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公开(公告)号：US10199162B2
公开(公告)日：2019-02-05
申请号：US15736836
申请日：2016-06-16
发明人： Masaaki Hori
IPC分类号： H01F38/12
摘要： An ignition coil includes primary and secondary coils, a center core inserted into a center hole of the primary coil and a center hole of the secondary coil, an annular side core that forms a magnetic circuit through which a first magnetic flux A generated by the primary coil by being joined to the center core permeates, and a permanent magnet that is disposed between the center core and the side core and that emits a second magnetic flux B directed opposite to the first magnetic flux A to apply a magnetic bias. The side core includes protruded portions that protrude towards lateral sides of a T-shaped horizontal portion of the center core, and gaps are provided between the lateral sides of the T-shaped horizontal portion of the center core and the protruded portions of the side core.
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公开(公告)号：US20180366269A1
公开(公告)日：2018-12-20
申请号：US15736836
申请日：2016-06-16
发明人： Masaaki HORI
IPC分类号： H01F38/12
CPC分类号： H01F38/12 , F02P3/02 , F02P15/00 , H01F3/12 , H01F2038/122 , H01F2038/127
摘要： An ignition coil includes primary and secondary coils, a center core inserted into a center hole of the primary coil and a center hole of the secondary coil, an annular side core that forms a magnetic circuit through which a first magnetic flux A generated by the primary coil by being joined to the center core permeates, and a permanent magnet that is disposed between the center core and the side core and that emits a second magnetic flux B directed opposite to the first magnetic flux A to apply a magnetic bias. The side core includes protruded portions that protrude towards lateral sides of a T-shaped horizontal portion of the center core, and gaps are provided between the lateral sides of the T-shaped horizontal portion of the center core and the protruded portions of the side core.
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公开(公告)号：US10190563B2
公开(公告)日：2019-01-29
申请号：US15427215
申请日：2017-02-08
IPC分类号： H01F27/02 , H01F27/30 , H01F27/29 , F02P3/02 , H01B3/40 , H01F27/32 , H01F38/12 , H01F41/12 , C08J3/20 , C08J3/24 , H01F27/24 , H01F27/28
摘要： An internal combustion engine ignition coil according to the present invention includes: a central iron core; a primary coil disposed on an outer circumference of the central iron core; a secondary coil disposed on an outer circumference of the primary coil; a side iron core disposed on an outer circumference of the secondary coil; and an insulating material sealing the central iron core, the primary coil, and the secondary coil on an inner side of the side iron core. A first layered silicate having a particle diameter less than a winding diameter of the secondary coil is present at a higher concentration in a vicinity of the secondary coil than that in a vicinity of the side iron core in the insulating material. A second layered silicate having a particle diameter greater than the winding diameter of the secondary coil is present at a higher concentration than that of the first layered silicate between the outer circumference side of the secondary coil and the side iron core. The second layered silicate has an aspect ratio of 50 or more, the aspect ratio being a ratio of a long side of a particle of the layered silicate to a thickness of the particle.
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4.发明申请公开(公告)号：US20170241393A1
公开(公告)日：2017-08-24
申请号：US15427215
申请日：2017-02-08
CPC分类号： F02P3/02 , C08J3/203 , C08J3/247 , C08J2363/02 , H01B3/40 , H01F27/24 , H01F27/28 , H01F27/327 , H01F38/12 , H01F41/127
摘要： An internal combustion engine ignition coil according to the present invention includes: a central iron core; a primary coil disposed on an outer circumference of the central iron core; a secondary coil disposed on an outer circumference of the primary coil; a side iron core disposed on an outer circumference of the secondary coil; and an insulating material sealing the central iron core, the primary coil, and the secondary coil on an inner side of the side iron core. A first layered silicate having a particle diameter less than a winding diameter of the secondary coil is present at a higher concentration in a vicinity of the secondary coil than that in a vicinity of the side iron core in the insulating material. A second layered silicate having a particle diameter greater than the winding diameter of the secondary coil is present at a higher concentration than that of the first layered silicate between the outer circumference side of the secondary coil and the side iron core. The second layered silicate has an aspect ratio of 50 or more, the aspect ratio being a ratio of a long side of a particle of the layered silicate to a thickness of the particle.
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公开(公告)号：US20180190425A1
公开(公告)日：2018-07-05
申请号：US15841401
申请日：2017-12-14
发明人： Masayuki KAMIKAWA , Yu Yasuda , Nobutake Tsuyuno , Toshiaki Ishii
CPC分类号： H01F38/12 , C08G59/42 , C08G59/5013 , C08G59/56 , C08G59/686 , C08K3/346 , C08K5/17 , C09D163/00 , H01B3/40 , H01F27/022 , H01F27/24 , H01F27/2823 , H01F27/324 , H01F27/327 , H01T15/00 , C08K3/34
摘要： An ignition coil for an internal combustion engine includes an iron core, a primary coil disposed around the iron core, a secondary coil disposed around the primary coil, and an insulating portion sealing the iron core, the primary coil, and the secondary coil. The insulating portion includes a resin and a linear aliphatic group-containing organic substance, and has a sea-island structure in which the organic substance is dispersed in a matrix of the resin.
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公开(公告)号：US10236117B2
公开(公告)日：2019-03-19
申请号：US15736836
申请日：2016-06-16
发明人： Masaaki Hori
IPC分类号： H01F38/12
摘要： An ignition coil includes primary and secondary coils, a center core inserted into a center hole of the primary coil and a center hole of the secondary coil, an annular side core that forms a magnetic circuit through which a first magnetic flux A generated by the primary coil by being joined to the center core permeates, and a permanent magnet that is disposed between the center core and the side core and that emits a second magnetic flux B directed opposite to the first magnetic flux A to apply a magnetic bias. The side core includes protruded portions that protrude towards lateral sides of a T-shaped horizontal portion of the center core, and gaps are provided between the lateral sides of the T-shaped horizontal portion of the center core and the protruded portions of the side core.
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公开(公告)号：US20180342347A1
公开(公告)日：2018-11-29
申请号：US15778347
申请日：2016-11-25
发明人： Hiromi IDE
摘要： An ignition coil for an internal combustion engine capable of effectively preventing leakage of noise occurring due to, for example, radio waves or unpleasant sounds generated by a spark discharge is provided. When an elastic O-ring 12, which is a main part of the invention and which is made of a annular elastic resin material, is used as securing means, with a simple structure, it is possible to hold a second cap 9 (on a second electrode side) of an electric noise suppressing resistor 10 and to close a gap formed between an inner wall surface of a resistor accommodation section 4 and the second cap 9 of the electric noise suppressing resistor 10. Therefore, this ignition coil is characterized in that, after securing the electric noise suppressing resistor 10 to the resistor accommodation section 4 by using the elastic O-ring 12, even if the inside of the resistor accommodation section 4 is uniformly filled with the insulating material 5, it is possible to prevent leakage to a location below the resistor accommodation section 4 from occurring.
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