WO2012121177A1 - 内燃機関用点火コイル - Google Patents
内燃機関用点火コイル Download PDFInfo
- Publication number
- WO2012121177A1 WO2012121177A1 PCT/JP2012/055474 JP2012055474W WO2012121177A1 WO 2012121177 A1 WO2012121177 A1 WO 2012121177A1 JP 2012055474 W JP2012055474 W JP 2012055474W WO 2012121177 A1 WO2012121177 A1 WO 2012121177A1
- Authority
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- WIPO (PCT)
- Prior art keywords
- ignition coil
- internal combustion
- combustion engine
- coil
- air passage
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/12—Ignition, e.g. for IC engines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P3/00—Other installations
- F02P3/02—Other installations having inductive energy storage, e.g. arrangements of induction coils
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P13/00—Sparking plugs structurally combined with other parts of internal-combustion engines
Definitions
- the present invention relates to an ignition coil for an internal combustion engine that supplies a high voltage to generate a spark discharge in an ignition plug of the internal combustion engine, and more particularly to an ignition coil for an internal combustion engine that is suitable for waterproofing a plug hole.
- a conventional ignition coil for an internal combustion engine in order to facilitate the exhaustion and suction of the air in the plug hole generated when the temperature in the plug hole changes or when the ignition coil is detached,
- the external atmospheric pressure side communicates with an air passage provided at the boundary between the outer periphery of the ignition coil and the plug hole seal.
- the temperature of the plug hole decreases due to changes in the ambient temperature, flooding of the internal combustion engine, etc., and the pressure in the plug hole changes to try to reach equilibrium with the outside air, so a negative pressure that sucks in outside air is generated.
- the negative pressure may cause water to enter the plug hole from the outside through the atmosphere side opening of the air passage.
- a small air passage is provided in front of the pool portion (atmosphere side) for storing water so that water does not easily enter the pool portion.
- the air passage By reducing the size of the air passage, it is difficult for water to enter the pool portion.
- the ignition coil once water enters the pool portion, it is difficult to drain water. Therefore, under an environmental condition in which the ignition coil temporarily repeats a complete submerged state, it is possible to secure a high waterproof property that suppresses water intrusion into the plug hole, and the drainage property is low, and the pool portion is accumulated. There was a risk of water entering the plug hole.
- An object of the present invention is to provide an ignition coil for an internal combustion engine with improved drainage while ensuring high waterproofness that suppresses water intrusion into a plug hole.
- the present invention is provided to close a coil portion that generates a high voltage, a coil case that houses the coil portion, and an opening of a plug hole to which a spark plug is attached.
- Internal combustion engine ignition having a plug hole seal formed, a space defined by an outer peripheral wall provided on the outer side of the coil case, and an air passage for ventilating the space and the plug hole
- the coil is connected to the other end of the air passage whose one end communicates with the plug hole by a small hole at the end opposite to the spark plug connection side, and the spark plug connection side Is opened to the atmosphere side by an opening having a larger passage area than the small hole.
- Such a configuration can improve drainage while ensuring high water resistance while suppressing water intrusion into the plug hole.
- the space and the air passage are formed integrally with the coil case, and the end of the space opposite to the spark plug connection side is sealed. A part of the air passage that connects the plug hole and the space through the small hole is formed by the sealing member.
- the air passage is formed integrally with the coil case, and the space portion is formed by a side case fixed later to the coil case. is there.
- the air passage is arranged in the center 1/3 in the width direction in the space portion.
- the space portion includes the small hole formed along the insertion direction of the spark plug into the plug hole at the end opposite to the spark plug connection side, A horizontal passage that connects the air passage and the small hole is formed by the sealing member, and the air passage extends along the insertion direction of the ignition coil into the plug hole. It is connected.
- the air passage has a stepped or tapered portion at the connection portion with the small hole, and the cross-sectional area of the air passage is wider than the small hole. It is.
- a projection-shaped portion formed by the coil case and projecting toward the sealing member is formed on the horizontal portion of the stepped or tapered portion of the air passage. Is formed.
- a projection shape is formed integrally with the coil case around the connection portion of the air passage with the plug hole and faces the side opposite to the ignition plug connection side. ing.
- a protrusion protruding from the outer peripheral wall so as to cover the periphery of the opening of the space portion is formed on the outer peripheral wall for forming the space portion.
