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1. 发明授权

US06191674B1 Ignition coil for internal combustion engine 有权
标题翻译：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。

2. 发明授权

US06781500B2 Ingition coil for internal combustion engine 有权
标题翻译：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。

3. 发明授权

US06809621B2 Internal combustion engine ignition coil, and method of producing the same 有权
标题翻译：内燃机点火线圈及其制造方法
公开(公告)号：US06809621B2
公开(公告)日：2004-10-26
申请号：US10343157
申请日：2003-01-29
申请人： Takashi Nagata , Kazutoyo Osuka , Atsuyuki Konishi , Kazuhide Kawai , Junichi Wada
发明人： Takashi Nagata , Kazutoyo Osuka , Atsuyuki Konishi , Kazuhide Kawai , Junichi Wada
IPC分类号： H01F2702
CPC分类号： H01B3/442 , H01F27/324 , H01F27/327 , H01F38/12 , H01F2038/122 , H01T13/44 , Y10T29/4902
摘要： An ignition coil (1) having a case (2), a core (22) installed in the case, a primary spool (25) disposed substantially coaxially around an outer circumference of the core within the case, a primary coil (26) comprising a wire wound around the primary spool, a secondary spool (23) disposed substantially coaxially around the outer circumference of the core within the case, a secondary coil (24) comprising a wire wound around the secondary spool and a resin insulating material (5) filled within the case, the ignition coil being characterized in that the spool of the primary and the secondary spools which is disposed between the secondary coil and the core and/or which is disposed between the secondary coil and the primary coil comprises a base resin having an adhesive strength to the resin insulating material which is less than that provided by polybutylene terephthalate and an insulation breakdown voltage which exceeds that provided by polyphenylene sulfide.

4. 发明授权

US06337617B1 Ignition coil device having spool including glass fiber and silica 失效
标题翻译：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。

5. 发明授权

US06559747B2 Ignition coil 有权
标题翻译：点火线圈
公开(公告)号：US06559747B2
公开(公告)日：2003-05-06
申请号：US09459643
申请日：1999-12-13
申请人： Yoshihiro Shimoide , Kazuhide Kawai
发明人： Yoshihiro Shimoide , Kazuhide Kawai
IPC分类号： H01E2702
CPC分类号： H01F38/12 , H01F2038/122
摘要： 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.
摘要翻译：为了防止填充在点火线圈壳体中的树脂填料的收缩力引起的塑料部件的裂纹，圆筒形线圈壳体同时容纳初级线圈和次级线圈，并填充树脂填充剂如环氧树脂线圈壳体在线圈壳体中的部件之间绝缘并固定部件。在线圈壳体的上部设置有环状的分隔构件，以将位于初级线圈和次级线圈内部的树脂填料分离到内部和外部。分隔构件由树脂填料的粘合强度低的聚丙烯（PP）树脂制成。分隔构件减小了外部树脂填料和内部树脂填料之间的收缩力，并且防止诸如二次线轴之类的塑料部件的裂纹。

6. 发明授权

US6114935A Ignition coil having coil case 失效
标题翻译：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。

7. 发明申请

US20050212636A1 Stick-type ignition coil having improved structure against crack or dielectric discharge 有权
公开(公告)号：US20050212636A1
公开(公告)日：2005-09-29
申请号：US11137559
申请日：2005-05-26
申请人： Kazuhide Kawai , Norihiro Adachi , Yoshimi Nakase , Tomonari Chiba
发明人： Kazuhide Kawai , Norihiro Adachi , Yoshimi Nakase , Tomonari Chiba
IPC分类号： H01F27/02 , H01F27/32 , H01F38/12
CPC分类号： H01F38/12 , H01F27/022 , H01F27/325 , H01F27/327 , H01F2038/122 , H01F2038/125
摘要： A stick-type ignition coil have a central core, a cylindrical member, primary spool, primary coil, secondary spool, secondary coil, outer core and a resin insulator. The two longitudinal end corners and faces of the core are covered by respective buffer members. The inner circumferential corners of the outer core is supported by ring members. Some of the members disposed radially inside and other members disposed radially outside of the inside members are held slidably to each other in the ignition coil. The spools are made of resin containing a rubber in excess of 5 weight percent and reinforcing materials. The resin insulator contains a flexible material.

