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：US06622712B2

公开(公告)日：2003-09-23

申请号：US10341256

申请日：2003-01-14

申请人： Hidetoshi Nakashima ,  Kazutoyo Osuka

发明人： Hidetoshi Nakashima ,  Kazutoyo Osuka

IPC分类号： F02P300

CPC分类号： H01F27/327 ,  H01F38/12 ,  H01F2038/122

摘要： An ignition coil includes a center core, a primary coil a secondary coil, a coil housing, a tower housing disposed under the coil housing, and a high tension terminal disposed inside the tower housing. The high tension terminal has an upper flange disposed at a first circumferential gap opposite the inside surface of the tower housing and a middle barrel disposed at a second circumferential gap opposite the inside surface of the coil housing. The first circumferential gap is made smaller than the second circumferential gap. The tower housing or the upper flange has a void-purging passage for purging air from the insulation resinous members when filled in the coil housing.

摘要翻译： 点火线圈包括中心芯，初级线圈，次级线圈，线圈壳体，设置在线圈壳体下方的塔架壳体，以及设置在塔壳体内部的高压端子。 高压端子具有设置在与塔壳体的内表面相对的第一周向间隙处的上凸缘和设置在与线圈壳体的内表面相对的第二周向间隙处的中筒。 使第一周向间隙小于第二周向间隙。 塔壳体或上凸缘具有用于在填充在线圈壳体中时从绝缘树脂构件吹扫空气的空隙吹扫通道。

公开(公告)号：US06873238B2

公开(公告)日：2005-03-29

申请号：US10440126

申请日：2003-05-19

申请人： Masahiro Kondo ,  Kazutoyo Osuka ,  Shunichi Takeda

发明人： Masahiro Kondo ,  Kazutoyo Osuka ,  Shunichi Takeda

IPC分类号： F02P3/02 ,  H01F27/02 ,  H01F27/40 ,  H01F38/12 ,  H01F5/00

CPC分类号： F02P3/02 ,  F02D2400/18 ,  F02D2400/22 ,  H01F27/022 ,  H01F27/40 ,  H01F38/12 ,  H01F2038/125

摘要： An ignition coil has a connector electrically connected to an external circuit, an igniter for accommodating a switching element adapted to cause a current supplied from the connector to be intermittent, a primary coil portion for generating a predetermined voltage by the intermittent current, a secondary coil portion for stepping up the generated voltage and applying the resulting voltage to an ignition plug, and a resin insulating material which hardens in between the primary coil portion and the secondary coil portion to ensure insulation between the primary coil portion and the secondary coil portion. An outer shell of the igniter is formed of the resin insulating material.

摘要翻译： 点火线圈具有电连接到外部电路的连接器，用于容纳适于使从连接器供给的电流间歇的开关元件的点火器，用于通过间歇电流产生预定电压的初级线圈部分，次级线圈 部分，用于升高产生的电压并将所得到的电压施加到火花塞;以及树脂绝缘材料，其在初级线圈部分和次级线圈部分之间硬化，以确保初级线圈部分和次级线圈部分之间的绝缘。 点火器的外壳由树脂绝缘材料形成。

公开(公告)号：US06192873B1

公开(公告)日：2001-02-27

申请号：US09419899

申请日：1999-10-18

申请人： Norihiro Adachi ,  Kazutoyo Osuka

发明人： Norihiro Adachi ,  Kazutoyo Osuka

IPC分类号： H01F2728

CPC分类号： H01F38/12

摘要： A stick-type ignition coil to be directly connected to a spark plug via a spring. A high tension case containing a high tension terminal and a spring is integrally connected to the bottom end of a high tension generating portion of the ignition coil. The high tension terminal and the spring are separately supported in the high tension case before the spark plug is connected to the ignition coil. When the spark plug is connected, the spring is compressed and contacts the high tension terminal, thereby making electrical contact between the ignition coil and the spark plug. Since the spring and the high tension terminal are supported on separate positions in the case, the spring can be properly compressed without being distorted or jammed between the high tension terminal and the case.