- FIG. 3 is a cross-sectional view taken along line AA in FIG. 2. It is sectional drawing which shows the structure of the ignition coil for internal combustion engines by the 2nd Embodiment of this invention. It is sectional drawing which shows the structure of the ignition coil for internal combustion engines by the 3rd Embodiment of this invention. It is sectional drawing which shows the structure of the ignition coil for internal combustion engines by the 4th Embodiment of this invention. It is sectional drawing which shows the structure of the ignition coil for internal combustion engines by the 5th Embodiment of this invention.
- FIG. 1 is a cross-sectional view showing a configuration of an ignition coil for an internal combustion engine according to a first embodiment of the present invention.
- FIG. 2 is another sectional view of FIG. 3 is a cross-sectional view taken along the line AA in FIG.
- an internal combustion engine ignition coil 1 is an independent ignition type internal combustion engine ignition coil that is mounted in a plug hole 2 of each cylinder formed in a cylinder head of an internal combustion engine and is directly connected to an ignition plug 21 for use. is there.
- the internal combustion engine ignition coil 1 includes a connector 16. Electric power is supplied from an external battery to the igniter 17 and the coil unit 3 inside the internal combustion engine ignition coil 1 via the internal terminal of the connector 16, and the internal engine ignition unit is supplied from an external engine control unit (ECU). An ignition signal is supplied to the igniter 17 in the coil 1.
- the ignition coil 1 includes an igniter 17 that switches in response to an ignition signal from the ECU, a coil portion 3, a coil case 4, and a plug hole seal 5.
- the coil unit 3 includes a primary coil, a secondary coil, a laminated core, and the like, and generates a high voltage.
- the coil case 4 accommodates the igniter 17 and the coil part 3 and is made of a thermoplastic resin.
- the plug hole seal 5 is provided between the coil case 4 and the plug hole 2 in order to close the opening of the plug hole 2.
- the plug hole 2 is formed for each cylinder in the cylinder head CH of the internal combustion engine.
- a spark plug 21 is attached to the cylinder head CH by screwing under the plug hole 2.
- the lower part of the coil case 4 is sealed with a metal terminal 19.
- the coil part 3 is inserted into the coil case 4.
- a pin 18 is fixed to the secondary bobbin of the coil portion of the coil portion 3 and is connected to the secondary coil.
- the pin 18 is made of, for example, phosphor bronze and has a spring property. In a state where the coil portion 3 is inserted into the coil case 4, the end portion of the pin 18 is in contact with the terminal 19 and is conductive due to the spring property of the pin 18.
- An insulating resin 8 such as an epoxy resin is injected into the coil case 4 to seal the igniter 17 and the coil portion 3.
- the plug hole seal 5 is attached to the lower part of the coil case 4.
- the plug hole seal 5 is made of silicon rubber or the like.
- the plug hole seal 5 extends in a cylindrical shape in the downward direction in the figure, and is inserted into the electrode terminal at the top of the spark plug 21.
- a metal spring 20 is inserted into the cylindrical space of the plug hole seal 5 to electrically connect the terminal 19 and the upper electrode terminal of the spark plug 21, thereby generating a high voltage generated in the coil portion 3.
- a pulse is supplied to the spark plug 21.
- a mounting portion 4 TB is integrally formed on the side portion of the coil case 4.
- a mounting seat ZA is formed integrally with the cylinder head CH on the cylinder head CH.
- the mounting portion 4TB is fixed to the mounting seat ZA with a bolt BT or the like, and the ignition coil 1 is fixed to the upper portion of the cylinder head CH.
- the space 6 and the air passage 9 are integrally formed on the outer side in the right direction in the drawing of the coil case 4.
- the space 6 is defined by an outer peripheral wall provided on the outer side of the coil case 4.
- the space 6 and the air passage 9 communicate with each other at their upper portions. That is, the space 6 is connected to the upper end of the air passage 9 through a small hole at the end opposite to the spark plug connection side.
- the small holes are rectangular holes indicated by reference numeral 9 in FIG.
- the space 6 has a lower surface such as a cup turned upside down as an “open opening (when the entire surface is open, the mold can be easily removed)”.
- the space 6 is a passage having a larger cross-sectional area than the air passage 9. That is, the space 6 is opened to the atmosphere side by an opening having an end portion on the spark plug connection side having a larger passage area than the small hole.
- the plug hole seal 5 is formed with a small through hole 5HO. Further, a groove portion 4GR is formed on the outer surface of the coil case 4.
- the groove portion 4GR is, for example, a minute one having a width of 0.8 mm and a depth of about 0.4 mm.
- the groove portion 4GR maintains the groove state.
