公开(公告)号：US06781500B2

公开(公告)日：2004-08-24

申请号：US10139639

申请日：2002-05-07

申请人： Kazuhide Kawai ,  Masafuyu Sano ,  Shigeya Abe ,  Masahiro Inagaki ,  Hajime Kasai ,  Hidetoshi Nakashima ,  Jyunichi Wada ,  Koji Tsunenaga ,  Kazutoyo Osuka ,  Masahiko Aoyama ,  Takashi Tauchi ,  Kaneo Buma ,  Yoshitaka Sato ,  Katsunori Akimoto

发明人： Kazuhide Kawai ,  Masafuyu Sano ,  Shigeya Abe ,  Masahiro Inagaki ,  Hajime Kasai ,  Hidetoshi Nakashima ,  Jyunichi Wada ,  Koji Tsunenaga ,  Kazutoyo Osuka ,  Masahiko Aoyama ,  Takashi Tauchi ,  Kaneo Buma ,  Yoshitaka Sato ,  Katsunori Akimoto

IPC分类号： H01F2730

CPC分类号： H01F38/12 ,  H01F2038/122

摘要： In a stick coil, there is disclosed an ignition coil for an internal combustion engine which can prevent a crack (a collar leak) from being generated due to a thermal stress. In this ignition coil, the structure is made such that a size (L) of a portion which is in parallel to an axial direction of a primary spool (121) in a projection portion (121b) is larger than a size (T) of a portion which is in parallel to an orthogonal direction to the axial direction of the primary spool (121). Accordingly, a frontal projected area of the projection portion (121b) as seen from a flowing direction of a resin becomes small, a resin flow is hard to get out of order at a time when the resin flows through a portion corresponding to the projection portion (121b) at the forming time, and a convoluted void and a weld are hard to be generated. Accordingly, since it is possible to prevent a mechanical strength in a root portion of the projection portion (121b) from being reduced, it is possible to previously prevent a crack from being generated in the root portion of the projection portion (the collar portion) (121b) due to a thermal stress so as to reduce an insulating property.

摘要翻译： 在棒状线圈中，公开了一种用于内燃机的点火线圈，其可以防止由于热应力而产生裂纹（轴环泄漏）。 在该点火线圈中，该结构被制成使得与突起部分（121b）中的初级线轴（121）的轴向方向平行的部分的尺寸（L）大于 与主卷轴（121）的轴向的正交方向平行的部分。 因此，从树脂的流动方向看，突出部分（121b）的正面投影面积变小，在树脂流过与突起部分相对应的部分时，树脂流动难以变得不顺利 （121b），并且难以产生卷积的空隙和焊缝。 因此，由于可以防止突起部（121b）的根部的机械强度降低，所以能够防止在突起部（轴环部）的根部产生裂纹， （121b）由于热应力而降低绝缘性能。

公开(公告)号：US06897755B2

公开(公告)日：2005-05-24

申请号：US10720170

申请日：2003-11-25

申请人： Jyunichi Wada ,  Koji Tsunenaga ,  Kazutoyo Osuka

发明人： Jyunichi Wada ,  Koji Tsunenaga ,  Kazutoyo Osuka

IPC分类号： H01F38/12 ,  H01F27/02

CPC分类号： H01F38/12 ,  H01F2038/122

摘要： In a stick coil, there is disclosed an ignition coil for an internal combustion engine which can prevent a crack (a collar leak) from being generated due to a thermal stress. In this ignition coil, the structure is made such that a size (L) of a portion which is in parallel to an axial direction of a primary spool (121) in a projection portion (121b) is larger than a size (T) of a portion which is in parallel to an orthogonal direction to the axial direction of the primary spool (121). Accordingly, a frontal projected area of the projection portion (121b) as seen from a flowing direction of a resin becomes small, a resin flow is hard to get out of order at a time when the resin flows through a portion corresponding to the projection portion (121b) at the forming time, and a convoluted void and a weld are hard to be generated. Accordingly, since it is possible to prevent a mechanical strength in a root portion of the projection portion (121b) from being reduced, it is possible to previously prevent a crack from being generated in the root portion of the projection portion (the collar portion) (121b) due to a thermal stress so as to reduce an insulating property.

