# US 2019/0245456 A1 · Intelligent power module, electric vehicle, and hybrid car

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- Number: US 2019/0245456 A1
- Document ID: US20190245456A1
- Status: Published application
- Kind: A1
- Application number: 16/384,274
- Filed: 2019-04-15
- Published: 2019-08-08
- Earliest claimed: 2015-12-03
- Assignees: Rohm Co., Ltd.
- Applicants: Rohm Co., Ltd.
- Inventors: Hideki SAWADA
- Web page: https://patentgrep.com/patent/US20190245456A1

## CPC

- H02M 7/003: {Constructional details, e.g. physical layout, assembly, wiring or busbar connections}
- B60L 50/51: characterised by AC-motors
- H05K 7/209: {Heat transfer by conduction from internal heat source to heat radiating structure (H05K7/20909 takes precedence)}
- H10W 90/00: Package configurations
- H02M 1/327: {against abnormal temperatures}
- H02M 7/5387: in a bridge configuration
- H02P 27/06: using DC to AC converters or inverters (H02P27/05 takes precedence)
- H10W 40/00: Arrangements for thermal protection or thermal control (integrated devices comprising arrangements for thermal protection H10D89/60)
- H10W 40/22: characterised by their shape, e.g. having conical or cylindrical projections
- Y02T 10/70: Energy storage systems for electromobility, e.g. batteries
- H02M: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF (transformers H01F; dynamo-electric converters H02K47/00; controlling transformers, reactors or choke coils, control or regulation of electric motors, generators or dynamo-electric converters H02P)
- B60L: PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES (arrangements or mounting of electrical propulsion units or of plural diverse prime-movers for mutual or common propulsion in vehicles B60K1/00, B60K6/20; arrangements or mounting of electrical gearing in vehicles B60K17/12, B60K17/14; preventing wheel slip by reducing power in rail vehicles B61C15/08; dynamo-electric machines H02K; control or regulation of electric motors H02P); SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES (electric coupling devices combined with mechanical couplings of vehicles B60D1/64; electric heating for vehicles B60H1/00); ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL (control or regulation of electric motors H02P); MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H10W: GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H02P: CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## Abstract

An intelligent power module includes at least one power semiconductor module including a semiconductor device, and a sealing body sealing an outer periphery of the semiconductor device, a driving circuit part mounted on the sealing body and configured to drive the power semiconductor module, and a cooling part on which the sealing body is mounted, and configured to cool the power semiconductor module.

## Claims

### Claim at position 1

1-24. (canceled)

### Claim 25

An intelligent power module, comprising:
a plate part including a first surface and a second surface, which face opposite sides, and configured to perform heat-sinking;
a semiconductor module including a plurality of switching elements disposed on a side of the first surface of the plate part;
a driving circuit including a plurality of drive circuits disposed on the side of the first surface of the plate part and configured to drive the plurality of switching elements; and
an isolation part disposed on the side of the first surface of the plate part and configured to electrically isolate voltage that is input to the plurality of drive circuits.

### Claim 26 (depends on 25)

The intelligent power module of claim 25, wherein the plurality of drive circuits include at least a first drive circuit configured to output a first drive signal and a second drive circuit configured to output a second drive signal.

### Claim 27 (depends on 26)

The intelligent power module of claim 26, wherein the plurality of switching elements include at least a first switching element to which the first drive signal is input and a second switching element to which the second drive signal is input, the first switching element and the second switching element being connected in series between a first power source voltage and a second power source voltage, and
wherein a connection point between the first switching element and the second switching element is an output terminal.

### Claim 28 (depends on 25)

The intelligent power module of claim 25, wherein the semiconductor module is sealed with a resin and interposed between the plate part and the driving circuit.

### Claim 29 (depends on 28)

The intelligent power module of claim 28, wherein a terminal of the semiconductor module extends laterally between the plate part and the driving circuit.

### Claim 30 (depends on 25)

The intelligent power module of claim 25, wherein a diode is inverse-parallel connected to each of the plurality of switching elements.

### Claim 31 (depends on 25)

The intelligent power module of claim 25, wherein the voltage that is input to the plurality of drive circuits is power source voltage for driving the plurality of drive circuits, and
wherein the isolation part includes a transformer.

### Claim 32 (depends on 25)

The intelligent power module of claim 25, wherein the plurality of drive circuits constitute a 3-phase AC inverter.

### Claim 33 (depends on 30)

The intelligent power module of claim 30, wherein the isolation part includes a plurality of isolators disposed for the plurality of drive circuits respectively.

### Claim 34 (depends on 31)

The intelligent power module of claim 31, wherein the isolation part includes a plurality of isolators disposed for the plurality of drive circuits respectively.

### Claim 35 (depends on 25)

The intelligent power module of claim 25, wherein signals output from the plurality of drive circuits are input to the driving circuit via another isolation part.

### Claim 36 (depends on 25)

The intelligent power module of claim 25, further comprising a power source circuit, a short-circuit protection circuit, and a voltage drop detection circuit on an input side of the isolation part.

### Claim 37 (depends on 25)

The intelligent power module of claim 25, wherein the second surface of the plate part is connected to a copper plate.

### Claim 38 (depends on 25)

The intelligent power module of claim 25, the plurality of switching elements include a Si-based MOSFET.

### Claim 39 (depends on 25)

The intelligent power module of claim 25, wherein the plurality of switching elements include a planar gate type SiC MOSFET.

### Claim 40 (depends on 25)

The intelligent power module of claim 25, wherein the plurality of switching elements include a trench gate type SiC MOSFET.

### Claim 41 (depends on 25)

The intelligent power module of claim 25, wherein the plurality of switching elements include a GaN HEMT.

### Claim 42 (depends on 25)

The intelligent power module of claim 25, wherein the plurality of switching elements include an IGBT.