- the air passage 9 and the through hole 4HO can communicate with each other.
- the ventilation path between the plug hole 2 and the outside air is in the order of the space portion 6, the air passage 9, the groove portion 4GR, the through hole 5HO, and the plug hole 2.
- the cylinder head CH When the ignition coil 1 is temporarily submerged due to water, the cylinder head CH is cooled, the temperature of the plug hole 2 is lowered, and the pressure in the plug hole is changed to be balanced with the outside air. A negative pressure that sucks in outside air is generated in order to try to become water, and the negative pressure causes water to enter the plug hole 2.
- the space portion 6 is completely submerged in a state that the cup is turned upside down. Also stores air. By making the volume of the space 6 larger than the volume shrinkage due to the temperature change in the plug hole, even if the water level in the space 6 rises, the inlet (air) of the air passage 9 continuous with the plug hole Since it does not go up to the upper part of the passage 9, water does not enter the plug hole.
- the volume of the space 6 is 4 cc, for example.
- the volume of the plug hole 2 is about 40 cc, and the volume shrinkage due to the temperature change in the plug hole in this case is about 2 cc. Therefore, the volume of the space 6 is larger than the volume shrinkage (2 cc). ing.
- the lower surface of the space 6 is “open opening (when the entire surface is open, it is easy to remove the mold)”, the water level around the ignition coil 1 is below the lower surface of the space 6. At that time, the water sucked up by the space 6 due to the negative pressure in the plug hole is instantaneously discharged into the space 6, so that the drainage is improved. Therefore, water intrusion into the plug hole can be suppressed even under environmental conditions in which the ignition coil 1 temporarily repeats a complete submerged state.
- the vehicle moves with water remaining in the space 6, the water inside moves and rebounds in the space 6, but as shown in FIG.
- the bounced water bounces along a route as shown by an arrow in FIG.
- the path indicated by the arrow is a path from the lower direction of the space 6 toward the upper direction.
- the air passage 9 is set within the center 1/3 of the space part 6. It is possible to prevent the bounced water from easily entering the air passage 9.
- the present embodiment even under environmental conditions in which the ignition coil repeats a complete submerged state temporarily, a high waterproof property that suppresses water intrusion into the plug hole is secured, Furthermore, by making the lower surface of the space part on the coil side part an open opening (when the entire surface is open, it is easy to remove the mold), a structure with high drainage can be obtained.
- FIG. 4 is a cross-sectional view showing a configuration of an ignition coil for an internal combustion engine according to the second embodiment of the present invention. 1 to 3 indicate the same parts.
- the shape of the coil case 4A used for the ignition coil 1A is different from the coil case 4 shown in FIG. 2 in the following points. That is, the space 6A and the air passage 9A are formed by the coil case 4A.
- An air passage inlet (small hole) 10 is provided in the upper portion of the space 6A, and the upper portion of the air passage inlet 10 and the upper portion of the air passage 9A. Is open. This opening (opening at the end of the space opposite to the spark plug connection side) is sealed with a sealing member 7 made of an elastic material. Further, the upper part of the sealing member 7 is cast with an insulating resin 8.
- the sealing member 7 forms a part of the air passage 9A that connects the plug hole and the space 6A through the small hole (air passage inlet 10).
- the air passage 9A is formed in the vertical upper surface direction from the space 6A, then in the horizontal direction, and finally in the vertical lower surface direction. That is, a horizontal passage that connects the air passage 9A and the small hole (air passage inlet 10) is formed by the sealing member 7 that covers both of them.
- the air passage 9A extends along the direction in which the ignition coil is inserted into the plug hole, and is connected to the plug hole 2 at its end. Other configurations are the same as those shown in FIGS.
- FIG. 5 is a cross-sectional view showing a configuration of an internal combustion engine ignition coil according to a third embodiment of the present invention. 1 to 3 indicate the same parts.
- the shape of the coil case 4B used for the ignition coil 1B is different from the coil case 4 shown in FIG. 2 in the following points. That is, although the space 6 is formed by the coil case 4B, the space 6B is created by attaching and fixing the side case 15 different from the coil case 4B to the coil case 4B by adhesion or the like. Thereby, the space part 6B of a larger volume is securable.
- Other configurations are the same as those shown in FIGS.
- FIG. 6 is a cross-sectional view showing a configuration of an internal combustion engine ignition coil according to a fourth embodiment of the present invention. 1 to 4 indicate the same parts.
