An inductor (100) is provided, and includes an inductor winding (10), a housing (20), and a thermally conductive packaging material (30). The inductor winding is disposed in the housing. The thermally conductive packaging material is potted in the housing to fill a gap between the inductor winding and the housing. The thermally conductive packaging material includes a first packaging layer (31) and a second packaging layer (32), and a coefficient of thermal conductivity of the first packaging layer is greater than a coefficient of thermal conductivity of the second packaging layer. The housing includes a heat dissipation wall (21) and a packaging wall (22), and the first packaging layer is closer to the heat dissipation wall than the second packaging layer. Heat generated by the inductor can be dissipated after being transmitted to each surface of the housing through the thermally conductive packaging material.

Embodiments of this application provide a wireless charger, and relate to the field of charging device technologies. The wireless charger includes a wireless charging module, a first fan, a housing including a contact plate used for contact with the rear surface of the terminal device, and an air intake vent disposed at a position that is of the housing and that is close to the first fan, and an airflow guide structure disposed on a side that is of the housing and that is adjacent to the contact plate. The airflow guide structure extends toward the display surface of the terminal device.

A heat dissipation structure for the reactor includes a housing, a reactor body, and one or more heat dissipation pipes. Each of the one or more heat dissipation pipes is disposed in a cavity of the housing and is connected to the housing in a leak-tight manner, a closed cavity is formed between the one or more heat dissipation pipes and the housing, and the reactor body is disposed in the closed cavity. The above heat dissipation structure for the reactor allows to improve the heat dissipation effect of the reactor under the premise that protection requirements are met. The current carrying density of the coil of the reactor body can be increased and the diameter of copper wires can be reduced under the same conditions, thereby reducing the usage of copper and effectively reducing the cost and weight.

An electromagnetic device is provided with improved thermal management. The electromagnetic device includes a core assembly and one or more sets of windings wrapped around the core assembly. The core assembly is constructed from a plurality of U-shaped cores, or from a plurality of U-shaped cores and I-shaped cores in combination. Various arrangements of thermally conductive plates disposed within the core assembly are provided. The thermally conductive plates transfer heat away from the core assembly to improve the thermal characteristics of the electromagnetic device.

A frequency changer cabinet includes a transformer cabinet to accommodate a transformer, a first air outlet being disposed at a top of the transformer cabinet, and a first air inlet being disposed at a side wall; and a power unit cabinet to accommodate at least one power unit, a second air inlet being disposed at a front side wall, and a rear side of the being connected to the transformer cabinet. In an embodiment, a first air passage baffle and a second air passage baffle are respectively disposed at an upper end and a lower end of a secondary coil, such that air entering from the power unit cabinet to the transformer cabinet can be directly sent to the secondary coil. Further, air entering from the first air inlet can pass through a primary coil and the secondary coil, and then flow out of the transformer cabinet.

The present invention relates to a wireless charging device and a mobile means including same. Specifically, according to an embodiment of the present invention, a wireless charging device comprises: a coil unit, a magnetic unit arranged on the coil unit; and a heat transfer unit arranged in contact with at least a portion of the magnetic unit, thereby efficiently transferring heat generated in the magnetic unit to the outside and further improving heat dissipation and charging efficiency. Therefore, the wireless charging device can be advantageously used in a mobile means such as an electric vehicle requiring a large amount of power transmission between a transmitter and a receiver.

A wireless charging device according to an embodiment, can effectively discharge heat by including an insulating heat dissipation part in the inner part of a magnetic part or between the magnetic part and a coil part. Therefore, the wireless charging device can be effectively used for a transportation means such as an electric vehicle that requires high-capacity power transmission between a transmitter and a receiver.

A heat exchanger package for a dry-type transformer is provided. The heat exchanger package includes a package housing including an air inlet and an air outlet and adapted to fix to the dry-type transformer; and a first heat exchanger located in the package housing and between the air inlet and the air outlet, the first heat exchanger arranged at a first angle of inclination with respect to a first inner surface of the package housing.

The present disclosure relates to a transformer arrangement (1) for mounting in an electrical power unit of a vehicle. The arrangement (1) comprising a transformer core (2) and a thermal shell (3) in contact with said transformer core (2). The transformer core (2) comprises a plurality of winding portions (4) extending from a common centre portion (c1) of said core (2), along a first axis (x1), a second axis (x2) and a third axis, (x3) each axis (x1, x2, x3) being orthogonal relative to each of the other axis (x1, x2, x3). Furthermore, each winding portion (4) comprises a conductive coil arrangement (5) wound around each winding portion (4).

The present embodiment relates to a coil device. The coil device according to the present embodiment includes: first to third coils including a connecting portion; and a coil frame including an upper receiving portion for housing the first coil, a lower receiving portion for housing the second and third coils, and a cable fixing portion for fixing each connecting portion of the first to third coils.