# US 9,038,757 B2 · Vehicle battery mounting structure

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- Number: US 9,038,757 B2
- Document ID: US9038757B2
- Status: Granted
- Kind: B2
- Application number: 14/361,039
- Filed: 2012-11-12
- Published: 2014-11-06
- Granted: 2015-05-26
- Earliest claimed: 2011-11-29
- Assignees: Toyota Jidosha Kabushiki Kaisha
- Applicants: Hisaya Ogushi; Yoshihito Terao
- Inventors: Hisaya Ogushi; Yoshihito Terao
- Web page: https://patentgrep.com/patent/US9038757B2

## CPC

- B60K 1/04: of the electric storage means for propulsion
- B60L 50/64: Constructional details of batteries specially adapted for electric vehicles
- H01M 50/244: Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
- H01M 50/249: specially adapted for aircraft or vehicles, e.g. cars or trains (constructional details of batteries specially adapted for electric vehicles B60L50/64)
- B60K 2001/0422: {Arrangement under the front seats}
- B60K 2001/0438: {Arrangement under the floor}
- B60R 16/04: Arrangement of batteries
- H01M 2220/20: Batteries in motive systems, e.g. vehicle, ship, plane
- 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
- 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
- H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## Abstract

A vehicle battery mounting structure having a service hole cover that closes a service hole the service hole cover includes a rear cover that covers a rear end side of the service hole in a vehicle longitudinal direction and a front cover that covers a front end side of the service hole in the vehicle longitudinal direction. That is, the service hole cover is split into the rear cover and the front cover in the vehicle longitudinal direction. The front cover is detachably attached to a floor upper reinforcement provided on a floor panel by bolts.

## Claims

### Claim 1

A vehicle battery mounting structure comprising:
a vehicle floor that supports a vehicle seat such that the vehicle seat is slidable in a vehicle longitudinal direction and in which a service hole is formed at a portion over which a seat cushion of the vehicle seat is located when the vehicle seat is located at a center in a sliding direction;
a battery unit that is arranged below the vehicle floor in a vehicle vertical direction and that has an operating portion protruding toward the service hole; and
a service hole cover that closes the service hole, and that includes a first cover that is provided on an upper face of the vehicle floor and that covers one end side of the service hole in the vehicle longitudinal direction and a second cover that is detachably attached to the upper face of the vehicle floor and that covers the other end side of the service hole in the vehicle longitudinal direction.

### Claim 2 (depends on 1)

The vehicle battery mounting structure according to claim 1, wherein
the service hole cover includes an insertion portion that is provided at one of the first cover and the second cover and a connecting portion that is provided at the other one of the first cover and the second cover, that is inserted in the insertion portion removably in the vehicle longitudinal direction and that connects the first cover to the second cover.

### Claim 3 (depends on 2)

The vehicle battery mounting structure according to claim 2, wherein
the insertion portion has an insertion port to which the connecting portion is inserted, and
the one of the first cover and the second cover, having the insertion portion, has a guide portion that guides the connecting portion to the insertion port.

### Claim 4 (depends on 1)

The vehicle battery mounting structure according to claim 1, wherein
the operating portion is arranged above the vehicle floor through the service hole in a vehicle vertical direction.

### Claim 5 (depends on 1)

The vehicle battery mounting structure according to claim 1, wherein
the battery unit includes a battery module that stores electric power and a battery case that accommodates the battery module and in which the operating portion is provided at a top wall portion of the battery case, and
a seal member that closes a gap between the vehicle floor and the top wall portion of the battery case is provided in the gap so as to surround the service hole.

### Claim 6 (depends on 5)

The vehicle battery mounting structure according to claim 5, wherein
the battery unit is arranged below the vehicle floor in the vehicle vertical direction, the operating portion is arranged above the vehicle floor in the vehicle vertical direction through the service hole, and the seal member is arranged below the service hole in the vehicle vertical direction.

### Claim 7 (depends on 5)

The vehicle battery mounting structure according to claim 5, wherein
the top wall portion of the battery case has a base portion that protrudes above the vehicle floor in the vehicle vertical direction with respect to the vehicle floor through the service hole and that supports the operating portion, and
the seal member is arranged radially outward of the base portion so as to be spaced apart from the base portion.

### Claim 8 (depends on 5)

The vehicle battery mounting structure according to claim 5, wherein
the seal member extends from the top wall portion of the battery case toward the vehicle floor and is curved such that a distal end portion of the seal member in a direction in which the seal member extends is oriented toward a side opposite to the service hole.