- the shape of the coil case 4C used for the ignition coil 1C is different from the coil case 4 shown in FIG. 2 in the following points. That is, the space 6C and the air passage 9C are formed by the coil case 4C.
- An air passage inlet (small hole) 10 is provided at the upper portion of the space 6C, and the upper portion of the air passage inlet 10 and the upper portion of the air passage 9C. Is open. Further, when the air passage inlet 10 is stepped and water drops are attached to the air passage inlet 10 and a negative pressure is generated in the plug hole, the water drops rise from the air passage inlet 10 but rise. As the air passage cross-sectional area increases, the thickness of the water droplet becomes thinner, and finally the water droplet falls.
- the shape of the air passage inlet 10 may be a tapered shape portion in addition to the illustrated stepped shape.
- the horizontal portion in the middle of the air passage is formed by the coil case 4C, and the protrusion-shaped portion 11 facing the upper surface serves as a higher breakwater, making it difficult for water to get over.
- the protruding portion 11 protrudes toward the sealing member 7.
- the above-mentioned opening is sealed with a sealing member 7 made of an elastic material. Further, the upper part of the sealing member 7 is cast with an insulating resin 8.
- the air passage 9B is formed in the vertical upper surface direction from the space 6B, then in the horizontal direction, and finally in the vertical lower surface direction.
- protrusion-shaped portion 13 around the outlet 12 at the lower part of the air passage 9C, an area where water can be stored is created, so that water does not easily enter the outlet 12 of the air passage.
- the protrusion-shaped part 13 is provided around the connection part with the plug hole of the air passage 9C, and is formed integrally with the coil case. Moreover, the protrusion-shaped part 13 protrudes toward the opposite side to the spark plug connection side. Other configurations are the same as those shown in FIGS.
- FIG. 7 is a cross-sectional view showing a configuration of an internal combustion engine ignition coil according to a fifth embodiment of the present invention. 1 to 4 indicate the same parts.
- the shape of the coil case 4D used for the ignition coil 1D is different from the coil case 4A shown in FIG. 4 in the following points. That is, the protrusion 14 in the perpendicular direction is formed on the outer peripheral wall forming the space 6A of the coil case 4D.
- the protrusion 14 projects from the outer peripheral wall for forming the space 6A so as to cover the periphery of the opening of the space 6A.
- the protrusion 14 prevents water from concentrating on the lower surface side of the space portion 6A even when water having a high water pressure is applied to the ignition coil 1D, such as during high-pressure car washing. Infiltration of water can be suppressed.
- the height of the projection 14 may be any height that can be installed on the outer peripheral wall.
- the present invention refers to both a so-called plug-top type ignition coil in which the coil part is arranged above the plug hole and a so-called plug-hole type ignition coil in which the coil part is arranged in the plug hole. .
