US 8,787,019 B2Granted

Electric power converter for rolling stock

AssigneeFuji Electric Co., Ltd.

InventorKiyoshi Takahashi

Life of this patent

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Abstract

An electric power converter can include an electric power converter case mounted on rolling stock, a unit mounting section formed in the electric power converter case and having a cooler insertion opening, and an internal unit mounted on the unit mounting section. The internal unit can include a cooler projecting from the unit mounting section through the cooler insertion opening into an outside air introduction section into which the outside air is introduced and a plurality of securing holders made to butt against the unit mounting section for securing the internal unit. Each of the securing holders can have a butting surface for butting against the unit mounting section to form a step by making the butting surface protrude from the opposed surface of the internal unit facing the unit mounting section.

Claims11

Dependent claims

An electric power converter for rolling stock comprising:

an electric power converter case mounted on rolling stock;
a unit mounting section formed in the electric power converter case, the unit mounting section having an insertion opening;
and
an internal unit mounted on the unit mounting section, the internal unit comprising:
a cooler projecting from the unit mounting section through the insertion opening;
and
a plurality of securing holders being made to butt against the unit mounting section for securing the internal unit,
each of the securing holders having a butting surface for butting against the unit mounting section and forming a step by making the butting surface protrude from the surface of the internal unit facing the unit mounting section, and
a sealing gasket having a thickness larger than the protrusion length of the step being arranged between the unit mounting section and the surface of the internal unit facing the unit mounting section.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/542,789Filed 6 Jul 2012
Priority: JP 2011-15452513 Jul 2011
Published: US 2013/0016481 A117 Jan 2013
Granted: 22 Jul 2014
Term ends: Not estimatedThe source records don’t support an estimate.

Classification11 codes

H05K 7/14325
Specially adapted for power drive units or power converters: for cabinets or racks
H05K 7/20418
Outer radiating structures on heat dissipating housings, e.g. fins integrated with the housing: the radiating structures being additional and…
H05K 7/209
For power electronics, e.g. for inverters for controlling motor: heat transfer by conduction from internal heat source to heat radiating structure
H05K 5/00
Casings, cabinets or drawers for electric apparatus

Family

US 2013/0016481 A1Pre-grant publication · published 17 Jan 2013
US 8,787,019 B2This patent

From the US filing history. Foreign family members aren’t listed.

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