Power Conversion Device

• US 20120008286A1
• Filed: 01/25/2010
• Published: 01/12/2012
• Est. Priority Date: 02/06/2009
• Status: Abandoned Application

• Current Assignee: Hitachi Automotive Systems Limited (Hitachi, Ltd.)
• Original Assignee: Hitachi Automotive Systems Limited (Hitachi, Ltd.)
• Inventors: Suzuki, Hideyo
• Application Number:
  US13/147,229
• Publication Number:
  US 20120008286A1
• Time in Patent Office: Days
• US Class Current: 361/730
• CPC Class Codes: B60L 15/007 Physical arrangements or structures of drive train converters specially adapted for the propulsion motors of electric vehicles
• CPC Class Codes: B60L 2200/26 Rail vehicles
• CPC Class Codes: B60L 50/16 with provision for separate direct mechanical propulsion
• CPC Class Codes: H02M 7/003 Constructional details, e.g. physical layout, assembly, wiring or busbar connections
• CPC Class Codes: H05K 7/1432 specially adapted for power drive units or power converters
• CPC Class Codes: H05K 7/14322 wherein the control and power circuits of a power converter are arranged within the same casing
• CPC Class Codes: H05K 7/14329 specially adapted for the configuration of power bus bars
• CPC Class Codes: H05K 7/20927 Liquid coolant without phase change
• CPC Class Codes: Y02T 10/64 Electric machine technologies in electromobility
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/7072 Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors

Abstract

A power conversion device according to the present invention includes: a power module (300) that converts DC power into AC power and supplies the AC power to a motor; an electronic circuit board (22), placed above the power module (300), that drives the power module (300); and a housing (12) that includes a power module mounting surface on which the power module (300) is mounted, and houses the power module (300) and the electronic circuit board (12), wherein: the power module (300) includes a first protruding section (350) that is formed to protrude towards the electronic circuit board (22), and is engaged with a recess or a hole (352) formed on the electronic circuit board (22); and a second protruding section (351) that is formed to protrude towards the housing (12), and is engaged with a recess or a hole (354) formed on the housing (12), wherein: the first protruding section (350) and the second protruding section (351) are aligned in a substantially vertical direction of the power module mounting surface of the housing (12).

Claims

1. A power conversion device, comprising:

a power module that converts DC power into AC power and supplies the AC power to a motor;

an electronic circuit board, placed above the power module, that drives the power module; and

a housing that includes a power module mounting surface on which the power module is mounted, and houses the power module and the electronic circuit board, wherein;

the power module includes;

a first protruding section that is formed to protrude towards the electronic circuit board, and is engaged with a recess or a hole formed on the electronic circuit board; and

a second protruding section which is formed to protrude towards the housing, and is engaged with a recess or a hole formed on the housing, wherein;

the first protruding section and the second protruding section are aligned in a substantially vertical direction of the power module mounting surface of the housing.

2. A power conversion device according to claim 1, wherein:

a plurality of the power modules are provided, and the plurality of power modules are adjacently placed; and

the electronic circuit board includes a plurality of electronic circuit sections for driving each of the plurality of power modules, with the plurality of electronic circuit sections being mounted on a single board.

3. A power conversion device according to claim 1, wherein:

the first protruding section and the second protruding section are integrally formed.

4. A power conversion device according to claim 1, wherein:

the first protruding section is made of resin.

5. A power conversion device according to claim 1, wherein:

the power module includes a case that surrounds a built-in switching device; and

the first protruding section and the second protruding section are integrally formed with the case.

6. A power conversion device according to claim 5, wherein:

the case, the first protruding section, and the second protruding section are made of resin.

7. A power conversion device according to claim 1, wherein:

the power module includes a gate terminal to be electrically connected with a built-in switching device; and

the first protruding section is provided on a side different from a side on which the gate terminal of the power module is provided.