公开(公告)号：JP2007027204A

公开(公告)日：2007-02-01

申请号：JP2005203385

申请日：2005-07-12

Applicant: Denso Corp ,  株式会社デンソー

Inventor： TAUCHI KOJI ,  TOKINAGA KOJI ,  KAWAI KAZUHIDE ,  SHIBATA KATSUTOSHI

IPC: H01F38/12

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

Abstract: PROBLEM TO BE SOLVED: To provide an ignition coil with which invasion of moisture to a connector pin can be prevented and the occurrence of short circuit or a contact failure can be prevented with a simple structure, and to provide a method of manufacturing the ignition coil. SOLUTION: A head 3 in the ignition coil is provided with a case 31, a flange 32 fixed to an engine case, a connector 33 which is electrically connected to an external part of the ignition coil, and a conductive terminal 4 forming a conductive path. The conductive terminal 4 is provided with the connector pin arranged in the connector 33, an exposure contact exposed to the surface of the flange 32, and a coupling part coupling the exposure contact and the connector pin. The terminal is inserted and formed in case resin 311 constituting the case part 31. The coupling part has a conductive projection 43 where a part of the conductive path is projected from within case resin 311. A whole periphery of a cross section in the conductive projection 43 is buried in insulating resin and a remaining part is buried in case resin 311. COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：提供一种能够防止对连接器销的水分侵入的点火线圈，并且能够以简单的结构防止短路或接触故障的发生，并且提供一种制造方法 点火线圈。 解决方案：点火线圈中的头3设置有壳体31，固定到发动机壳体的凸缘32，电连接到点火线圈的外部的连接器33和形成 导电路径。 导电端子4设置有布置在连接器33中的连接器引脚，暴露于凸缘32的表面的暴露接触件，以及联接该暴露触头和连接器引脚的耦合部件。 端子插入并形成在构成壳体部分31的树脂311的壳体中。耦合部分具有导电突起43，导电突起43的一部分从壳体树脂311中突出。导电突起中的横截面的整个周边 43被埋在绝缘树脂中，剩余部分被埋在树脂311的情况下。版权所有（C）2007，JPO＆INPIT

公开(公告)号：JP2005167012A

公开(公告)日：2005-06-23

申请号：JP2003404750

申请日：2003-12-03

Applicant: Denso Corp ,  株式会社デンソー

Inventor： AOYAMA MASAHIKO ,  KAWAI KAZUHIDE ,  TAKEYAMA SHOICHI ,  KOJIMA MASAMI

IPC: H01F38/12

Abstract: PROBLEM TO BE SOLVED: To reduce variation of strength in the circumferential direction of a peripheral core comprising a plurality of core members in an ignition coil and to ease positioning of the core members in their circumference direction. SOLUTION: The ignition coil is comprised of a central core 13, a primary coil 19 and a secondary coil 16, and a peripheral core 25. The peripheral core 25 is provided at least with a first core member 26 having a first slit 27 extending in the axial direction and a second core member 36 which is engaged with the second slit 37 inserted into the outer circumferential side of the first core member and extending in its axial direction. The first slit 27 and the second slit 37 are displaced with each other in the circumference direction. Furthermore, a third core member 31 having a third slit 32 may be provided between the first and second core members. The third slit 32 is displaced from the first and second slits 27 and 37 in the circumference direction. COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：为了减少包括点火线圈中的多个芯构件的周围芯的周向强度的变化，并且便于芯构件在其圆周方向上的定位。

解决方案：点火线圈由中心芯13，初级线圈19和次级线圈16以及外围芯25组成。外围芯25至少设置有第一芯构件26，第一芯构件26具有第一狭缝 27和与插入第一芯体的外周侧并沿其轴向延伸的第二狭缝37接合的第二芯构件36。 第一狭缝27和第二狭缝37在圆周方向上彼此位移。 此外，具有第三狭缝32的第三芯构件31可以设置在第一和第二芯构件之间。 第三狭缝32沿圆周方向从第一狭缝27和第二狭缝37移位。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：JP2005158516A