摘要翻译： 在棒状线圈中，公开了一种用于内燃机的点火线圈，其可以防止由于热应力而产生裂纹（轴环泄漏）。 在该点火线圈中，该结构被制成使得与突起部分（121b）中的初级线轴（121）的轴向平行的部分的尺寸（L）大于尺寸（T） 与主卷轴（121）的轴向的正交方向平行的部分。 因此，从树脂的流动方向看，突出部分（121b）的正面投影面积变小，树脂流过对应于投影部分的部分时，树脂流动难以失序 部分（121b），并且难以产生回旋的空隙和焊缝。 因此，由于可以防止突起部（121b）的根部的机械强度减小，所以能够防止在突起部的根部产生裂纹（凸缘部 ）（121b）由于热应力而降低绝缘性能。

公开(公告)号：US06810868B2

公开(公告)日：2004-11-02

申请号：US10356544

申请日：2003-02-03

申请人： Koji Tsunenaga ,  Kazutoyo Osuka ,  Jyunichi Wada

发明人： Koji Tsunenaga ,  Kazutoyo Osuka ,  Jyunichi Wada

IPC分类号： F02P3055

CPC分类号： H01T13/44 ,  H01F27/022 ,  H01F38/12 ,  H01F2038/122

摘要： An ignition coil has an outer coil unit, an inner coil unit, a coil case in which the outer and inner coil units are housed and a tower case accommodating lower parts of outer and inner spools. The outer spool is made of resin material whose bonding strength to resin insulating material, with which the tower case is filled, is weak. An axial leading end of the outer spool is positioned axially away from a reference position by a distance equal to or shorter than 60% of a reference length or by a distance equal to or longer than 90% of the reference length. With this ignition coil, cracks are suppressed on the resin insulating material opposed to the axial leading end of the outer spool otherwise caused by thermal stress.

摘要翻译： 点火线圈具有外线圈单元，内线圈单元，容纳外线圈单元和内线圈单元的线圈壳体和容纳外线圈和内线圈的下部的塔架壳体。 外部卷轴由树脂材料制成，其与塔壳填充的树脂绝缘材料的结合强度较弱。 外卷轴的轴向前端远离基准位置轴向远离参考长度的60％或等于或大于参考长度的90％的距离。 利用该点火线圈，与由外部线轴的轴向前端相反的树脂绝缘材料，由于热应力引起的裂纹受到抑制。

公开(公告)号：US07234454B2

公开(公告)日：2007-06-26

申请号：US11481047

申请日：2006-07-06

申请人： Takashi Tauchi ,  Koji Tsunenaga ,  Kazuhide Kawai ,  Katsutoshi Shibata

发明人： Takashi Tauchi ,  Koji Tsunenaga ,  Kazuhide Kawai ,  Katsutoshi Shibata

IPC分类号： F02P3/02 ,  H01F38/12

CPC分类号： H01F38/12 ,  F02P3/02 ,  F02P13/00 ,  H01F27/022 ,  H01F27/04 ,  H01F27/29 ,  H01F41/005 ,  H01F2038/122 ,  H01T13/44

摘要： An ignition coil is disclosed. The ignition coil includes an insulative material, a body, and a head coupled to the body. A portion of the insulative material is included in the body, and a portion of the insulative material is included in the head. The head includes a casing, a flange for coupling to an engine case, and a connector adapted to be connected to an external device. The head also includes a conducting terminal with a connector pin, an exposed contact, and a connecting part. The connector pin is coupled to the connector, the exposed contact is coupled to the casing or the flange, and the connecting part couples the exposed contact and the connector pin. A portion of the connecting part is embedded in the insulative material, and wherein a remaining portion is embedded in the casing. A method of manufacturing the ignition coil is also disclosed.

