Abstract: An inductor includes: a magnetic core; a conduction path penetrating the magnetic core; a pedestal portion including a core holding portion that holds the magnetic core, and support portions that support, when placed on a circuit board, electronic components at a height at which the electronic components can be accommodated on the circuit board side with respect to the core holding portion; and a shield portion that is provided on the circuit board side with respect to the magnetic core, and that shields a magnetic field generated by flow of electricity in the conduction path.

Abstract: A circuit structure includes: a circuit substrate provided with a conductive path and through holes that are electrically connected to the conductive path; a coil apparatus that includes coils 51 including terminal portions and a core made of a magnetic material; a heat dissipation member that includes a housing cavity that houses the coil apparatus, and on which the circuit substrate is laid; and grease that comes into contact with the inner surface of the housing cavity and the coil apparatus, and the terminal portions in the coil apparatus are inserted into the through holes and are soldered thereto.

Abstract: A circuit assembly that includes an inductor including a core; a fixation member to which the inductor is fixed; a base that is attached to the core, wherein: the fixation member is made of a first material having a coefficient of thermal expansion larger than a coefficient of thermal expansion of the core, and the base is made of a second material having a coefficient of thermal expansion larger than the coefficient of thermal expansion of the core and smaller than the coefficient of thermal expansion of the fixation member; and an adhesive layer that is disposed between the base and the fixation member, and that bonds the base and the fixation member together.

Abstract: A circuit assembly where the circuit board includes a first surface and a second surface that is opposite to the first surface and on which a plurality of bus bars are routed, the inductor includes a main body and a terminal that is led out from the main body and has a shape that is bent toward the circuit board, and a leading end of the terminal is connected through a screwing member to a bus bar of the plurality of bus bars exposed from an opening provided on the circuit board, the screwing member is held in an insulating holder housed in a housing recess provided in the heat dissipation plate, and the heat dissipation plate is overlaid so as to transfer heat on the circuit board on the second surface of the circuit board.

Abstract: An electrical junction box includes: a circuit board to which an electronic component is connected; and a frame positioned with respect to the circuit board. The frame integrally includes a sub frame that surrounds at least part of a periphery of the electronic component. The sub frame is provided with a holding portion that holds the electronic component in the holding portion.

Abstract: A circuit device 1 includes a circuit board, an inductor mounted on the circuit board, and a heat dissipation member to which the circuit board and the inductor are assembled. The inductor includes a case main body, and mounting pieces extending from the case main body in parallel with the circuit board. A heat dissipation member includes a main plate portion disposed along a heat dissipation surface on the opposite side of a mounting surface on which the inductor is mounted in the circuit board, and support post portions extending from the main plate portion and penetrating the circuit board and the mounting pieces . The circuit board and the mounting pieces are fixed to the support post portions by an adhesive.

Abstract: A circuit assembly includes: a substrate with an electrically conducting path; plate-shaped busbars that have connection portions connected to the electrically conducting path of the substrate, and are arranged in an orientation in which plate surfaces thereof intersects with a surface of the substrate; a heat discharge member that is laid on a side of the substrate opposite to the busbars, and is configured to discharge heat of the substrate; and a resin frame that extends along the busbars, and holds the busbars while being in intimate contact with the busbars, wherein the frame includes mounting portions mounted on at least either the substrate or the heat discharge member.

Abstract: An inductor includes: a magnetic core; a conduction path penetrating the magnetic core; a pedestal portion including a core holding portion that holds the magnetic core, and support portions that support, when placed on a circuit board, electronic components at a height at which the electronic components can be accommodated on the circuit board side with respect to the core holding portion; and a shield portion that is provided on the circuit board side with respect to the magnetic core, and that shields a magnetic field generated by flow of electricity in the conduction path.

Abstract: A circuit assembly includes: a circuit board; an inductor that is disposed on the circuit board, and that includes a coil including a winding portion made by winding a winding wire, and a core member; and a heat dissipation plate that is disposed on the opposite side of the surface of the circuit board on which the inductor is disposed, wherein a through hole is provided in a region of the circuit board that corresponds to the inductor, and a receiving protrusion that penetrates the through hole and protrudes to a surface side of the circuit board on which the inductor is disposed, and that is in heat transfer contact with the coil and the core member is provided in a region that corresponds to the through hole in the heat dissipation plate.

Abstract: An electrical junction box includes: a circuit board to which an electronic component is connected; and a frame positioned with respect to the circuit board. The frame integrally includes a sub frame that surrounds at least part of a periphery of the electronic component. The sub frame is provided with a holding portion that holds the electronic component in the holding portion.