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
Description
図1は、本発明の第1の実施形態による内燃機関用点火コイルの構成を示す断面図である。図2は、図1の別断面図である。図3は、図2のA-A断面図である。
図4は、本発明の第2の実施形態による内燃機関用点火コイルの構成を示す断面図である。なお、図1~図3と同一符号は、同一部分を示している。
図5は、本発明の第3の実施形態による内燃機関用点火コイルの構成を示す断面図である。なお、図1~図3と同一符号は、同一部分を示している。
図6は、本発明の第4の実施形態による内燃機関用点火コイルの構成を示す断面図である。なお、図1~図4と同一符号は、同一部分を示している。
図7は、本発明の第5の実施形態による内燃機関用点火コイルの構成を示す断面図である。なお、図1~図4と同一符号は、同一部分を示している。
2…プラグホール
3…コイル部
4…コイルケース
5…プラグホールシール
6…空間部
7…封止部材
8…絶縁用樹脂
9…空気通路
10…空気通路入口
11…空気通路水平部突起
12…空気通路出口
13…空気通路出口付近突起
14…外周壁直角方向突起
15…サイドケース
16…コネクタ
17…イグナイタ
18…ピン
19…端子
20…スプリング
21…点火プラグ
Claims (9)
- 高電圧を発生させるコイル部と、
該コイル部を収容するコイルケースと、
点火プラグが取り付けられるプラグホールの開口部を閉塞するために設けられたプラグホールシールと、
前記コイルケースの外側部に設けられた外周壁で区画される空間部と、
該空間部と前記プラグホールとの通気を行うための空気通路とを有する内燃機関用点火コイルであって、
前記空間部は、点火プラグ接続側とは反対側の端部において、前記プラグホールに一端が連通する前記空気通路の他端部と小孔で接続され、且つ点火プラグ接続側の端部が前記小孔より大きな通路面積を有する開口によって大気側に開放されていることを特徴とした内燃機関用点火コイル。 - 請求項1記載の内燃機関用点火コイルにおいて、
前記空間部及び前記空気通路は、前記コイルケースに一体に成形されており、
前記空間部の点火プラグ接続側とは反対側の端部を封止する封止部材を備え、当該封止部材によって前記小孔を介して前記プラグホールと前記空間部とを接続する前記空気通路の一部が形成されていることを特徴とする内燃機関用点火コイル。 - 請求項1記載の内燃機関用点火コイルにおいて、
前記空気通路は、前記コイルケースに一体に成形されており、
前記空間部は、前記コイルケースに後付けで固定されたサイドケースにより形成されることを特徴とする内燃機関用点火コイル。 - 請求項1記載の内燃機関用点火コイルにおいて、
前記空気通路は、前記空間部内の幅方向の中央1/3内に配置したことを特徴とする内燃機関用点火コイル。 - 請求項2記載の内燃機関用点火コイルにおいて、
前記空間部は点火プラグ接続側とは反対側の端部に点火プラグのプラグホールへの挿入方向に沿って形成された前記小孔を備え、前記空気通路と前記小孔とを覆う前記封止部材によって両者を接続する水平方向通路が形成され、前記空気通路は点火コイルのプラグホールへの挿入方向に沿って延びその端部において前記プラグホールと接続されていることを特徴とする内燃機関用点火コイル。 - 請求項2記載の内燃機関用点火コイルにおいて、
前記空気通路は、前記小孔との接続部に段付きまたはテーパー形状部を有し、前記小孔よりも前記空気通路の断面積を広げたことを特徴とする内燃機関用点火コイル。 - 請求項6記載の内燃機関用点火コイルにおいて、
前記空気通路の前記段付きまたはテーパー形状部の中間の水平部に、前記コイルケースにより形成され、前記封止部材に向かって突出する突起形状部が形成されていることを特徴とする内燃機関用点火コイル。 - 請求項1記載の内燃機関用点火コイルにおいて、
前記空気通路の前記プラグホールとの接続部周辺に、前記コイルケースに一体により形成され、点火プラグ接続側とは反対側に向かった突起形状を備えていることを特徴とする内燃機関用点火コイル。 - 請求項1記載の内燃機関用点火コイルにおいて、
前記空間部を形成するための前記外周壁に、当該外周壁から前記空間部の前記開口周囲を覆うように突出する突起を形成していることを特徴とする内燃機関用点火コイル。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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CN201280008869.XA CN103380292B (zh) | 2011-03-04 | 2012-03-02 | 内燃机用点火线圈 |
EP12755277.6A EP2682594B1 (en) | 2011-03-04 | 2012-03-02 | Ignition coil for internal combustion engine |
BR112013021430-9A BR112013021430B1 (pt) | 2011-03-04 | 2012-03-02 | Bobina de ignição para motor de combustão interna |
US14/000,833 US9147522B2 (en) | 2011-03-04 | 2012-03-02 | Ignition coil for internal combustion engine |
JP2013503524A JP5997689B2 (ja) | 2011-03-04 | 2012-03-02 | 内燃機関用点火コイル |
Applications Claiming Priority (2)
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JP2011048043 | 2011-03-04 | ||
JP2011-048043 | 2011-03-04 |
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WO2012121177A1 true WO2012121177A1 (ja) | 2012-09-13 |
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PCT/JP2012/055474 WO2012121177A1 (ja) | 2011-03-04 | 2012-03-02 | 内燃機関用点火コイル |
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US (1) | US9147522B2 (ja) |
EP (1) | EP2682594B1 (ja) |
JP (1) | JP5997689B2 (ja) |
CN (1) | CN103380292B (ja) |
BR (1) | BR112013021430B1 (ja) |
WO (1) | WO2012121177A1 (ja) |
Cited By (5)
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JP2012186411A (ja) * | 2011-03-08 | 2012-09-27 | Denso Corp | 内燃機関用点火コイル |
JP2015002303A (ja) * | 2013-06-18 | 2015-01-05 | ダイヤモンド電機株式会社 | 内燃機関用点火コイル |