公开(公告)日：2005-06-16

申请号：JP2003396028

申请日：2003-11-26

Applicant: Denso Corp ,  株式会社デンソー

Inventor： KAWAI KAZUHIDE

IPC: F02P13/00 ,  F02P15/00 ,  H01T13/04 ,  H01T13/44

Abstract: PROBLEM TO BE SOLVED: To provide a mounting structure and a mounting method of an ignition plug in which the top end of a plug cap covering the ignition plug and the bottom end of a high voltage tower extending from an ignition coil are surely bonded to each other with an adhesive.
SOLUTION: A plug cap 32 includes a main body 33 in a shape of a cylinder which covers an ignition plug 15, and a receptacle part 35 in a shape of a ring which is formed on the outer surface in the axially middle part of the main body 33 and has an inserted part 38 in a shape of a ring and opened upward. A high voltage tower 40 bonded to the plug cap includes a cylindrical main body 41 which is fitted to the outer surface of the main body 33, and an cylindrical insertion part 45 which is formed on the bottom of the main body 41 and is inserted into an insertion hole 38 with a gap. An outer periphery side adhesive 55a is filled in an outer periphery side gap 46a between the outer periphery surface of the insertion part 45 and the opposite surface of the receptacle part 35, and an inner periphery side adhesive 55c is filled in an inner periphery side gap 46c between the inner periphery surface of the insertion part 45 and the surface of the main body 33. The adhesives 55a, 55c filled in the gaps between inner/outer peripheral surfaces of the insertion part 45 and opposite surfaces improve adhesive strength between the plug cap and the high voltage tower.
COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种火花塞的安装结构和安装方法，其中覆盖火花塞的塞帽的​​顶端和从点火线圈延伸的高压塔的底端是可靠的 用粘合剂彼此粘合。 解决方案：塞帽32包括覆盖火花塞15的气缸形状的主体33和形成在轴向中间部分的外表面上的环状的容纳部分35 并且具有环形形状的插入部38向上方开口。 接合到插头盖的高压塔40包括：安装在主体33的外表面上的圆柱形主体41和形成在主体41的底部上并插入到主体33的底部的圆柱形插入部45 具有间隙的插入孔38。 外周侧粘合剂55a填充在插入部45的外周面与容纳部35的相对面之间的外周侧间隙46a中，内周侧粘合剂55c填充在内周侧间隙 插入部45的内周面和主体33的表面之间的间隙46c。插入部45的内/外周面之间的间隙填充的粘合剂55a，55c提高了插头部45之间的粘合强度 和高压塔。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：JP2005090485A

公开(公告)日：2005-04-07

申请号：JP2004159862

申请日：2004-05-28

Applicant: Denso Corp ,  株式会社デンソー

Inventor： KAWAI KAZUHIDE ,  SATO YOSHITAKA

IPC: F02P15/00 ,  F02F7/00 ,  F02P13/00 ,  H01F38/12

Abstract: PROBLEM TO BE SOLVED: To provide an ignition device for an internal combustion engine capable of simplifying a forming die of a cylinder head cover 100 to reduce costs, and securely fixing an ignition coil 1 to the cylinder head cover 100, even when improving workability to insert the ignition coil 1 into the cylinder head cover 100. SOLUTION: The ignition coil 1 has a seal member 150 comprised of a seal cylindrical part 151 fitted to a coil housing diameter enlarged part 22 and a seal projecting annular part 152 which is protruded in an outer peripheral side of the seal cylindrical part 151, of which outermost peripheral end 155 is abutted on an inner peripheral face of a plug hole 101, and in which an angle θ between a seal upper face 153 and the inner peripheral face of the plug hole 101 is formed to be larger than an angle ψ between a seal lower face 154 and the inner peripheral face of the plug hole 101. COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：为了提供能够简化气缸盖罩100的成型模具以降低成本并且将点火线圈1可靠地固定到气缸盖罩100的内燃机的点火装置，即使当 提高了将点火线圈1插入气缸盖盖100中的可操作性。解决方案：点火线圈1具有密封构件150，密封构件150包括装配到线圈壳体直径扩大部分22的密封圆柱形部分151和密封突出环形 在密封圆筒部151的外周侧突出的部分152，其最外周端155抵接在塞孔101的内周面上，其中密封上表面153和 塞孔101的内周面形成为大于密封下表面154和插塞孔101的内周面之间的角度ψ。（C）2005，JPO＆NCIPI

