A power conversion device includes: a main body including a substrate to which a power conversion unit and a coil are provided; and a first heat dissipation portion which holds the substrate and dissipates heat of the substrate, wherein the substrate is formed by one sheet, the coil is formed integrally with the substrate, the first heat dissipation portion is fixed to a substrate first surface of the substrate, a heat dissipation second surface of the first heat dissipation portion has a coil cooling portion opposed to and abutting on a part where the coil is formed, of the substrate.

A power conversion device includes: a main body including a substrate to which a power conversion unit and a coil are provided; and a first heat dissipation portion which holds the substrate and dissipates heat of the substrate, wherein the substrate is formed by one sheet, the coil is formed integrally with the substrate, the first heat dissipation portion is fixed to a substrate first surface of the substrate, a heat dissipation second surface of the first heat dissipation portion has a coil cooling portion opposed to and abutting on a part where the coil is formed, of the substrate.

The present invention suggests a power inductor comprising: a body; at least one substrate provided on the inside of the body; at least one coil pattern provided on at least one surface of the substrate; and an insulating layer formed between the coil pattern and the body, wherein at least a part of the substrate is removed and the body is filled in a region where the substrate is removed.

The present invention suggests a power inductor comprising: a body; at least one substrate provided on the inside of the body; at least one coil pattern provided on at least one surface of the substrate; and an insulating layer formed between the coil pattern and the body, wherein at least a part of the substrate is removed and the body is filled in a region where the substrate is removed.

A mobile terminal is provided with a housing, a circuit substrate, a secondary-side non-contact charging module, and a heat dissipating sheet. The circuit substrate comprises a substrate, an electronic component that is mounted to the substrate, and a shield case that covers the electronic component. The heat dissipation sheet is in contact with the shield case.

A vehicle having: a passenger compartment, which is designed to accommodate occupants and is provided with at least one support surface on which to place a mobile phone; and a wireless charger, which is arranged under the support surface and is designed to generate an electromagnetic field in order to charge the mobile phone placed on the support surface. The wireless charger has: at least one coil generating the electromagnetic field, a power supply circuit designed to supply power to the coil, and a heat sink emitting the heat generated by the coil and by the power supply circuit to the outside. There is at least one Peltier cell having a cool wall facing the support surface, and a hot wall facing the heat sink.

Main figure: FIG. 7

A vehicle having: a passenger compartment, which is designed to accommodate occupants and is provided with at least one support surface on which to place a mobile phone; and a wireless charger, which is arranged under the support surface and is designed to generate an electromagnetic field in order to charge the mobile phone placed on the support surface. The wireless charger has: at least one coil generating the electromagnetic field, a power supply circuit designed to supply power to the coil, and a heat sink emitting the heat generated by the coil and by the power supply circuit to the outside. There is at least one Peltier cell having a cool wall facing the support surface, and a hot wall facing the heat sink.

Main figure: FIG. 7

An object of the present invention is to provide a small-sized and highly heat-dissipative reactor and a DC-DC converter using the reactor. A reactor according to the present invention includes a plate bus bar, a core, and a heat sink. The core includes a middle leg portion. The heat sink cools the plate bus bar. The plate bus bar is formed such that a winding axis of a winding including the plate bus bar passes through the middle leg portion. A main surface of the plate bus bar is disposed in parallel with a direction of the winding axis and thermally connected to the heat sink via an insulating layer.

Two through-holes (7a) are formed in a portion of a second cover (7), the portion facing a second core (9) and a secondary coil (5). Heat radiation members (11) are provided in the through-holes (7a). The heat generated by the secondary coil (5) is radiated to the second core (9) via the heat radiation members (11).

In accordance with an exemplary embodiment, a power inductor includes a body, a base disposed in the body, and a coil pattern disposed on at least one surface of the base, in which the body includes metal powder, a polymer, and a thermal conductive filler and the base is formed by bonding a copper foil to both surfaces of a metal plate comprising iron.