JP2016082193A (ja) * | 2014-10-22 | 2016-05-16 | 本田技研工業株式会社 | 点火コイル |
US20170263375A1 (en) * | 2014-09-08 | 2017-09-14 | Denso Corporation | Ignition coil for an internal combustion engine |
JP2018003770A (ja) * | 2016-07-06 | 2018-01-11 | 株式会社デンソー | 内燃機関用の点火コイル |
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JP6011385B2 (ja) * | 2013-02-12 | 2016-10-19 | 株式会社デンソー | 内燃機関用の点火コイル |
ITUB20161242A1 (it) * | 2016-03-02 | 2017-09-02 | Eldor Corp Spa | Prolunga siliconica per una bobina di accensione per motori endotermici, bobina di accensione contenente detta prolunga siliconica e metodo di assemblaggio di detta bobina di accensione |
CN114938697A (zh) * | 2019-12-10 | 2022-08-23 | 日立安斯泰莫株式会社 | 电路装置 |
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JP3131669B2 (ja) * | 1992-11-10 | 2001-02-05 | 本田技研工業株式会社 | 点火コイル一体結合型点火プラグキャップ |
JP3145880B2 (ja) * | 1994-11-22 | 2001-03-12 | 住友電装株式会社 | 内燃機関用点火プラグと点火コイルの接続構造 |
RU2287080C1 (ru) * | 2005-05-05 | 2006-11-10 | Михаил Пантелеймонович Брижинёв | Система зажигания двс |
JP4475218B2 (ja) * | 2005-10-13 | 2010-06-09 | 株式会社デンソー | 点火コイル |
JP4475220B2 (ja) * | 2005-10-24 | 2010-06-09 | 株式会社デンソー | 点火コイル |
JP2009212142A (ja) * | 2008-02-29 | 2009-09-17 | Denso Corp | 点火コイル及びその取付構造 |
JP4892599B2 (ja) * | 2009-10-09 | 2012-03-07 | 東洋電装株式会社 | エンジンのプラグホール防水装置 |
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- 2012-03-02 JP JP2013503524A patent/JP5997689B2/ja not_active Expired - Fee Related
- 2012-03-02 US US14/000,833 patent/US9147522B2/en active Active
- 2012-03-02 WO PCT/JP2012/055474 patent/WO2012121177A1/ja active Application Filing
- 2012-03-02 CN CN201280008869.XA patent/CN103380292B/zh active Active
- 2012-03-02 EP EP12755277.6A patent/EP2682594B1/en active Active
- 2012-03-02 BR BR112013021430-9A patent/BR112013021430B1/pt active IP Right Grant
Patent Citations (5)
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JPH09158820A (ja) * | 1995-12-06 | 1997-06-17 | Denso Corp | 内燃機関用点火コイル |
JP2006242123A (ja) * | 2005-03-04 | 2006-09-14 | Denso Corp | 点火コイル |
JP2007303401A (ja) * | 2006-05-12 | 2007-11-22 | Hitachi Ltd | 内燃機関用点火コイル装置 |
JP2008060188A (ja) * | 2006-08-30 | 2008-03-13 | Denso Corp | 点火コイル |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012186411A (ja) * | 2011-03-08 | 2012-09-27 | Denso Corp | 内燃機関用点火コイル |
JP2015002303A (ja) * | 2013-06-18 | 2015-01-05 | ダイヤモンド電機株式会社 | 内燃機関用点火コイル |
US20170263375A1 (en) * | 2014-09-08 | 2017-09-14 | Denso Corporation | Ignition coil for an internal combustion engine |
US10553350B2 (en) * | 2014-09-08 | 2020-02-04 | Denso Corporation | Ignition coil for an internal combustion engine |
JP2016082193A (ja) * | 2014-10-22 | 2016-05-16 | 本田技研工業株式会社 | 点火コイル |
JP2018003770A (ja) * | 2016-07-06 | 2018-01-11 | 株式会社デンソー | 内燃機関用の点火コイル |
Also Published As
Publication number | Publication date |
---|---|
EP2682594A4 (en) | 2014-12-17 |
BR112013021430A2 (pt) | 2016-10-25 |
EP2682594B1 (en) | 2021-05-12 |
EP2682594A1 (en) | 2014-01-08 |
BR112013021430B1 (pt) | 2021-08-24 |
US9147522B2 (en) | 2015-09-29 |
US20140043717A1 (en) | 2014-02-13 |
JP5997689B2 (ja) | 2016-09-28 |
JPWO2012121177A1 (ja) | 2014-07-17 |
CN103380292B (zh) | 2016-11-02 |
CN103380292A (zh) | 2013-10-30 |
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