公开(公告)号：JP2004324435A

公开(公告)日：2004-11-18

申请号：JP2003116128

申请日：2003-04-21

Applicant: Denso Corp ,  株式会社デンソー

Inventor： KATO HIDEYUKI ,  KAWAI KAZUHIDE

IPC: F02P13/00 ,  F02P15/00

Abstract: PROBLEM TO BE SOLVED: To provide an ignition device for an internal combustion engine capable of positively performing gas exchange between the inside of a plug hole and the outside of a cylinder head.
SOLUTION: An ignition coil 3 has a coil flange part 4, and an annular sealing plate 1 is interposed between a lower face 41 of the coil flange part 4 and a peripheral edge 210 of an opening part 21. A gas passage allowing gas exchange between the inside of the plug hole 20 and the outside of the cylinder head 2 is provided between the coil flange part and the sealing plate. The gas passage is formed by providing an upper face 105 of the sealing plate 1 with a groove part formed along the circumferential direction, an outer passage leading to the outside of the cylinder head 2, and an inner passage leading to the inside of the plug hole 20, and bringing the sealing plate 1 and the coil flange part 4 into close contact. The total number of the inner passage and outer passage provided is three or more.
COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种能够在插塞孔的内部和气缸盖的外部之间积极地进行气体交换的内燃机的点火装置。 解决方案：点火线圈3具有线圈凸缘部分4，并且环形密封板1插入在线圈凸缘部分4的下表面41和开口部分21的周缘210之间。允许 在线圈凸缘部和密封板之间设置有塞孔20的内部和气缸盖2的外部之间的气体交换。 气体通道通过设置密封板1的上表面105形成有沿圆周方向形成的槽部，通向气缸盖2的外侧的外部通路和通向插头内部的内部通路 并使密封板1和线圈凸缘部4紧密接触。 内通道和外通道的总数为三个或更多。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：JP2004100509A

公开(公告)日：2004-04-02

申请号：JP2002261498

申请日：2002-09-06

Applicant: Denso Corp ,  株式会社デンソー

Inventor： KAWAI KAZUHIDE

IPC: F02P15/00 ,  F02P3/02 ,  H01F38/12

CPC classification number: F02P3/02

Abstract: PROBLEM TO BE SOLVED: To provide an ignitor for an internal combustion engine, in which individual exchange of an ignition coil is implemented, and electrical connection with an engine side is easily implemented with simple structure. SOLUTION: The ignitor comprises ignition coils 2 each having a body part 2b housed in each of plug holes 5b of an engine head cover 5 and a head part 2a which has a coil side connector 2d and is larger in diameter than the body part 2b; a plate 3 pressing the ignition coils 2 to the engine head cover 5; and holders 4 each having a loose fit hole 4a, into which the ignition coil body part 2b is loosely inserted, and which is locked to the plate 3 while holding the ignition coil head part 2a. An engine side connector 4c electrically connected with the coil side connector 2b is integrally disposed to the holders 4. COPYRIGHT: (C)2004,JPO

公开(公告)号：JP2003328917A

公开(公告)日：2003-11-19

申请号：JP2002136931

申请日：2002-05-13

Applicant: Denso Corp ,  株式会社デンソー

Inventor： KAWAI KAZUHIDE

IPC: F02P15/00 ,  F02F1/24 ,  F02P3/02 ,  F02P13/00

CPC classification number: F02F1/242 ,  F02D2400/21 ,  F02D2400/22 ,  F02P3/02

Abstract: PROBLEM TO BE SOLVED: To provide an ignition coil assembling device easy to remove from the engine side.
SOLUTION: Waveform uneven parts 4b and 5c having the same periods are formed in a boss 5b formed at the lower end face of a collar 4 situated at a base member 3 and on an engine head cover 5. By fitting the recessed part of one uneven part of the wave-form uneven parts 4b and 5c in the protrusion part of the other uneven part, the base member 3 is mounted on the engine side. Meanwhile, by displacing a relative position between the waveform uneven parts 4b and 5c, the protrusion part of one uneven part of the waveform uneven parts 4b and 5c is moved over the protrusion part of the other uneven part, and the base member 3 is separated, the whole of the ignition coil collecting device 1 is floated up from the engine side and easily and reliably removed.
COPYRIGHT: (C)2004,JPO