8. 发明授权

US06930583B2 Stick-type ignition coil having improved structure against crack or dielectric discharge 有权
标题翻译：具有改进的抗裂纹或介电放电结构的棒式点火线圈
公开(公告)号：US06930583B2
公开(公告)日：2005-08-16
申请号：US10625697
申请日：2003-07-24
申请人： Kazuhide Kawai , Norihiro Adachi , Yoshimi Nakase , Tomonari Chiba
发明人： Kazuhide Kawai , Norihiro Adachi , Yoshimi Nakase , Tomonari Chiba
IPC分类号： H01F27/02 , H01F27/32 , H01F38/12 , H01F27/30
CPC分类号： H01F38/12 , H01F27/022 , H01F27/325 , H01F27/327 , H01F2038/122 , H01F2038/125
摘要： A stick-type ignition coil have a central core, a cylindrical member, primary spool, primary coil, secondary spool, secondary coil, outer core and a resin insulator. The two longitudinal end corners and faces of the core are covered by respective buffer members. The inner circumferential corners of the outer core is supported by ring members. Some of the members disposed radially inside and other members disposed radially outside of the inside members are held slidably to each other in the ignition coil. The spools are made of resin containing a rubber in excess of 5 weight percent and reinforcing materials. The resin insulator contains a flexible material.
摘要翻译：棒状点火线圈具有中心芯，圆柱形构件，初级线圈，初级线圈，次级线圈，次级线圈，外芯和树脂绝缘体。芯的两个纵向端角和面被相应的缓冲构件覆盖。外芯的内圆周角由环构件支撑。设置在径向内侧的一些构件和设置在内侧构件的径向外侧的其他构件在点火线圈中彼此可滑动地保持。阀芯由含有超过5重量％的橡胶的树脂和增强材料制成。树脂绝缘体包含柔性材料。

9. 发明授权

US06995644B2 Stick-type ignition coil having improved structure against crack or dielectric discharge 有权
公开(公告)号：US06995644B2
公开(公告)日：2006-02-07
申请号：US11137559
申请日：2005-05-26
申请人： Kazuhide Kawai , Norihiro Adachi , Yoshimi Nakase , Tomonari Chiba
发明人： Kazuhide Kawai , Norihiro Adachi , Yoshimi Nakase , Tomonari Chiba
IPC分类号： H01F27/30
CPC分类号： H01F38/12 , H01F27/022 , H01F27/325 , H01F27/327 , H01F2038/122 , H01F2038/125
摘要： A stick-type ignition coil have a central core, a cylindrical member, primary spool, primary coil, secondary spool, secondary coil, outer core and a resin insulator. The two longitudinal end corners and faces of the core are covered by respective buffer members. The inner circumferential corners of the outer core is supported by ring members. Some of the members disposed radially inside and other members disposed radially outside of the inside members are held slidably to each other in the ignition coil. The spools are made of resin containing a rubber in excess of 5 weight percent and reinforcing materials. The resin insulator contains a flexible material.

10. 发明申请

US20050077990A1 Stick-type ignition coil having improved structure against crack or dielectric discharge 有权
公开(公告)号：US20050077990A1
公开(公告)日：2005-04-14
申请号：US10625697
申请日：2003-07-24
申请人： Kazuhide Kawai , Norihiro Adachi , Yoshimi Nakase , Tomonari Chiba
发明人： Kazuhide Kawai , Norihiro Adachi , Yoshimi Nakase , Tomonari Chiba
IPC分类号： H01F27/02 , H01F27/32 , H01F38/12
CPC分类号： H01F38/12 , H01F27/022 , H01F27/325 , H01F27/327 , H01F2038/122 , H01F2038/125
摘要： A stick-type ignition coil have a central core, a cylindrical member, primary spool, primary coil, secondary spool, secondary coil, outer core and a resin insulator. The two longitudinal end corners and faces of the core are covered by respective buffer members. The inner circumferential corners of the outer core is supported by ring members. Some of the members disposed radially inside and other members disposed radially outside of the inside members are held slidably to each other in the ignition coil. The spools are made of resin containing a rubber in excess of 5 weight percent and reinforcing materials. The resin insulator contains a flexible material.

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