Power converter
AssigneeToyota Jidosha Kabushiki Kaisha
InventorHirotaka Ohno
Life of this patent
Estimating the term…
Abstract
In a power converter, a plurality of semiconductor devices and a plurality of cooling plates are stacked. The plurality of semiconductor devices includes a first-first sealed semiconductor device, a second-first sealed semiconductor device, and a plurality of second sealed semiconductor devices. The first-first sealed semiconductor device has a first high potential side terminal, and a first low potential side terminal. The second-first sealed semiconductor device has a second high potential side terminal, and a second low potential side terminal. When viewed along a stacking direction, the first high potential side terminal is disposed to overlap with the second low potential side terminal.
Claims10
A power converter comprising:
- a plurality of semiconductor devices;
- and
- a plurality of cooling plates,
- wherein
- the plurality of semiconductor devices are stacked alternately with the plurality of cooling plates, each of the semiconductor devices being in close contact with the corresponding adjacent cooling plate,
- the plurality of semiconductor devices includes a first-first sealed semiconductor device, a second-first sealed semiconductor device, and a second sealed semiconductor device,
- each of the first-first sealed semiconductor device and the second-first sealed semiconductor device comprises a first semiconductor structure which is sealed with first resin, and the first semiconductor structure includes a first transistor and a first diode connected in parallel with the first transistor,
- the first-first sealed semiconductor device includes:
- a first high potential side terminal connected to a cathode of the first diode of the first-first sealed semiconductor device, a first portion of the first high potential side terminal being outside of the first resin;
- and
- a first low potential side terminal connected to an anode of the first diode of the first-first sealed semiconductor device, a second portion of the first low potential side terminal being outside of the first resin,
- the second-first sealed semiconductor device includes:
- a second high potential side terminal connected to a cathode of the first diode of the second-first sealed semiconductor device, a third portion of the second high potential side terminal being outside of the first resin;
- and
- a second low potential side terminal connected to an anode of the first diode of the second-first sealed semiconductor device, a fourth portion of the second low potential side terminal being outside of the first resin,
- the second sealed semiconductor device comprises a plurality of second semiconductor structures,
- each of the second semiconductor structures is sealed with second resin and includes a second transistor and a second diode connected in parallel with the second transistor,
- at least two of the second transistors included in the plurality of second semiconductor structures are connected in series,
- the first low potential side terminal of the first-first sealed semiconductor device is connected with the second high potential side terminal of the second-first sealed semiconductor device, and
- when viewed along a stacking direction of the plurality of semiconductor devices and the plurality of cooling plates, the first portion of the first high potential side terminal of the first-first sealed semiconductor device that is outside of the first resin is disposed to overlap with the fourth portion of the second low potential side terminal of the second-first sealed semiconductor device that is outside of the first resin.
Dependencies are inferred from the claim text.