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31. 发明专利

JPH0793215B2 失效
公开(公告)号：JPH0793215B2
公开(公告)日：1995-10-09
申请号：JP5844385
申请日：1985-03-25
IPC分类号： H01F27/24 , F02P3/02 , F02P7/02 , F02P7/03 , F02P9/00 , F02P15/08 , H01F30/00 , H01F38/12

32. 发明专利

JPH07238881A IGNITION COIL 失效
公开(公告)号：JPH07238881A
公开(公告)日：1995-09-12
申请号：JP2850094
申请日：1994-02-25
申请人： MITSUBISHI ELECTRIC CORP
发明人： MORITA SHINGO , OHASHI YUTAKA
IPC分类号： F02P15/00 , F02P3/02 , H01F38/12 , H01F30/00
摘要： PURPOSE:To provide a large enduring rate to partial discharge deterioration and improve reliability to dielectric breakdown of an ignition coil and also reduce its size. CONSTITUTION:First to third mica plates 11, 12, 13 having conductive rate along a surface direction larger than conductive rate along a thickness direction are used for insulating a high voltage part on a secondary coil 4 side in a case 8 and a primary coil 2 and a core 9 inside and outside the case 8 and a conductive apparatuses outside the case 8. For example, if partial discharge deterioration may increase in an insulating resin 10 from the high voltage secondary coil 4 toward the primary coil 2, a proceeding direction of the partial discharge deterioration is changed to the surface direction of the first mica plate by this first mica plate 11 and be diffused. Thereby, an enduring rate to the partial discharge deterioration of the ignition coil becomes large and reliability to dielectric breakdown of the ignition coil is improved and reduction of its size may be achieved.

33. 发明专利

JPH07167027A IGNITION TRANSFORMER DISCHARGING IGNITION PLUG FOR SPARK DISCHARGE IGNITION INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH07167027A
公开(公告)日：1995-07-04
申请号：JP27276394
申请日：1994-11-07
申请人： CHRYSLER CORP
发明人： GAADEINAA EE NOOBURU , REONAADO KAFUKA , MAAKU SHIYUUFUETERI
IPC分类号： F02P3/02 , F02P13/00 , F02P15/00 , F02P17/12 , H01F38/12 , H01T13/44 , H01F30/00
摘要： PURPOSE: To provide an ignition transformer for discharging a spark plug eliminating the need for a high voltage distribution device in a spark discharge ignition internal combustion engine. CONSTITUTION: This transformer is directly mounted to a spark plug 38 and includes a core 42 about which a primary winding 52 and a secondary winding 54 are toroidally wound. A controller provides signals to a circuit which causes maximum charging of the transformer for ignition and subsequent charging of the transformer for diagnostic purposes. The system also includes a diagnostic circuit which can detect the occurrence of an electric discharge, and/or its duration, across the spark plug 38 as a result of one of the diagnostic charges by monitoring the transformer for a reflected voltage in its primary winding 52. The detection circuits outputs a signal to the controller. The signal allows the controller to diagnose conditions within a combustion cylinder.

34. 发明专利

JPH0729751A IGNITION COIL FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH0729751A
公开(公告)日：1995-01-31
申请号：JP17041693
申请日：1993-07-09
申请人： MITSUBISHI ELECTRIC CORP
发明人： SAWAZAKI NORIYUKI , NARUSHIGE TAKAFUMI , MURATA SHIGEMI , KOIWA MITSURU , OHASHI YUTAKA
IPC分类号： F02P15/00 , F02P3/02 , H01F38/12 , H01F30/00
摘要： PURPOSE:To disuse a wire harness by a method wherein plural connectors in input.output end parts of respective functional components are arranged by integrated conductors using plural connectors integrated with a resin. CONSTITUTION:A primary coil 51 wound up around a primary bobbin 53 on one side of a closed magnetic path iron core 55 and a secondary coil 52 wound up around a secondary borrin 54 encircling the primary coil 51 are contained in a case 7. On the other hand, a conductor 1 comprising plural conductors 11 integrated with a resin and another conductor 2 comprising plural conductors 21 also integrated with the resin are insert-molded in the case 7 while the integrated conductor 2 is formed into the terminal 23 of a connector 6. Besides, the integrated conductor 1 is electrically connected to both end parts 51a, 51b of the primary coil 51 by fusing step while the integrated conductors 1, 2 are connected to plural switching assemblies 31 mounted on a heat sink 32 bonded onto the case 7 at 31a by welding step. Furthermore, the conductors 11, 21 of the integrated conductors 1, 2 are also connected by welding step.

