# US 11,027,782 B2 · Vehicle front-part structure

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- Number: US 11,027,782 B2
- Document ID: US11027782B2
- Status: Granted
- Kind: B2
- Application number: 16/458,577
- Filed: 2019-07-01
- Published: 2020-01-09
- Granted: 2021-06-08
- Earliest claimed: 2018-07-03
- Assignees: Toyota Jidosha Kabushiki Kaisha
- Applicants: Toyota Jidosha Kabushiki Kaisha
- Inventors: Yusuke Fujii; Yoshihito Tomizawa
- Web page: https://patentgrep.com/patent/US11027782B2

## CPC

- B62D 21/11: with resilient means for suspension {, e.g. of wheels or engine; sub-frames for mounting engine or suspensions}
- B62D 25/2018: {the subunits being front structures}
- B60K 1/04: of the electric storage means for propulsion
- B60L 50/64: Constructional details of batteries specially adapted for electric vehicles
- B60L 50/66: {Arrangements of batteries}
- B62D 21/02: comprising longitudinally or transversely arranged frame members
- B62D 21/155: {Sub-frames or underguards}
- B62D 25/08: Front or rear portions {(sub-frames for mounting engine or suspensions B62D21/11)}
- B60K 2001/0438: {Arrangement under the floor}
- B60L 53/22: Constructional details or arrangements of charging converters specially adapted for charging electric vehicles
- B60L 2210/10: DC to DC converters
- B60L 2210/30: AC to DC converters
- B60Y 2306/01: Reducing damages in case of crash, e.g. by improving battery protection
- Y02E 60/10: Energy storage using batteries
- Y02T 10/70: Energy storage systems for electromobility, e.g. batteries
- Y02T 10/7072: Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
- Y02T 90/14: Plug-in electric 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)
- 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
- 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
- B60Y: INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## Abstract

A battery unit is positioned under the floor of a vehicle chamber. A battery-side extension is provided on the lower surface of the front part of the battery unit case. A member-side extension member is provided, on the rear part of a suspension member, at a position facing the battery-side extension in the vehicle front-and-rear direction.

## Claims

### Claim 1

A vehicle front-part structure comprising:
a battery unit provided under a floor of a vehicle chamber; and
a suspension member provided in front of the battery unit, wherein
a floor-side extension member having a front end inclined surface is provided on a lower surface of the floor and in front of the battery unit, such that a lower side of the front end inclined surface is located on the rear side,
a battery-side extension member having a front end inclined surface is provided on a front part of the battery unit which is on a lower rear side of the floor-side extension member, such that the lower side of the front end inclined surface is located on a rear side, and
a member-side extension member having a rear end inclined surface is provided, on a rear end edge of the suspension member, at a position facing the floor-side extension member in a vehicle front-and-rear direction, such that a lower side of the rear end inclined surface is located on a rear side.

### Claim 2 (depends on 1)

The vehicle front-part structure according to claim 1, wherein a lower end of the floor-side extension member is located lower than an upper end of the battery-side extension member.

### Claim 3 (depends on 1)

The vehicle front-part structure according to claim 1, wherein an inclination of the rear end inclined surface of the member-side extension member is more horizontal than an inclination of the front end inclined surface of the floor-side extension member.

### Claim 4 (depends on 1)

The vehicle front-part structure according to claim 1, wherein
the battery unit includes a battery assembly including a plurality of batteries, and a case for containing the battery assembly, and
the battery-side extension member is provided on a lower surface of a front part of the case, and in the case, a portion adjacent to the battery-side extension member is hollow.

### Claim 5

A vehicle front-part structure comprising:
a battery unit provided under a floor of a vehicle chamber; and
a suspension member provided in front of the battery unit, wherein
a battery-side extension member having a front end inclined surface is provided on a front part of the battery unit such that a lower side of the front end inclined surface is located on a rear side, and
a member-side extension member having a rear end inclined surface is provided on a rear part of the suspension member which is in front of the battery-side extension member, such that a lower side of the rear end inclined surface is located on a rear side,
wherein the battery unit includes a battery assembly including a plurality of batteries and a case for containing the battery assembly, and
wherein the battery-side extension member is provided on a lower surface of a front part of the case, and in the case, a portion adjacent to the battery-side extension member is hollow.