Electrical power converting device

Patent metadata

Field	Value
Publication number	US-9866127-B2
Application number	US-201515114117-A
Country	US
Kind code	B2
Filing date	Jan 26, 2015
Priority date	Mar 3, 2014
Publication date	Jan 9, 2018
Grant date	Jan 9, 2018

Abstract

An electrical power converting device includes: a converter circuit part that includes a switching circuit and a transformer and converts a voltage between a voltage on a high voltage power source side and a voltage on a low voltage power source side in an unidirectional or bidirectional manner; a filter circuit part that is connected to a low-voltage side of the converter circuit part and includes an inductor and a capacitor; a control circuit board on which a control part is mounted, the control part controlling the switching circuit; and a metal housing in which an interior space of the housing is divided into a first accommodation space and a second accommodation space by a partition wall including a cooling liquid flow path, wherein the converter circuit part is arranged in the first accommodation space, and the filter circuit and the control circuit board are arranged in the second accommodation space.

First claim

The invention claimed is:

1. An electrical power converting device, comprising:
a converter circuit part that includes a switching circuit and a transformer and converts a voltage between a voltage on a high voltage power source side and a voltage on a low voltage power source side in an unidirectional or bidirectional manner;
a filter circuit part that is connected to a low-voltage side of the converter circuit part and includes an inductor and a capacitor;
a control circuit board on which a control part is mounted, the control part controlling the switching circuit; and
a metal housing in which an interior space of the housing is divided into a first accommodation space and a second accommodation space by a partition wall including a cooling liquid flow path, wherein
the converter circuit part is arranged in the first accommodation space, and the filter circuit and the control circuit board are arranged in the second accommodation space,
the partition wall includes an outflow/inflow port through which an electrical power wiring passes, the electrical power wiring connecting the converter circuit part and the filter circuit part; and
the inductor is arranged in a vicinity of the outflow/inflow port.

2. The electrical power converting device according to claim 1 , wherein:
a recess is formed in a wall surface of the partition wall facing the second accommodation space, and the outflow/inflow port is provided in the recess; and
the inductor is accommodated in the recess.

3. The electrical power converting device according to claim 1 , wherein:
the control circuit board is fastened on the partition wall, and a ground of the control circuit board is electrically connected to the partition wall.

4. The electrical power converting device according to claim 2 , wherein:
the control circuit board is fastened on the partition wall, and a ground of the control circuit board is electrically connected to the partition wall.

Assignees

• Hitachi Automotive Systems Ltd

Inventors

• Fukumasu Keisuke
• Yamashita Yoshiharu
• Takahashi Masayoshi

Classifications

• H02M7/003

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

• H02M1/44

  Circuits or arrangements for compensating for electromagnetic interference in converters or inverters · CPC title

• H02M3/28 Primary

  using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC · CPC title

• H02M3/33546 Primary

  with automatic control of the output voltage or current (H02M3/33561 takes precedence) · CPC title

• H02P27/06

  using DC to AC converters or inverters (H02P27/05 takes precedence) · CPC title