order to prevent a crack of plastic parts caused by a shrinkage force of a resin filler filled in an ignition coil casing, a cylindrical coil casing houses a primary coil and a secondary coil concentrically, and the resin filler such as epoxy resin is filled in the coil casing to insulate between the parts in the coil casing and to fix the parts. A ring-shaped partition member is provided at the upper portion in the coil casing to separate the resin filler locating above the primary coil and the secondary coil inside and outside. The partition member is made of a resin whose adhesive strength against the resin filler is weak, such as polypropylene (PP). The partition member reduces the shrinkage force between the outside resin filler and the inside resin filler, and prevents a crack of plastic parts, such as the secondary spool.

公开(公告)号：DE10000604A1

公开(公告)日：2000-07-13

申请号：DE10000604

申请日：2000-01-10

Applicant: DENSO CORP

Inventor： SHIMOIDE YOSHIHIRO ,  KAWAI KAZUHIDE

IPC: F02P15/00 ,  H01F38/12 ,  H01F27/32

Abstract: The tubular casing (11) contains a primary winding (20) and concentric secondary (22). Some of the resin filling covers the top of the windings. A partition (30) divides resin over both windings, into internal- and external portions.