POWER CONVERSION APPARATUS

• US 20130301328A1
• Filed: 04/26/2013
• Published: 11/14/2013
• Est. Priority Date: 05/09/2012
• Status: Abandoned Application

• Current Assignee: Kabushiki Kaisha Yaskawa Denki
• Original Assignee: Kabushiki Kaisha Yaskawa Denki
• Inventors: ITO, Tetsuya
• Application Number:
  US13/870,989
• Publication Number:
  US 20130301328A1
• Time in Patent Office: Days
• US Class Current: 363/141
• 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 2210/40 DC to AC converters
• CPC Class Codes: B60L 2240/36 Temperature of vehicle components or parts
• CPC Class Codes: B60L 2240/525 Temperature of converter or components thereof
• CPC Class Codes: B60L 3/003 relating to inverters
• CPC Class Codes: H01L 2924/00 Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
• CPC Class Codes: H01L 2924/0002 Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
• CPC Class Codes: H02M 7/003 Constructional details, e.g. physical layout, assembly, wiring or busbar connections
• CPC Class Codes: H05K 7/20254 Cold plates transferring heat from heat source to coolant
• CPC Class Codes: H05K 7/2039 characterised by the heat transfer by conduction from the heat generating element to a dissipating body arrangements for increasing/decreasing heat-transfer, e.g. fins details, F28F13/00
• 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 10/72 Electric energy management in electromobility

Abstract

A power conversion apparatus according to an embodiment includes a cooling jacket. The cooling jacket includes a mounting face on which a power module including a power semiconductor device is mounted, a plurality of radiation fins that are arranged along a predetermined direction over the substantially whole area of the back side of the mounting face, and a boss that is placed along the predetermined direction in the central area of the substantially whole area of the back side.

Claims

1. A power conversion apparatus comprising a cooling jacket, the cooling jacket comprising:

a mounting face on which a power module including a power semiconductor device is mounted;

a plurality of radiation fins that are arranged along a predetermined direction over a substantially whole area of a back side of the mounting face; and

a boss that is placed along the predetermined direction in a central area of the substantially whole area of the back side.

2. The power conversion apparatus according to claim 1, wherein

a through-hole is formed in a central portion of a principal surface of the power module, and

a hole into and to which a fastening member inserted into through the through-hole is inserted and fixed is formed in the mounting face of the boss.

3. The power conversion apparatus according to claim 1, wherein

the cooling jacket has, of surfaces facing each other in the predetermined direction among external surfaces of the cooling jacket, a water-supply inlet for a cooling medium in the one surface and a drainage outlet for the cooling medium in the other surface, and

the water-supply inlet and the drainage outlet are arranged at respective alternate positions.

4. The power conversion apparatus according to claim 2, wherein

the cooling jacket has, of surfaces facing each other in the predetermined direction among external surfaces of the cooling jacket, a water-supply inlet for a cooling medium in the one surface and a drainage outlet for the cooling medium in the other surface, and

the water-supply inlet and the drainage outlet are arranged at respective alternate positions.

5. The power conversion apparatus according to claim 1, wherein the boss is provided so that a length of protrusion of the boss is not less than a length of protrusion of the radiation fin.

6. The power conversion apparatus according to claim 2, wherein the boss is provided so that a length of protrusion of the boss is not less than a length of protrusion of the radiation fin.

7. The power conversion apparatus according to claim 3, wherein the boss is provided so that a length of protrusion of the boss is not less than a length of protrusion of the radiation fin.

8. The power conversion apparatus according to claim 4, wherein the boss is provided so that a length of protrusion of the boss is not less than a length of protrusion of the radiation fin.

9. A power conversion apparatus comprising:

a power conversion means for converting DC power into AC power;

a cooling means for cooling the power conversion means; and

a fixing means for fixing the power conversion means to the cooling means, and

the cooling means comprising;

a mounting means for mounting thereon the power conversion means;

a separating means for separating a cooling medium by fixing the fixing means in a central area of a substantially whole area of a back side of the mounting means; and

a heat radiation means for radiating heat of the cooling medium by being arranged like fins along a predetermined direction over the substantially whole area of the back side excluding the central area.