Electrical power converting device

• US 9,866,127 B2
• Filed: 01/26/2015
• Issued: 01/09/2018
• Est. Priority Date: 03/03/2014
• Status: Active Grant

• Current Assignee: Hitachi Astemo Ltd. (Hitachi, Ltd.)
• Original Assignee: Hitachi Automotive Systems Limited (Hitachi, Ltd.)
• Inventors: Fukumasu, Keisuke, Yamashita, Yoshiharu, Takahashi, Masayoshi
• Primary Examiner(s): Patel, Rajnikant
• Application Number:
  US15/114,117
• Publication Number:
  US 20170005581A1
• Time in Patent Office: 1,079 Days
• Field of Search: 363 17, 363141-146, 363132, 363134, 361703, 361767, 361775, 361831
• CPC Class Codes: B60L 50/51 characterised by AC-motors
• CPC Class Codes: H02M 1/44 Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
• CPC Class Codes: H02M 3/003 Constructional details, e.g. physical layout, assembly, wiring or busbar connections
• CPC Class Codes: H02M 3/28 using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
• CPC Class Codes: H02M 3/33546 with automatic control of the output voltage or current H02M3/33561 takes precedence
• CPC Class Codes: H02M 7/003 Constructional details, e.g. physical layout, assembly, wiring or busbar connections
• CPC Class Codes: H02P 27/06 using dc to ac converters or inverters H02P27/05 takes precedence

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.

Claims

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.