POWER CONVERTER
First Claim
1. A power converter for a vehicle, wherein a series circuit of a positive-side semiconductor switching arm and a negative-side semiconductor switching arm which are formed of switching semiconductor elements is connected between a positive potential side and a negative potential side of a DC voltage supply;
- an output terminal is led out from a series joint of the two sets of semiconductor switching arms;
an anode of the positive-side semiconductor switching arm is connected to the positive potential side of the DC voltage supply, while a cathode of the negative-side semiconductor switching arm is connected to the negative potential side of the DC voltage supply;
the series circuit of the two sets of semiconductor switching arms is used as one phase component of the power converter;
all the switching semiconductor elements which form the semiconductor switching arms are arranged on the same plane of a cooler; and
a cooling section of the cooler is configured of a plurality of fins so that the switching semiconductor elements may be cooled by a refrigerant which flows between the fins;
characterized in that the switching semiconductor elements are disposed on the same plane of the cooler so that longitudinal directions of the semiconductor switching arms may become perpendicular to a flowing direction of the refrigerant.
1 Assignment
0 Petitions
Accused Products
Abstract
In a power converter for a vehicle where a series circuit of switching semiconductor elements (1, 2) is connected between the positive and negative terminals of a DC power supply, an AC output terminal is led out from the series joint of the series circuit, all switching semiconductor elements are arranged on the same plane of a cooler (11) with the series circuit used as one phase of the power converter, the cooling section of the cooler is constituted of a plurality of fins, and the switching semiconductor elements are cooled by refrigerant flowing between fins, the switching semiconductor elements are arranged on the cooler such that the longitudinal direction thereof become perpendicular to the flowing direction of refrigerant. A small power converter having a high cooling efficiency can be obtained at a low cost.
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Citations
6 Claims
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1. A power converter for a vehicle, wherein a series circuit of a positive-side semiconductor switching arm and a negative-side semiconductor switching arm which are formed of switching semiconductor elements is connected between a positive potential side and a negative potential side of a DC voltage supply;
- an output terminal is led out from a series joint of the two sets of semiconductor switching arms;
an anode of the positive-side semiconductor switching arm is connected to the positive potential side of the DC voltage supply, while a cathode of the negative-side semiconductor switching arm is connected to the negative potential side of the DC voltage supply;
the series circuit of the two sets of semiconductor switching arms is used as one phase component of the power converter;
all the switching semiconductor elements which form the semiconductor switching arms are arranged on the same plane of a cooler; and
a cooling section of the cooler is configured of a plurality of fins so that the switching semiconductor elements may be cooled by a refrigerant which flows between the fins;
characterized in that the switching semiconductor elements are disposed on the same plane of the cooler so that longitudinal directions of the semiconductor switching arms may become perpendicular to a flowing direction of the refrigerant. - View Dependent Claims (4)
- an output terminal is led out from a series joint of the two sets of semiconductor switching arms;
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2. A power converter for a vehicle, wherein a series circuit of a positive-side semiconductor switching arm which is formed of a switching semiconductor element, and a negative-side semiconductor rectification arm which is formed of a rectifying semiconductor element is connected between a positive potential side and a negative potential side of a DC voltage supply;
- an output terminal is led out from a series joint of the semiconductor switching arm and the semiconductor rectification arm;
an anode of the semiconductor switching arm is connected to the positive potential side of the DC voltage supply, while an anode of the semiconductor rectification arm is connected to the negative potential side of the DC voltage supply;
the series circuit is used as one phase component of the power converter;
all the semiconductor elements which form the semiconductor switching arm and the semiconductor rectification arm are arranged on the same plane of a cooler; and
a cooling section of the cooler is configured of a plurality of fins so that the semiconductor elements may be cooled by a refrigerant which flows between the fins;
characterized in that the semiconductor elements are disposed on the same plane of the cooler so that longitudinal directions of the semiconductor switching arm and the semiconductor rectification arm may become perpendicular to a flowing direction of the refrigerant. - View Dependent Claims (5)
- an output terminal is led out from a series joint of the semiconductor switching arm and the semiconductor rectification arm;
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3. A power converter for a vehicle, wherein a series circuit of a positive-side semiconductor rectification arm which is formed of a rectifying semiconductor element, and a negative-side semiconductor switching arm which is formed of a switching semiconductor element is connected between a positive potential side and a negative potential side of a DC voltage supply;
- an output terminal is led out from a series joint of the semiconductor rectification arm and the semiconductor switching arm;
a cathode of the semiconductor rectification arm is connected to the positive potential side of the DC voltage supply, while a cathode of the semiconductor switching arm is connected to the negative potential side of the DC voltage supply;
the series circuit is used as one phase component of the power converter;
all the semiconductor elements which form the semiconductor rectification arm and the semiconductor switching arm are arranged on the same plane of a cooler; and
a cooling section of the cooler is configured of a plurality of fins so that the semiconductor elements may be cooled by a refrigerant which flows between the fins;
characterized in that the semiconductor elements are disposed on the same plane of the cooler so that longitudinal directions of the semiconductor rectification arm and the semiconductor switching arm may become perpendicular to a flowing direction of the refrigerant. - View Dependent Claims (6)
- an output terminal is led out from a series joint of the semiconductor rectification arm and the semiconductor switching arm;
Specification