摘要翻译： 棒状点火线圈，通过弹簧与火花塞直接连接。 包含高压端子和弹簧的高压箱一体地连接到点火线圈的高压发生部分的底端。 在火花塞连接到点火线圈之前，高压端子和弹簧分别支撑在高压力箱中。 当火花塞连接时，弹簧被压缩并接触高压端子，从而在点火线圈和火花塞之间进行电接触。 由于弹簧和高压端子支撑在壳体的分离位置上，所以可以适当地压缩弹簧，而不会在高压端子和壳体之间变形或卡住。

公开(公告)号：US20050146410A1

公开(公告)日：2005-07-07

申请号：US11052291

申请日：2005-02-08

申请人： Masahiro Kondo ,  Kazutoyo Osuka ,  Shunichi Takeda

发明人： Masahiro Kondo ,  Kazutoyo Osuka ,  Shunichi Takeda

IPC分类号： F02P3/02 ,  H01F27/02 ,  H01F27/40 ,  H01F38/12

CPC分类号： F02P3/02 ,  F02D2400/18 ,  F02D2400/22 ,  H01F27/022 ,  H01F27/40 ,  H01F38/12 ,  H01F2038/125

摘要： An ignition coil has a connector electrically connected to an external circuit, an igniter for accommodating a switching element adapted to cause a current supplied from the connector to be intermittent, a primary coil portion for generating a predetermined voltage by the intermittent current, a secondary coil portion for stepping up the generated voltage and applying the resulting voltage to an ignition plug, and a resin insulating material which hardens in between the primary coil portion and the secondary coil portion to ensure insulation between the primary coil portion and the secondary coil portion. An outer shell of the igniter is formed of the resin insulating material.

摘要翻译： 点火线圈具有电连接到外部电路的连接器，用于容纳适于使从连接器供给的电流间歇的开关元件的点火器，用于通过间歇电流产生预定电压的初级线圈部分，次级线圈 部分，用于升高产生的电压并将所得到的电压施加到火花塞;以及树脂绝缘材料，其在初级线圈部分和次级线圈部分之间硬化，以确保初级线圈部分和次级线圈部分之间的绝缘。 点火器的外壳由树脂绝缘材料形成。

公开(公告)号：US20050122196A1

公开(公告)日：2005-06-09

申请号：US11000266

申请日：2004-12-01

申请人： Norihito Fujiyama ,  Jyunichi Wada ,  Kazutoyo Osuka

发明人： Norihito Fujiyama ,  Jyunichi Wada ,  Kazutoyo Osuka

IPC分类号： F02P15/00 ,  H01F27/32 ,  H01F38/12 ,  H01F27/02

CPC分类号： H01F27/324 ,  H01F38/12

摘要： A small-diameter ignition coil includes a center core, a primary coil, a secondary coil, and a thin film tube. The primary and secondary coils are arranged on an outer circumferential side with respect to the center core. The thin film tube has a cylindrical shape. The thin film tube is arranged on an outer circumferential side with respect to one of the primary coil and the secondary coil that is arranged on an outer circumferential side with respect to the other of the primary coil and the secondary coil. The thin film tube is thermally resistive and electrically insulative. The thin film tube has wall thickness that is equal to or less than 0.35 mm. An electrically insulative resin is filled in a gap formed between the thin film tube and one of the primary coil and the secondary coil, which is radially adjacent to the thin film tube.

摘要翻译： 小直径点火线圈包括中心芯，初级线圈，次级线圈和薄膜管。 主和次级线圈相对于中心芯布置在外圆周侧。 薄膜管具有圆柱形状。 薄膜管相对于初级线圈和次级线圈中的另一方配置在外周侧的一次线圈和次级线圈的外周侧配置。 薄膜管是耐热和电绝缘的。 该薄膜管具有等于或小于0.35mm的壁厚。 电绝缘性树脂填充在薄膜管与初级线圈和次级线圈中的与薄膜管径向相邻的一个之间形成的间隙。

公开(公告)号：US06662794B2

公开(公告)日：2003-12-16

申请号：US10158227

申请日：2002-05-31

申请人： Takashi Nagata ,  Kazutoyo Osuka ,  Atsuyuki Konishi ,  Junichi Wada

发明人： Takashi Nagata ,  Kazutoyo Osuka ,  Atsuyuki Konishi ,  Junichi Wada

IPC分类号： H01F2702

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

摘要： An ignition coil according to the invention is an ignition coil having a case and a coil portion accommodated in the case. The case comprises a base resin whose dielectric breakdown voltage exceeds that of polyphenylene sulfide and whose spiral flow length exceeds that of polybutyrene terphthalate. As the base resin has a high fluidity, there is only a limited risk that a defect such as a weld line is caused when molding a thin case. In addition, while the thickness of the case and the electrical insulation properties are in proportion to each other, the case comprising the base resin can ensure sufficient electrical insulation properties even if the case is formed thin.

