In one implementation, an apparatus is configured to aid in the manufacturing or assembling of electronic surface mount packages. The apparatus includes a common mode choke base configured to support a common mode choke. The apparatus includes terminal contacts coupled to the common mode choke base. The terminal contacts are aligned with wires connected to the common mode choke. The apparatus includes a support member including a wire supporting portion aligned with the wires connected to the common mode choke and a central portion configured to support the common mode choke base.

In one implementation, an apparatus is configured to aid in the manufacturing or assembling of electronic surface mount packages. The apparatus includes a common mode choke base configured to support a common mode choke. The apparatus includes terminal contacts coupled to the common mode choke base. The terminal contacts are aligned with wires connected to the common mode choke. The apparatus includes a support member including a wire supporting portion aligned with the wires connected to the common mode choke and a central portion configured to support the common mode choke base.

An inductance element includes a housing, a core, and a coil. The core is assembled in the housing. The coil includes a wire and two plate-shaped pins. The wire surrounds the core. The two plate-shaped pins are respectively assembled to two ends of the wire. The thickness of each of the plate-shaped pins is less than the diameter of the wire, and the two plate-shaped pins are exposed from the housing through two grooves of the housing, respectively.

An inductance element includes a housing, a core, and a coil. The core is assembled in the housing. The coil includes a wire and two plate-shaped pins. The wire surrounds the core. The two plate-shaped pins are respectively assembled to two ends of the wire. The thickness of each of the plate-shaped pins is less than the diameter of the wire, and the two plate-shaped pins are exposed from the housing through two grooves of the housing, respectively.

A power transmission device that transmits electric power to a power reception device in a contactless manner includes a power transmission coil unit, an electrical device connected to the power transmission coil unit, and an enclosure storing the power transmission coil unit and the electrical device. The enclosure includes an installation wall, an outer wall, a partitioning wall, and a cover portion closing an opening formed in a power transmission surface of the outer wall and allowing transmission of electric power by the power transmission coil unit. The partitioning wall is provided to partition the space in the enclosure into a coil-unit storing portion in which the cover portion is located and the power transmission coil unit is stored, and an electrical-device storing portion in which the electrical device is stored. The outer wall and the partitioning wall are made of metal.

A power transmission device that transmits electric power to a power reception device in a contactless manner includes a power transmission coil unit, an electrical device connected to the power transmission coil unit, and an enclosure storing the power transmission coil unit and the electrical device. The enclosure includes an installation wall, an outer wall, a partitioning wall, and a cover portion closing an opening formed in a power transmission surface of the outer wall and allowing transmission of electric power by the power transmission coil unit. The partitioning wall is provided to partition the space in the enclosure into a coil-unit storing portion in which the cover portion is located and the power transmission coil unit is stored, and an electrical-device storing portion in which the electrical device is stored. The outer wall and the partitioning wall are made of metal.

A reactor includes a terminal block having a plurality of terminals which is coupled to one end of a core body. A plurality of surge protection elements are connected to the plurality of terminals inside the terminal block. Input side extension portions and output side extension portions extending from coils are connected to the plurality of terminals of the terminal block, and a plurality of surge protection elements are connected to the input side extension portions and the output side extension portions, respectively.

A reactor includes a terminal block having a plurality of terminals which is coupled to one end of a core body. A plurality of surge protection elements are connected to the plurality of terminals inside the terminal block. Input side extension portions and output side extension portions extending from coils are connected to the plurality of terminals of the terminal block, and a plurality of surge protection elements are connected to the input side extension portions and the output side extension portions, respectively.

An ignition coil for an internal combustion engine according to the present embodiment includes a primary coil, a secondary coil, a center core, an outer circumferential core, an igniter, a case, a connector unit, and a relay member. The relay member electrically connects the outer circumferential core and a grounding terminal member. The relay member includes: a base portion provided along the rear surface of an engagement wall; a standing portion standing rearward of the base portion; and a curved portion that extends from a rear end of the standing portion in a vertical direction Z orthogonal to a coil axis direction X and is curved to protrude rearward. The base portion is in contact with an inner grounding terminal at one end in the vertical direction Z. The standing portion is provided further outward than the igniter in a horizontal direction Y. The curved portion is elastically deformed and is urged against a front surface of the outer circumferential core.

An ignition coil for an internal combustion engine according to the present embodiment includes a primary coil, a secondary coil, a center core, an outer circumferential core, an igniter, a case, a connector unit, and a relay member. The relay member electrically connects the outer circumferential core and a grounding terminal member. The relay member includes: a base portion provided along the rear surface of an engagement wall; a standing portion standing rearward of the base portion; and a curved portion that extends from a rear end of the standing portion in a vertical direction Z orthogonal to a coil axis direction X and is curved to protrude rearward. The base portion is in contact with an inner grounding terminal at one end in the vertical direction Z. The standing portion is provided further outward than the igniter in a horizontal direction Y. The curved portion is elastically deformed and is urged against a front surface of the outer circumferential core.