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    Ingition coil for internal combustion engine
    1.
    发明授权
    Ingition coil for internal combustion engine 有权
    内燃机引擎线圈

    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。

    Ignition coil and method for manufacturing an ignition coil
    3.
    发明授权
    Ignition coil and method for manufacturing an ignition coil 有权
    点火线圈及点火线圈制造方法

    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。

    Ignition coil for internal combustion engine
    6.
    发明授权
    Ignition coil for internal combustion engine 有权
    内燃机点火线圈

    公开(公告)号：US06191674B1

    公开(公告)日：2001-02-20

    申请号：US09456546

    申请日：1999-12-08

    申请人： Norihiro Adachi ,  Yoshihiro Shimoide ,  Kazutoyo Osuka ,  Kazuhide Kawai

    发明人： Norihiro Adachi ,  Yoshihiro Shimoide ,  Kazutoyo Osuka ,  Kazuhide Kawai

    IPC分类号： H01F2702

    CPC分类号： F02P3/02 ,  H01F38/12 ,  H01F2038/122 ,  H01T13/44

    摘要： An ignition coil that can be easily assembled, that assures co-axial alignment of a primary coil, a secondary coil and a center core part, and that generates desired high voltage. A core body is formed to have an outer diameter larger than that of a permanent magnet so that the permanent magnet will not protrude out of the outer peripheral face of the core body. Accordingly, when the center core part is inserted into a secondary spool, the center core part is not caught by the secondary spool and may be readily inserted and assembled therewith. Also, because no bulge is created at the center core part, it is possible to prevent the center core part from tilting within the secondary spool and to readily assure the co-axial alignment of the primary spool, the secondary spool and the center core part. Thus, voltage generated by the secondary coil is prevented from dropping, and high voltage may be applied to the ignition plug.

    摘要翻译： 可以容易地组装的点火线圈，其确保初级线圈，次级线圈和中心芯部分的同轴对准，并且产生期望的高电压。 芯体形成为具有大于永久磁铁的外径，使得永磁体不会从芯体的外周面突出。 因此，当中心芯部分插入次级线轴时，中心芯部分不被二次线轴卡住，并且可以容易地插入和组装。 此外，由于在中心芯部没有产生凸起，所以可以防止中心芯部在二次线轴内部倾斜，并且容易地确保初级线轴，次级线轴和中心芯部分的同轴对准 。 因此，防止由次级线圈产生的电压下降，并且高电压可能被施加到火花塞。

    Ignition coil device having spool including glass fiber and silica
    7.
    发明授权
    Ignition coil device having spool including glass fiber and silica 失效
    具有卷筒的点火线圈装置包括玻璃纤维和二氧化硅

    公开(公告)号：US06337617B1

    公开(公告)日：2002-01-08

    申请号：US09460242

    申请日：1999-12-13

    申请人： Katsuhisa Kato ,  Kazuhide Kawai ,  Kazutoyo Osuka ,  Hiroyuki Wakabayashi ,  Hideki Oka

    发明人： Katsuhisa Kato ,  Kazuhide Kawai ,  Kazutoyo Osuka ,  Hiroyuki Wakabayashi ,  Hideki Oka

    IPC分类号： H01F2702

    CPC分类号： H01F38/12 ,  H01F27/325 ,  H01F2038/122

    摘要： In a stick-type ignition coil device for engines, a primary spool is disposed outside a secondary coil. The primary spool is made of PBT (polybuthylene telephthalate) having a low melting viscosity and a high flowability as a resin base material. The resin base material is admixed with an olefin rubber in 5 wt. %, glass fibers in 12.5 wt. % and silica in 12.5 wt. %. A primary coil 24 comprises a wire body coated with PET (polyethylene telephthalate), silicone or wax as a separating member, and is wound around the primary spool. The growth of trees in the primary spool 23 restricted even when electrical discharges occur between a secondary coil and the primary coil and the primary spool is eroded by the electrical discharges, because silica is added in the primary spool.

