Power converter
First Claim
Patent Images
1. A power converter comprising:
- a housing,a coolant path structure installed in said housing for forming a coolant path for letting a coolant pass,a capacitor arranged on one side of said coolant path structure in said housing, having a DC terminal,a power semiconductor circuit arranged on the other side of said coolant path structure in said housing, having a DC terminal, an AC terminal, and a power semiconductor chip for converting a direct current supplied from said DC terminal to an alternating current by an operation of said power semiconductor chip and outputting it from said AC terminal, anda first connecting wire for connecting electrically said DC terminal of said capacitor arranged on one side of said coolant path structure to said DC terminal of said power semiconductor circuit arranged on the other side of said coolant path structure by penetrating a hole formed in said coolant path structure, wherein;
DC power supplied to said housing is supplied to said DC terminal of said capacitor and to said DC terminal of said power semiconductor circuit, and is converted to AC power by said operation of said semiconductor chip, and said AC power is outputted from said AC terminal of said power semiconductor circuit.
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Accused Products
Abstract
First and second bases and composing a coolant path structure are arranged at the middle stage of the power converter, and semiconductor modules and a capacitor are arranged on both surfaces of the coolant path structure. Furthermore, through-holes are formed in the first and second bases, and cables of DC and AC circuits are laid via the through-holes.
54 Citations
21 Claims
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1. A power converter comprising:
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a housing, a coolant path structure installed in said housing for forming a coolant path for letting a coolant pass, a capacitor arranged on one side of said coolant path structure in said housing, having a DC terminal, a power semiconductor circuit arranged on the other side of said coolant path structure in said housing, having a DC terminal, an AC terminal, and a power semiconductor chip for converting a direct current supplied from said DC terminal to an alternating current by an operation of said power semiconductor chip and outputting it from said AC terminal, and a first connecting wire for connecting electrically said DC terminal of said capacitor arranged on one side of said coolant path structure to said DC terminal of said power semiconductor circuit arranged on the other side of said coolant path structure by penetrating a hole formed in said coolant path structure, wherein; DC power supplied to said housing is supplied to said DC terminal of said capacitor and to said DC terminal of said power semiconductor circuit, and is converted to AC power by said operation of said semiconductor chip, and said AC power is outputted from said AC terminal of said power semiconductor circuit. - View Dependent Claims (2, 3, 4)
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5. A power converter comprising:
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a metal housing, a coolant inlet installed in said metal housing, a coolant outlet installed in said metal housing, a coolant path structure for forming a coolant path for leading a coolant flowing in from said coolant inlet to said coolant outlet in said housing, fixed mechanically to said metal housing, a capacitor arranged on one side of said coolant path structure in said housing, having a DC terminal, a power semiconductor circuit arranged on the other side of said coolant path structure in said housing, having a DC terminal, an AC terminal, and a power semiconductor chip for converting a direct current supplied from said DC terminal to an alternating current by an operation of said power semiconductor chip and outputting it from said AC terminal, and a first connecting wire for connecting electrically said DC terminal of said capacitor arranged on one side of said coolant path structure to said DC terminal of said power semiconductor circuit arranged on the other side of said coolant path structure by penetrating a hole formed through said coolant path structure, wherein; said first connecting wire forms a laminating structure holding an insulator therebetween and DC power supplied to said housing is supplied to said DC terminal of said capacitor and to said DC terminal of said power semiconductor circuit, and is converted to AC power by said operation of said semiconductor chip, and said AC power is outputted from said AC terminal of said power semiconductor circuit. - View Dependent Claims (6, 7, 8, 9)
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10. A power converter comprising:
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a housing, a coolant path structure installed in said housing for forming a coolant path for letting a coolant pass, a capacitor arranged on one side of said coolant path structure in said housing, having a DC terminal, a power semiconductor circuit arranged on the other side of said coolant path structure in said housing, having a metal base, a resin case fixed to said metal base, a DC terminal and an AC terminal arranged outside said resin case, a power semiconductor chip fixed to one surface of said metal base via an insulation board in said resin case, and cooling fins fixed to the other surface of said metal base for converting a direct current supplied from said DC terminal to an alternating current by an operation of said power semiconductor chip and outputting it from said AC terminal, and a first connecting wire penetrating said coolant path structure for connecting electrically said DC terminal of said capacitor arranged on one side of said coolant path structure to said DC terminal of said power semiconductor circuit arranged on the other side of said coolant path structure, wherein; said coolant path formed by said coolant path structure has an opening, said cooling