Abstract translation: 要解决的问题：提供容易从发动机侧移除的点火线圈组装装置。 解决方案：具有相同周期的波形不均匀部分4b和5c形成在形成在位于基部构件3和发动机罩盖5上的轴环4的下端面处的凸起部5b中。通过将凹部 在另一个凹凸部的突出部分中的波形不均匀部分4b和5c的一个不均匀部分，基部构件3安装在发动机侧。 同时，通过移动波形不均匀部分4b和5c之间的相对位置，波形不均匀部分4b和5c的一个不均匀部分的突出部分在另一个凹凸部分的突出部分上移动，基底部件3分离 ，整个点火线圈收集装置1从发动机侧浮起并且容易且可靠地移除。 版权所有（C）2004，JPO

公开(公告)号：JP2000195734A

公开(公告)日：2000-07-14

申请号：JP37681198

申请日：1998-12-25

Applicant: UCHIYAMA MFG ,  DENSO CORP

Inventor： OKAMOTO MASARU ,  YASUI HIDETOSHI ,  IKEMOTO FUMINORI ,  KAWAI KAZUHIDE ,  OSUGA KAZUTOYO

IPC: H01F38/12 ,  F02P15/00 ,  F16J15/10

Abstract: PROBLEM TO BE SOLVED: To provide a seal material wherein seal action, buffer action, and dimensional tolerance accommodation are allowed. SOLUTION: The seal material 5 is attached between the end edge part of an outer peripheral core 21 constituting a coil case of an ignition coil and a high-voltage tower part 3. The seal material 5, comprising an elastic body, is attached, acting also as a buffer material, between the end edge part of outer peripheral core 21 housed in a cylinder part 2 and the high-voltage tower part 3, comprising a seal protruding part 51 a the top part, a protruding ring 52 in axial direction, and a thin-wall part of a barrel part 53 or a long cylinder part. Thus, being a buffer material effective to expansion/shrinkage, an excessive dimension is allowed to dimensional tolerance in assembly.

公开(公告)号：JP2000195733A

公开(公告)日：2000-07-14

申请号：JP36647098

申请日：1998-12-24

Applicant: DENSO CORP

Inventor： KAWAI KAZUHIDE ,  OSUGA KAZUTOYO

IPC: H01F27/32 ,  F02P15/00 ,  H01F38/12

Abstract: PROBLEM TO BE SOLVED: To generate a desired high-voltage by preventing a dielectric breakdown due to peeling of a primary spool from a resin insulating material. SOLUTION: The peeling at a bonding surface between a primary spool 23 and an epoxy resin does not develop toward a tip end part 23a side of the primary spool 23 from first flange part 231 and second flange part 231 formed on an outer peripheral surface of the primary spool 23, so the epoxy resin positioned on the extension of the tip end part 23a of the primary spool 23 is prevented from cracking. Thus, the dielectric breakdown between the primary spool 23 and a terminal plate is prevented, and application of a desired high- voltage to an ignition plug becomes possible.

公开(公告)号：JP2000182856A

公开(公告)日：2000-06-30

申请号：JP35408498

申请日：1998-12-14

Applicant: DENSO CORP

Inventor： ADACHI MASAYASU ,  SHIMOIDE SACHIHIRO ,  OSUGA KAZUTOYO ,  KAWAI KAZUHIDE

IPC: F02P3/02 ,  F02P15/00 ,  H01F38/12 ,  H01T13/44

Abstract: PROBLEM TO BE SOLVED: To provide an ignition coil which can be assembled easily, easily secure concentricity of primary and secondary windings and a central core part, and generate desired high voltage. SOLUTION: Since the outside diameter of a core body 13 is made larger than that of a permanent magnet 15, the permanent magnet 15 will not extrude from an outer peripheral surface 13b of the core body 13. Accordingly, when the central core 12 is inserted into a secondary spool 20, the central core 12 can be inserted easily and assembled without catching the secondary spool. Furthermore, since the central core 12 has no projection formed thereon, the central core 12 can be prevented from tilting in the secondary spool, so that the coaxial state of the primary and secondary spool and central core 12 can be secured easily. Thereby reduction in a voltage generated in the secondary coil can be prevented, and a desired high voltage can be applied.