    摘要翻译： 在用于发动机的棒式点火线圈装置中，初级线轴设置在次级线圈的外侧。 初级线轴由作为树脂基材的低熔点粘度和高流动性的PBT（聚对苯二甲酸丁二醇酯）制成。 将该树脂基材与5重量份的烯烃橡胶混合。 ％，玻璃纤维12.5重量％ ％和二氧化硅12.5重量％ ％。 初级线圈24包括涂覆有PET（聚对苯二甲酸乙二醇酯），硅树脂或蜡作为分离构件的线体，并缠绕在初级线轴上。 即使在次级线圈和初级线圈之间发生放电并且初级线轴被放电侵蚀时，初级线轴23中的树木的生长受到限制，因为二氧化硅被添加到初级线轴中。

    Ignition coil having coil case
    8.
    发明授权
    Ignition coil having coil case 失效
    点火线圈有线圈套

    公开(公告)号：US6114935A

    公开(公告)日：2000-09-05

    申请号：US082528

    申请日：1998-05-21

    申请人： Kazutoyo Oosuka ,  Yoshihiro Shimoide ,  Kazuhide Kawai ,  Jyunichi Wada

    发明人： Kazutoyo Oosuka ,  Yoshihiro Shimoide ,  Kazuhide Kawai ,  Jyunichi Wada

    IPC分类号： H01F38/12 ,  H01F27/04

    CPC分类号： H01F38/12

    摘要： An ignition coil has a coil case made of an insulating resin, including a head portion, a cylinder portion accommodating a primary coil, and a secondary coil and a high-voltage tower portion for fitting with a spark plug. At least one of those three portions is separately molded and then the portions are assembled to form the coil case. The longitudinal length of each of the three portions is less than a forming flow length of the insulating resin, thereby preventing inferior molding. Further, the structure of each molding die is simpler than that of the coil case for an integral molding. Therefore, the coil case of the ignition coil can be molded readily without molding defects, even when the coil case is elongated, formed thinner, and/or formed with an undercut portion.

    摘要翻译： 点火线圈具有由绝缘树脂制成的线圈壳体，包括头部，容纳初级线圈的圆筒部分和次级线圈以及用于与火花塞配合的高压塔架部分。 这三个部分中的至少一个被单独模制，然后这些部分被组装以形成线圈壳体。 三个部分中的每一个的纵向长度小于绝缘树脂的形成流动长度，从而防止劣化成型。 此外，每个成型模具的结构比用于整体成型的线圈箱的结构简单。 因此，即使当线圈壳体细长，形成较薄，和/或形成有底切部分时，也可以容易地模制点火线圈的线圈壳体而不造成模制缺陷。

    Ignition coil for internal combustion engines
    10.
    发明授权
    Ignition coil for internal combustion engines 有权
    内燃机点火线圈

    公开(公告)号：US09010306B2

    公开(公告)日：2015-04-21

    申请号：US13415252

    申请日：2012-03-08

    申请人： Kazuhide Kawai ,  Katsunori Akimoto ,  Gakuji Moriya ,  Makoto Kurahashi

    发明人： Kazuhide Kawai ,  Katsunori Akimoto ,  Gakuji Moriya ,  Makoto Kurahashi

    IPC分类号： H01F38/12 ,  F02P3/02 ,  H01F27/02

    CPC分类号： F02P3/02 ,  H01F27/022 ,  H01F38/12

    摘要： In an ignition coil for an internal combustion engine, a column section and a notched section are provided in a side wall section of a case section of the ignition coil. A ventilation opening is formed in an up/down direction in the column section. The ventilation opening communicates with a ventilation passage formed between a sealing rubber and the case section and is open in an upper end section. A cover surrounding the column section and covering the upper end section is provided in the side wall section. A sealing section sealing the notched section is provided in the cover. The ignition coil has a filler resin that fills a space within the case section being in continuous contact with the sealing section and the side wall section and fixing the cover to the side wall section.

    摘要翻译： 在内燃机的点火线圈中，在点火线圈的壳体部的侧壁部设置有柱部和切口部。 在列部分中沿上/下方向形成通风口。 通风口与形成在密封橡胶和壳体部之间的通风通路连通，并且在上端部开口。 在侧壁部中设置有围绕柱部并覆盖上端部的盖。 密封切口部分的密封部分设置在盖子中。 点火线圈具有填充树脂，其填充与密封部分和侧壁部分连续接触的壳体部分内的空间，并将盖子固定到侧壁部分。