fins of said power semiconductor circuit are projected into said coolant path from said opening of said coolant path and said power semiconductor circuit is fixed to said coolant path structure so as to seal said opening of said coolant path by said metal base of said power semiconductor circuit, a hole is formed at a part of said coolant path structure positioned on a side of said opening of said coolant path, said first connecting wire penetrating said coolant path structure connects electrically said DC terminal of said capacitor and said DC terminal of said semiconductor circuit via said hole, and DC power supplied to said housing is supplied to said DC terminal of said capacitor and to said DC terminal of said power semiconductor circuit, and is converted to AC power by said operation of said semiconductor chip and said AC power is outputted from said AC terminal of said power semiconductor circuit. - View Dependent Claims (11, 12)
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13. A power converter comprising:
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a metal housing, a coolant inlet installed in said metal housing, a coolant outlet installed in said metal housing, a coolant path structure for leading a coolant flowing in from said coolant inlet to said coolant outlet in said housing, fixed mechanically to said metal housing for forming a coolant path, a capacitor arranged on one side of said coolant path structure in said housing, having a DC terminal, a power semiconductor circuit arranged on the other side of said coolant path structure in said housing, having a DC terminal, an AC terminal, and a power semiconductor chip for converting a direct current supplied from said DC terminal to an alternating current by an operation of said power semiconductor chip and outputting it from said AC terminal, and a first connecting wire penetrating said coolant path structure for connecting electrically said DC terminal of said capacitor arranged on one side of said coolant path structure to said DC terminal of said power semiconductor circuit arranged on the other side of said coolant path structure, wherein; said coolant path has an opening, said power semiconductor circuit has cooling fins, said power semiconductor circuit is arranged so that said cooling fins are projected internally into said opening of said coolant path, DC power supplied to said housing is supplied to said DC terminal of said capacitor and said DC terminal of said power semiconductor circuit, and said supplied DC power is converted to AC power by said operation of said semiconductor chip, and said AC power is outputted from said AC terminal of said power semiconductor circuit, said power semiconductor circuit has an almost rectangular semiconductor module including externally said DC terminal and said AC terminal and including internally said power semiconductor chip, said semiconductor module is fixed to said coolant path structure so that long sides of said rectangular semiconductor module coincide with a flow direction of a coolant in said coolant path, a hole is formed at a part of said coolant path structure positioned on a side of said opening of said coolant path, and said first connecting wire penetrating said coolant path structure connects electrically said DC terminal of said capacitor and said DC terminal of said semiconductor module via said hole formed in said coolant path structure. - View Dependent Claims (14, 15, 16, 17)
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18. A power converter comprising:
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a metal housing, an engine coolant inlet installed in said metal housing, an engine coolant outlet installed in said metal housing, a coolant path structure for forming a coolant path for leading an engine coolant flowing in from said coolant inlet to said coolant outlet in said housing, fixed mechanically to said metal housing, a capacitor arranged on one side of said coolant path structure in said housing, having a DC terminal, a power semiconductor circuit arranged on the other side of said coolant path structure in said housing, having a DC terminal, an AC terminal, and a power semiconductor chip for converting a direct current supplied from said DC terminal to an alternating current by an operation of said power semiconductor chip and outputting it from said AC terminal, and a first connecting wire penetrating said coolant path structure for connecting electrically said DC terminal of said capacitor arranged on one side of said coolant path structure to said DC terminal of said power semiconductor circuit arranged on the other side of said coolant path structure, wherein; said coolant path has an opening, said power semiconductor circuit has cooling fins, said power semiconductor circuit is arranged so that said cooling fins are projected internally into said opening of said coolant path, DC power supplied to said housing is supplied to said DC terminal of said capacitor and said DC terminal of said power semiconductor circuit, and said supplied DC power is converted to AC power by said operation of said semiconductor chip, and said AC power is outputted from said AC terminal of said power semiconductor circuit, said power semiconductor circuit has an almost rectangular semiconductor module including externally said DC terminal and said AC terminal and including internally said power semiconductor chip, said semiconductor module is fixed to said coolant path structure so that long sides of said rectangular semiconductor module coincide with a flow direction of an engine coolant flowing in said coolant path, a first hole is formed at a part of said coolant path structure positioned on a side of said opening of said coolant path, and said first connecting wire penetrating said coolant path structure connects electrically said DC terminal of said capacitor and said DC terminal of said semiconductor module via said first hole formed in said coolant path structure. - View Dependent Claims (19, 20, 21)
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Specification