摘要翻译： 根据本发明的点火线圈是具有容纳在壳体中的壳体和线圈部分的点火线圈。 该情况包括介电击穿电压超过聚苯硫醚的基本树脂，其螺旋流动长度超过聚对苯二甲酸丁二酯。 由于基础树脂具有高的流动性，所以在成型薄壳时引起诸如焊接线之类的缺陷的风险很小。 此外，虽然壳体的厚度和电绝缘性能彼此成比例，但是即使壳体形成较薄，包括基础树脂的壳体也可以确保足够的电绝缘性能。

公开(公告)号：US07084729B2

公开(公告)日：2006-08-01

申请号：US11052291

申请日：2005-02-08

申请人： Masahiro Kondo ,  Kazutoyo Osuka ,  Shunichi Takeda

发明人： Masahiro Kondo ,  Kazutoyo Osuka ,  Shunichi Takeda

IPC分类号： H01F27/02

CPC分类号： F02P3/02 ,  F02D2400/18 ,  F02D2400/22 ,  H01F27/022 ,  H01F27/40 ,  H01F38/12 ,  H01F2038/125

摘要： An ignition coil has a connector electrically connected to an external circuit, an igniter for accommodating a switching element adapted to cause a current supplied from the connector to be intermittent, a primary coil portion for generating a predetermined voltage by the intermittent current, a secondary coil portion for stepping up the generated voltage and applying the resulting voltage to an ignition plug, and a resin insulating material which hardens in between the primary coil portion and the secondary coil portion to ensure insulation between the primary coil portion and the secondary coil portion. An outer shell of the igniter is formed of the resin insulating material.

公开(公告)号：US07075401B2

公开(公告)日：2006-07-11

申请号：US11000266

申请日：2004-12-01

申请人： Norihito Fujiyama ,  Jyunichi Wada ,  Kazutoyo Osuka

发明人： Norihito Fujiyama ,  Jyunichi Wada ,  Kazutoyo Osuka

IPC分类号： H01F27/30

CPC分类号： H01F27/324 ,  H01F38/12

摘要： A small-diameter ignition coil includes a center core, a primary coil, a secondary coil, and a thin film tube. The primary and secondary coils are arranged on an outer circumferential side with respect to the center core. The thin film tube has a cylindrical shape. The thin film tube is arranged on an outer circumferential side with respect to one of the primary coil and the secondary coil that is arranged on an outer circumferential side with respect to the other of the primary coil and the secondary coil. The thin film tube is thermally resistive and electrically insulative. The thin film tube has wall thickness that is equal to or less than 0.35 mm. An electrically insulative resin is filled in a gap formed between the thin film tube and one of the primary coil and the secondary coil, which is radially adjacent to the thin film tube.

摘要翻译： 小直径点火线圈包括中心芯，初级线圈，次级线圈和薄膜管。 主和次级线圈相对于中心芯布置在外圆周侧。 薄膜管具有圆柱形状。 薄膜管相对于初级线圈和次级线圈中的另一方配置在外周侧的一次线圈和次级线圈的外周侧配置。 薄膜管是耐热和电绝缘的。 该薄膜管具有等于或小于0.35mm的壁厚。 电绝缘性树脂填充在薄膜管与初级线圈和次级线圈中的与薄膜管径向相邻的一个之间形成的间隙。

公开(公告)号：US06653922B2

公开(公告)日：2003-11-25

申请号：US10180065

申请日：2002-06-27

申请人： Masafuyu Sano ,  Kazutoyo Osuka ,  Norihiro Adachi ,  Yoshihiro Shimoide ,  Osamu Sugie ,  Kaneo Buma ,  Katsunori Akimoto ,  Atsuyuki Konishi ,  Masaharu Shimohata ,  Yoshitaka Sato

发明人： Masafuyu Sano ,  Kazutoyo Osuka ,  Norihiro Adachi ,  Yoshihiro Shimoide ,  Osamu Sugie ,  Kaneo Buma ,  Katsunori Akimoto ,  Atsuyuki Konishi ,  Masaharu Shimohata ,  Yoshitaka Sato

IPC分类号： H01F2702

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

摘要： An ignition coil includes a housing which contains a central core portion, an inner spool having a first winding, and an outer spool having a second winding. The inner spool extends outward of the central core portion. The outer spool extends outward of the inner spool. A locating member includes a locating rib adjacent to an upper portion of the central core portion. The locating rib is in a gap between the inner spool and the central core portion, and locates the inner spool and the central core portion relative to each other. Insulating resin injected into the housing provides insulation among parts in the housing. At least one of the inner spool and the locating member has a void-escape passage which connects the gap and an outside of the inner spool with each other, and which allows a void to escape from the injected insulating resin in the gap.