Reactor and power converter incorporating the reactor
AssigneesDenso Corporation, NEC Tokin Corporation
InventorsKenji Saka, Kazuhiro Kosaka, Akira Nakasaka
Life of this patent
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Abstract
A reactor is provided with a coil, a core, and a case. The coil generates magnetic flux in response to supply of current thereto. The core is made of magnetic powder-containing resin filled in spaces inside and outside of the core. The case accommodates therein the coil and the core. The reactor is also provided with a cooling pipe (cooling member), which is arranged to be in contact with the core. A power converter is provided with semiconductor modules, a cooler, and the reactor. In the power converter, the cooler is arranged partially being in contact with the core of the reactor.
Claims21
A reactor comprising:
- a case;
- a loop shaped coil formed to have windings wound in a loop shape such that the wound windings provide an inside space surrounded by the wound windings, and accommodated in the case such that an outside space is present between the loop shaped coil and the case, wherein the loop shaped coil generates magnetic flux in response to a supply of current thereto, such that the generated magnetic flux circulates through the inside and outside spaces
- a core made of magnetic powder-containing resin filled in the inside and outside spaces;
- and
- a cooling member arranged to be entirely embedded in the core in the inside space such that the cooling member is in contact with the core in the inside space,
- wherein the cooling member is formed as a projection inwardly projecting from the case in an axial direction of the windings of the coil.
Dependencies are inferred from the claim text.