# US 12,191,730 B2 · In-vehicle structure of inverter

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- Number: US 12,191,730 B2
- Document ID: US12191730B2
- Status: Granted
- Kind: B2
- Application number: 17/908,636
- Filed: 2020-03-04
- Published: 2023-05-25
- Granted: 2025-01-07
- Earliest claimed: 2020-03-04
- Assignees: Nissan Motor Co., Ltd.
- Applicants: Nissan Motor Co., Ltd.
- Inventors: Daisuke Asakura; Kazuhiko Matsumoto
- Web page: https://patentgrep.com/patent/US12191730B2

## CPC

- H02K 3/40: for high voltage, e.g. affording protection against corona discharges
- B60K 1/00: Arrangement or mounting of electrical propulsion units (B60K7/00 takes precedence; arrangement or mounting of plural diverse prime-movers for mutual or common propulsion B60K6/00)
- B60K 1/02: comprising more than one electric motor
- B62D 21/152: {Front or rear frames}
- B62D 25/08: Front or rear portions {(sub-frames for mounting engine or suspensions B62D21/11)}
- H02K 3/50: Fastening of winding heads, equalising connectors, or connections thereto
- H02K 11/33: Drive circuits, e.g. power electronics (H02K11/38 takes precedence)
- B60K 6/26: characterised by the motors or the generators
- B60K 2001/001: {one motor mounted on a propulsion axle for rotating right and left wheels of this axle}
- B60Y 2200/92: Hybrid vehicles
- B60Y 2306/01: Reducing damages in case of crash, e.g. by improving battery protection
- H02K 2203/09: Machines characterised by wiring elements other than wires, e.g. bus rings, for connecting the winding terminations
- H02M 7/003: {Constructional details, e.g. physical layout, assembly, wiring or busbar connections}
- H02K: DYNAMO-ELECTRIC MACHINES (dynamo-electric relays H01H53/00; conversion of DC or AC input power into surge output power {H03K3/53})
- B60K: ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B62D: MOTOR VEHICLES; TRAILERS (steering, or guiding on a desired track, of agricultural machines or implements A01B69/00; wheels, castors, axles, increasing wheel adhesion B60B; vehicle tyres, tyre inflation or tyre changing B60C; connections between vehicles of a train or the like B60D; vehicles for use on rail and road, amphibious or convertible vehicles B60F; suspension arrangements B60G; heating, cooling, ventilating or other air treating devices B60H; windows, windscreens, non-fixed roofs, doors or similar devices, protective coverings for vehicles not in use B60J; propulsion plant arrangements, auxiliary drives, transmissions, controls, instrumentation or dashboards B60K; electric equipment or propulsion of electrically-propelled vehicles B60L; power supply for electrically-propelled vehicles B60M; passenger accommodation not otherwise provided for B60N; adaptations for load transportation or to carry special loads or objects B60P; arrangement of signalling or lighting devices, the mounting or supporting thereof or circuits therefor, for vehicles in general B60Q; vehicles, vehicle fittings or vehicle parts not otherwise provided for B60R; servicing, cleaning, repairing, supporting, lifting, or manoeuvring, not otherwise provided for, B60S; brake arrangements, brake control systems or parts thereof B60T; air-cushion vehicles B60V; motor-cycles, accessories therefor B62J, B62K; testing of vehicles G01M)
- B60Y: INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- 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)

## Abstract

The in-vehicle structure of an inverter includes an inverter and a side member. The inverter has a first high-voltage bus bar whose position in the front-rear direction of the vehicle does not overlap with a low rigidity portion and overlaps with a high rigidity portion.

## Claims

### Claim 1

An in-vehicle structure of an inverter, comprising:
an inverter; and
a side member having a low rigidity portion and a high rigidity portion in a front-rear direction of the vehicle, the high rigidity portion being arranged behind the low rigidity portion, wherein
a part of the inverter overlaps with the low rigidity portion in the front-rear direction of the vehicle, and
the inverter has a high-voltage terminal connection portion whose position in the front-rear direction of the vehicle does not overlap with the low rigidity portion and overlaps with the high rigidity portion.

### Claim 2 (depends on 1)

The in-vehicle structure of inverter according to claim 1, further comprising:
a motor, wherein
of a first motor and a second motor, the motor includes at least the first motor;
the first motor is integrated with the inverter; and
the second motor is integrated with the inverter and arranged in front of the first motor in the front-rear direction of the vehicle.

### Claim 3 (depends on 2)

The in-vehicle structure of inverter according to claim 2, wherein
the high-voltage terminal connection portion includes a first high-voltage terminal connection portion connected to the first motor;
the inverter is partially located above the side member; and
the portion of the inverter located above the side member includes the first high-voltage terminal connection portion.

### Claim 4 (depends on 3)

The in-vehicle structure of inverter according to claim 3, wherein
the first high-voltage terminal connection portion is arranged more vehicle-backward than the low rigidity portion.

### Claim 5 (depends on 3)

The in-vehicle structure of inverter according to claim 3, further comprising:
a second high-voltage terminal connection portion connected to the second motor, wherein
the second high-voltage terminal connection portion is arranged on a vehicle-inner side in the inverter.

### Claim 6 (depends on 5)

The in-vehicle structure of inverter according to claim 5, wherein
the second high-voltage terminal connection portion is arranged more vehicle-forward than the high rigidity portion.

### Claim 7 (depends on 6)

The in-vehicle structure of inverter according to claim 6, wherein
the second high-voltage terminal connection portion is arranged at a position overlapping with the low rigidity portion in the front-rear direction of the vehicle.

### Claim 8 (depends on 5)

The in-vehicle structure of inverter according to claim 5, wherein
the second high-voltage terminal connection portion is arranged in the inverter such that a structure is located between the second high-voltage terminal connection portion and a wall portion of a case of the inverter that is a wall portion on a vehicle-outer side in the lateral direction of the vehicle.

### Claim 9 (depends on 2)

The in-vehicle structure of inverter according to claim 2, wherein
the second motor is located below the side member.

### Claim 10 (depends on 2)

The in-vehicle structure of inverter according to claim 2, further comprising:
a high-voltage connector connected to the second motor from a vehicle-inner side.