35. 发明专利

JPH0729748A IGNITION COIL 失效
公开(公告)号：JPH0729748A
公开(公告)日：1995-01-31
申请号：JP16997993
申请日：1993-07-09
申请人： MITSUBISHI ELECTRIC CORP
发明人： MAEKAWA TOSHIO , SHIMIZU TAKESHI , KOIWA MITSURU
IPC分类号： F02P15/00 , F02P3/02 , F02P13/00 , H01F38/12 , H01T13/44 , H01F30/00
摘要： PURPOSE:To make it possible to obtain an ignition coil, which is small-sized and is superior in reliability, by a method wherein a partition wall part, which is positioned in the vicinity of a terminal, is provided integrally with a bobbin. CONSTITUTION:A partition wall part 3b having an L-shaped section is integrally formed with a secondary bobbin 3 and a partition wall part 13a having an L-shaped section is integrally formed with a holder 13. The creeping distance between terminals 12a and 12b and a low-voltage part, such as a primary coil and a core, is made long by the partition wall parts 3b and 13a. As a resin member constituting the bobbin 3 (the partition wall part 3b) and the holder 13 (the partion wall part 13a), a material having insulation properties higher than those of a resin material, which is filled in a case 8, is used. Thereby, as the insulation properties of the bobbin 3 and the holder 13 can be improved by the partition wall parts, a highly reliable and small-sized ignition coil can be obtained.

36. 发明专利

JPH0673339B2 失效
公开(公告)号：JPH0673339B2
公开(公告)日：1994-09-14
申请号：JP5973785
申请日：1985-03-26
IPC分类号： F02P3/02 , F02P7/03 , F02P9/00 , F02P15/08 , H01F27/24 , H01F30/00 , H01F38/12 , H01F31/00

37. 发明专利

JPH06505784A 失效
公开(公告)号：JPH06505784A
公开(公告)日：1994-06-30
申请号：JP50637192
申请日：1992-03-19
IPC分类号： F02P3/02 , F02P7/03 , F02P13/00 , F02P15/00 , F02P15/08 , H01F38/00 , H01F38/12

38. 发明专利

JPH06117347A IGNITION DEVICE OF INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH06117347A
公开(公告)日：1994-04-26
申请号：JP26749592
申请日：1992-10-06
申请人： NIPPON DENSO CO
发明人： MORINO SEIJI
IPC分类号： F02P3/08 , F02P3/00 , F02P3/02 , F02P3/05 , F02P7/03 , F02P9/00 , F02P15/00 , H01F38/12
摘要： PURPOSE:To generate high voltage for ignition on a secondary coil by electrification for a short period of time and to reduce electrification energy required for ignition concerning an ignition device devised to simultaneously electrify primary coils by way of serially connecting two pieces of the primary coils of ignition coils connected to ignition plugs of a cylinder on which a compression process and an exhaust process are paired. CONSTITUTION:By respectively serially connecting primary coils of ignition coils 11 and 14 and ignition coils 12 and 13 and putting on MOSFET 16, 18 provided on one end of each serial circuit by ignition timing of each cylinder, each of the serial circuits is electrified by electrification energy accumulated in a condenser CO and a coil LO, and ignition plugs 1 and 4 and ignition plugs 2 and 3 are simultaneously made to discharge. Additionally, coupling coefficient of each of the ignition coils 11-14 is set at a value more than 0.9. Consequently, it comes to be possible to certainly ignite air-fuel mixture of a cylinder in a compression process by small electrification energy in a short period of time of electrification.

39. 发明专利

JPH0666239A MANUFACTURE OF IGNITION DEVICE FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH0666239A
公开(公告)日：1994-03-08
申请号：JP22280992
申请日：1992-08-21
申请人： MITSUBISHI ELECTRIC CORP
发明人： TARUYA KIMIAKI , KOIWA MITSURU
IPC分类号： F02P15/00 , F02P3/02 , H01F27/40 , H01F38/12
摘要： PURPOSE:To provide a method for manufacturing an internal combustion engine ignition device, whereby the work of connecting an ignition coil and a power switch by wiring is facilitated and workability enhanced in assembling them. CONSTITUTION:In an internal combustion engine ignition device, in which a power switch for turning on and off the primary current of an ignition coil, an iron core 7 and the ignition coil consisting of primary and secondary coils 2, 6 are integrated with one another, first the power switch and the ignition coil are assembled and then connected by wiring to each other to form an assembly, and then the whole assembly is transfer molded using insulating resin 9.

40. 发明专利

JPH0587967B2 失效
公开(公告)号：JPH0587967B2
公开(公告)日：1993-12-20
申请号：JP7876884
申请日：1984-04-20
申请人： BOSCH GMBH ROBERT
发明人： DEIITAA BETSU , IERUGU ISURAA
IPC分类号： F02P3/02 , F02P3/04 , F02P7/03 , F02P9/00 , F02P15/00 , F02P15/08 , H01F30/00 , H01F38/12 , H01F31/00
摘要： To provide ignition energy to respective spark plugs of a multi-cylinder internal combustion engine (ICE) without a distributor, winding groups, each including a primary and secondary winding, are located on respective core portions of an iron core, which core portions are coupled together by zones (a, b, c) of high magnetic reluctance, or low magnetic flux conductivity; the winding groups can be located on L cores (16, 17) with two high-reluctance gaps between the ends of the facing L cores (FIG. 1) or on a common U core (28, 30, 29) with a cross yoke (31) spaced from the ends of the legs of the U. Interruption of current flow through the primary of any one of the winding groups will then not induce in the secondary of the other winding group a voltage high enough to cause spark-over at the other secondary; free-wheeling diodes (14, 22), connected across the primaries, can suppress current flow in the primary not being interrupted; and diodes (12, 13; 25, 26), serially connected with spark plugs, likewise suppress spurious spark-over.

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