Abstract: A circuit assembly includes: a circuit board; an inductor that is disposed on the circuit board, and that includes a coil including a winding portion made by winding a winding wire, and a core member; and a heat dissipation plate that is disposed on the opposite side of the surface of the circuit board on which the inductor is disposed, wherein a through hole is provided in a region of the circuit board that corresponds to the inductor, and a receiving protrusion that penetrates the through hole and protrudes to a surface side of the circuit board on which the inductor is disposed, and that is in heat transfer contact with the coil and the core member is provided in a region that corresponds to the through hole in the heat dissipation plate.

Abstract: A coil device includes a coil unit that includes a coil and a magnetic core, a case that is made of resin and that houses the coil unit, and a bus bar that includes a connection portion that can be connected to a conductive path of a circuit board, and that is held in close contact with the case. The case includes a mounting portion that can be mounted on a face of the circuit board.

Abstract: A circuit assembly includes: a substrate with an electrically conducting path; plate-shaped busbars that have connection portions connected to the electrically conducting path of the substrate, and are arranged in an orientation in which plate surfaces thereof intersects with a surface of the substrate; a heat discharge member that is laid on a side of the substrate opposite to the busbars, and is configured to discharge heat of the substrate; and a resin frame that extends along the busbars, and holds the busbars while being in intimate contact with the busbars, wherein the frame includes mounting portions mounted on at least either the substrate or the heat discharge member.

Abstract: A circuit assembly includes a circuit board on which a coil is mounted, a heat sink, and a heat spreading plate that is separate from this heat sink. A first insulating adhesive layer is interposed between the circuit board and the heat spreading plate, and the heat spreading plate and the heat sink are fixed by a first fixing hole for a heat sink and a bolt. Accordingly, warping of the circuit board is suppressed.

Abstract: A circuit assembly that includes an inductor including a core; a fixation member to which the inductor is fixed; a base that is attached to the core, wherein: the fixation member is made of a first material having a coefficient of thermal expansion larger than a coefficient of thermal expansion of the core, and the base is made of a second material having a coefficient of thermal expansion larger than the coefficient of thermal expansion of the core and smaller than the coefficient of thermal expansion of the fixation member; and an adhesive layer that is disposed between the base and the fixation member, and that bonds the base and the fixation member together.

Abstract: An electrical junction box that includes a circuit board on which a coil element is installed; a partition wall that surrounds the coil element and separates an installation region on the circuit board on which the coil element is installed from a region around the installation region; a frame that is formed in one piece with the partition wall and surrounds the circuit board; a heat dissipation plate on which the circuit board and the frame are placed; and a cover that covers the circuit board from the frame side, wherein the coil element is fixed to the partition wall using a synthetic resin material, and wherein the frame and the heat dissipation plate are positioned relative to each other through a recess-projection engagement, and the cover is fixed to the heat dissipation plate using screws.

Abstract: A circuit assembly where the circuit board includes a first surface and a second surface that is opposite to the first surface and on which a plurality of bus bars are routed, the inductor includes a main body and a terminal that is led out from the main body and has a shape that is bent toward the circuit board, and a leading end of the terminal is connected through a screwing member to a bus bar of the plurality of bus bars exposed from an opening provided on the circuit board, the screwing member is held in an insulating holder housed in a housing recess provided in the heat dissipation plate, and the heat dissipation plate is overlaid so as to transfer heat on the circuit board on the second surface of the circuit board.

Abstract: An electrical junction box that includes a circuit board on which a coil element is installed; a partition wall that surrounds the coil element and separates an installation region on the circuit board on which the coil element is installed from a region around the installation region; a frame that is formed in one piece with the partition wall and surrounds the circuit board; a heat dissipation plate on which the circuit board and the frame are placed; and a cover that covers the circuit board from the frame side, wherein the coil element is fixed to the partition wall using a synthetic resin material, and wherein the frame and the heat dissipation plate are positioned relative to each other through a recess-projection engagement, and the cover is fixed to the heat dissipation plate using screws.

Abstract: A circuit assembly includes a circuit board on which a coil is mounted, a heat sink, and a heat spreading plate that is separate from this heat sink. A first insulating adhesive layer is interposed between the circuit board and the heat spreading plate, and the heat spreading plate and the heat sink are fixed by a first fixing hole for a heat sink and a bolt. Accordingly, warping of the circuit board is suppressed.

Abstract: A foldable lid including a resinous first lid portion, a resinous second lid portion, and a metallic connecting shaft for connecting the first lid portion and the second lid portion, where the lid can be folded by using the connecting shaft as a center. At least one of the first lid portion and the second lid portion is provided with a concave portion configured to be inserted by an end portion in a left-right direction X of the connecting shaft. A bottom of the concave portion is provided with a convex portion protruding towards an end surface portion in the left-right direction X of the end portion. The convex portion contacts a portion, which is closer to the inner side than an outer periphery, of the end surface portion.