Power converter

Patent metadata

Field	Value
Publication number	US-10069433-B2
Application number	US-201615062533-A
Country	US
Kind code	B2
Filing date	Mar 7, 2016
Priority date	Mar 6, 2015
Publication date	Sep 4, 2018
Grant date	Sep 4, 2018

Abstract

A power converter is provided which includes at least a first and a second magnetic device equipped with coils and an electrical circuit equipped with a conductor disposed on an imaginary plane, defined between the first and second magnetic devices. Magnetic fluxes are emitted from the coils of the first and second magnetic devices, vectors of components which are oriented in directions of axes of turns of conductors of the coils are defined as a first and a second vector, and the first and second magnetic devices are disposed so that an inner product of vectors derived by projecting the first and second vectors on the imaginary plane will be positive. This minimizes electrical noise generated in the electrical circuit.

First claim

What is claimed is:

1. A power converter comprising:
a first and a second magnetic device each of which is equipped with a coil; and
an electrical circuit which includes a conductor located on an imaginary plane, as defined between the first and second magnetic devices,
wherein magnetic fluxes are emitted from the coils of the first and second magnetic devices, vectors of components of the magnetic fluxes, the vectors of the components being oriented substantially in directions of axes of turns of conductors of the coils, are defined as a first and a second vector, and the first and second magnetic devices are disposed so that an inner product of vectors derived by projecting the first and second vectors on the imaginary plane is positive.

2. A power converter as set forth in claim 1 , wherein the first and second magnetic devices are arranged to have the first and second vectors extending parallel to the imaginary plane.

3. A power converter as set forth in claim 1 , wherein the coils of the first and second magnetic devices are made of a single conductor.

4. A power converter as set forth in claim 1 , wherein the conductor of the electrical circuit is implemented by a bus bar.

5. A power converter as set forth in claim 1 , wherein the electrical circuit is formed on a printed circuit board, and the conductor of the electrical circuit is made of a wiring pattern printed on the printed circuit board.

6. A power converter as set forth in claim 1 , wherein the first and second magnetic devices are of the same type.

7. A power converter as set forth in claim 1 , wherein when viewed in a direction normal to the imaginary plane, the first and second magnetic devices are laid to at least partially overlap each other.

8. A power converter as set forth in claim 7 , wherein the first and second magnetic device are arranged to be symmetric with respect to the imaginary plane.

Assignees

• Denso Corp

Inventors

• Masuzawa Takashi
• Taki Hiroshi

Classifications

• H01F27/346

  Preventing or reducing leakage fields (using magnetic shields H01F27/36; using auxiliary windings H01F27/38) · CPC title

• H01F2027/348

  Preventing eddy currents · CPC title

• H02M7/003 Primary

  Constructional details, e.g. physical layout, assembly, wiring or busbar connections · CPC title