IGNITION COIL FOR INTERNAL COMBUSTION ENGINE

• Main Author: KAWAI KAZUHIDE
• Format: Patent
• Language: English; Japanese
• Published: 23.03.2017
• Subjects: BASIC ELECTRIC ELEMENTS; BLASTING; COMBUSTION ENGINES; ELECTRICITY; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; IGNITION, OTHER THAN COMPRESSION IGNITION, FORINTERNAL-COMBUSTION ENGINES; INDUCTANCES; LIGHTING; MAGNETS; MECHANICAL ENGINEERING; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES; TRANSFORMERS; WEAPONS

PROBLEM TO BE SOLVED: To provide an ignition coil for an internal combustion engine, which is able to improve production efficiency.SOLUTION: An ignition coil 1 for an internal combustion engine according to the present embodiment comprises: a primary coil 11, a secondary coil 12, a center coil 13, an outer peripheral core 2, an igniter 3, a case 4, a connector part 5, and a relay member 6. The relay member 6 electrically connects the outer peripheral core 2 and a grounding terminal member 52. The relay member 6 has: a base part 61 disposed along a rear face of an engagement wall 50; an upward extension part 62 extending rearward from the base part 61; and a curved part 63 extended in a vertical direction Z orthogonal to a coil axial direction X while upwardly curved toward a rear direction from the rear end of the upward extension part 62. The base part 61 is in contact with a grounding inside terminal at one end in the vertical direction Z. The upward extension part 62 is disposed outside the igniter 3 in a horizontal direction Y. The curved part 63 is in pressure contact with the front face 211 of the outer peripheral core 2 while elastically deformed.SELECTED DRAWING: Figure 1 【課題】製造効率を向上することができる内燃機関用の点火コイルを提供すること。【解決手段】本実施形態の内燃機関用の点火コイル１は、一次コイル１１と二次コイル１２と中心コア１３と外周コア２とイグナイタ３とケース４とコネクタ部５と中継部材６とを有する。中継部材６は、外周コア２と接地端子部材５２とを電気的に接続する。中継部材６は、係合壁５０の後面に沿って配される基部６１と、基部６１から後方へ立設された立設部６２と、立設部６２の後端から、後方に凸となるように湾曲しつつコイル軸方向Ｘに直交する縦方向Ｚに延設された湾曲部６３とを有する。基部６１は、縦方向Ｚの一端において、接地内側端子に接触している。立設部６２は、横方向Ｙにおいてイグナイタ３よりも外側に配されている。湾曲部６３は、弾性変形しつつ外周コア２の前面２１１に圧接している。【選択図】図１