摘要翻译： 公开了点火线圈。 点火线圈包括绝缘材料，主体和联接到主体的头部。 绝缘材料的一部分被包括在主体中，绝缘材料的一部分被包括在头部中。 头部包括壳体，用于联接到发动机壳体的凸缘以及适于连接到外部装置的连接器。 头还包括具有连接器针，暴露触点和连接部分的导电端子。 连接器针连接到连接器，暴露的触点耦合到壳体或凸缘，并且连接部件将暴露的触点和连接器引脚相连接。 连接部分的一部分嵌入在绝缘材料中，并且其中剩余部分嵌入壳体中。 还公开了一种制造点火线圈的方法。

公开(公告)号：US20070012301A1

公开(公告)日：2007-01-18

申请号：US11481047

申请日：2006-07-06

申请人： Takashi Tauchi ,  Koji Tsunenaga ,  Kazuhide Kawai ,  Katsutoshi Shibata

发明人： Takashi Tauchi ,  Koji Tsunenaga ,  Kazuhide Kawai ,  Katsutoshi Shibata

IPC分类号： F02P3/02 ,  H01F38/12

CPC分类号： H01F38/12 ,  F02P3/02 ,  F02P13/00 ,  H01F27/022 ,  H01F27/04 ,  H01F27/29 ,  H01F41/005 ,  H01F2038/122 ,  H01T13/44

摘要： An ignition coil is disclosed. The ignition coil includes an insulative material, a body, and a head coupled to the body. A portion of the insulative material is included in the body, and a portion of the insulative material is included in the head. The head includes a casing, a flange for coupling to an engine case, and a connector adapted to be connected to an external device. The head also includes a conducting terminal with a connector pin, an exposed contact, and a connecting part. The connector pin is coupled to the connector, the exposed contact is coupled to the casing or the flange, and the connecting part couples the exposed contact and the connector pin. A portion of the connecting part is embedded in the insulative material, and wherein a remaining portion is embedded in the casing. A method of manufacturing the ignition coil is also disclosed.

公开(公告)号：US06675786B2

公开(公告)日：2004-01-13

申请号：US10458655

申请日：2003-06-11

申请人： Koji Tsunenaga ,  Atsuyuki Konishi

发明人： Koji Tsunenaga ,  Atsuyuki Konishi

IPC分类号： F02P100

CPC分类号： F02P3/02 ,  F02P13/00 ,  H01T13/06

摘要： In an ignition coil assembly, a plurality of ignition coils is arranged to be electrically connected to spark plugs received in plug holes of an engine. A base cover supports the ignition coils at corresponding positions, which correspond to positions of the plug holes, respectively. A top cover covers a top surface of the base cover. Connecting bolts connects between the top cover and the base cover. Fastening bolts secures only the base cover to the engine.

摘要翻译： 在点火线圈组件中，多个点火线圈布置成电连接到容纳在发动机的插头孔中的火花塞。 基座盖分别对应于插头孔的位置的相应位置处支撑点火线圈。 顶盖覆盖底盖的顶面。 连接螺栓连接在顶盖和底盖之间。 紧固螺栓仅将底盖固定到发动机上。

公开(公告)号：US06776147B2

公开(公告)日：2004-08-17

申请号：US10456470

申请日：2003-06-09

申请人： Koji Tsunenaga ,  Yoshihiro Shimoide

发明人： Koji Tsunenaga ,  Yoshihiro Shimoide

IPC分类号： F02P302

CPC分类号： F02P3/02 ,  F02D2400/21 ,  F02P13/00 ,  H01T13/04

摘要： In an ignition coil assembly, a plurality of ignition coils is arranged to be electrically connected to spark plugs received in plug holes of an engine. A base cover includes a plurality of receiving through holes, which are arranged at corresponding positions that correspond to positions of the plug holes, respectively. A top cover covers a top surface of the base cover and secures each ignition coil through engagement with the head of each ignition coil. Fastening bolts temporarily fasten the top cover and the base cover in a manner that allows sliding adjustment of a securing position of each ignition coil, which is loosely received in a corresponding one of the base cover through holes, in an imaginary plane that is perpendicular to an axis of each ignition coil.

摘要翻译： 在点火线圈组件中，多个点火线圈布置成电连接到容纳在发动机的插头孔中的火花塞。 基座盖包括多个接收通孔，它们分别布置在对应于插头孔的位置的相应位置处。 顶盖覆盖底盖的顶表面，并通过与每个点火线圈的头部接合来固定每个点火线圈。 紧固螺栓暂时将顶盖和基座盖紧固，使得可以将每个点火线圈的固定位置滑动调节，该位置松动地容纳在相应的一个基座盖通孔中，该假想平面垂直于 每个点火线圈的轴线。