# US 10,118,459 B2 · Battery cooling structure for vehicle > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,118,459 B2 - Document ID: US10118459B2 - Status: Granted - Kind: B2 - Application number: 15/545,759 - Filed: 2015-12-10 - Published: 2018-01-18 - Granted: 2018-11-06 - Earliest claimed: 2015-02-05 - Assignees: Honda Motor Co., Ltd. - Applicants: Honda Motor Co., Ltd. - Inventors: Tomofumi Yasuda; Atsushi Mizutani - Web page: https://patentgrep.com/patent/US10118459B2 ## CPC - B60H 1/00278: {for the battery} - B60H 1/00385: {for vehicles having an electrical drive, e.g. hybrid or fuel cell} - B60K 1/04: of the electric storage means for propulsion - B60L 50/64: Constructional details of batteries specially adapted for electric vehicles - B60L 58/26: by cooling - H01M 10/613: Cooling or keeping cold - H01M 10/615: Heating or keeping warm - H01M 10/625: Vehicles - H01M 10/647: Prismatic or flat cells, e.g. pouch cells - H01M 10/6561: Gases - H01M 10/6563: with forced flow, e.g. by blowers - B60H 2001/003: {Component temperature regulation using an air flow} - B60K 11/06: with air cooling - B60K 2001/003: {with means for cooling the electrical propulsion units} - B60K 2001/005: {the electric storage means} - B60K 2001/0416: {Arrangement in the rear part of the vehicle} - B60K 2001/0438: {Arrangement under the floor} - 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 - B60H: ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF 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 - 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 cooling structure for a vehicle includes: a battery storage space that is defined underneath a luggage compartment provided behind a rear seat and covered by a rear floor; a battery module that is stored in the battery storage space; a battery cooling unit that cools the battery module using air taken in from a passenger compartment, and discharges air into the battery storage space; a partition member that separates the battery storage space and a rear seat underside space that is provided underneath the rear seat; a passenger compartment-bound exhaust air flow path that returns an exhaust air discharged into the battery storage space to the passenger compartment by way of the rear seat underside space and an exhaust air passage hole formed in the partition member; and a luggage compartment-bound exhaust air flow path that discharges the exhaust air into the luggage compartment. ## Claims ### Claim 1 A battery cooling structure for a vehicle comprising: a battery storage space that is defined underneath a luggage compartment provided behind a rear seat and covered by a rear floor; a battery module that is stored in the battery storage space; and a battery cooling unit that cools the battery module using air taken in from a passenger compartment, and discharges air used to cool the battery module into the battery storage space, wherein the battery cooling structure further comprises: a partition member that separates the battery storage space and a rear seat underside space that is provided underneath the rear seat; a passenger compartment-bound exhaust air flow path that returns an exhaust air discharged into the battery storage space to the passenger compartment by way of the rear seat underside space and an exhaust air passage hole formed in the partition member; and a luggage compartment-bound exhaust air flow path that includes a space defined between a body of the vehicle and a side trim and that discharges the exhaust air into the luggage compartment. ### Claim 2 (depends on 1) The battery cooling structure for a vehicle according to claim 1, wherein the battery cooling structure further includes an outlet port that is provided below a front end portion of the rear seat, and wherein the outlet port communicates with the exhaust air passage hole by way of the rear seat underside space. ### Claim 3 (depends on 2) The battery cooling structure for a vehicle according to claim 2, wherein the battery cooling structure further includes an inlet port that introduces air to cool the battery module from the passenger compartment, wherein the inlet port is disposed at one transverse end portion below the front end portion of the rear seat, and wherein the outlet port is disposed at an other transverse end portion below the front end portion of the rear seat. ### Claim 4 (depends on 3) The battery cooling structure for a vehicle according to claim 3, wherein the outlet port and the inlet port open obliquely forwards and outwards to thereby be directed to corresponding adjacent doors. ### Claim 5 (depends on 1) The battery cooling structure for a vehicle according to claim 1, wherein the battery cooling structure further includes an outlet port that is provided below a front end portion of the rear seat, and wherein the outlet port communicates with the exhaust air passage hole by way of an outlet duct that is provided in the rear seat underside space. ### Claim 6 (depends on 1) The battery cooling structure for a vehicle according to claim 1, wherein the side trim includes an opening communicating the space with the luggage compartment to discharge the exhaust air through the opening into the luggage compartment. ### Claim 7 A battery cooling structure for a vehicle comprising: a battery storage space that is defined underneath a luggage compartment provided behind a rear seat and covered by a rear floor; a battery module that is stored in the battery storage space; and a battery cooling unit that cools the battery module using air that is taken in from a passenger compartment and discharges air used to cool the battery module into the battery storage space, wherein the battery cooling structure further comprises: a passenger compartment-bound exhaust air flow path that returns an exhaust air discharged into the battery storage space to the passenger compartment; and a luggage compartment-bound exhaust air flow path that includes a space defined between a body of the vehicle and a side trim and that discharges the exhaust air into the luggage compartment, wherein an inlet port that introduces air to cool the battery module from the passenger compartment is disposed at one transverse end portion below a front end portion of the rear seat, and wherein an outlet port of the passenger compartment-bound exhaust air flow path is disposed at an other transverse end portion below the front end portion of the rear seat. ### Claim 8 (depends on 7) The battery cooling structure for a vehicle according to claim 7, wherein the inlet port and the outlet port are disposed transversely symmetrical with each other with respect to a transverse center line of the vehicle. ### Claim 9 (depends on 7) The battery cooling structure for a vehicle according to claim 7, wherein the outlet port and the inlet port open obliquely forwards and outwards to thereby be directed to corresponding adjacent doors. ### Claim 10 (depends on 7) The battery cooling structure for a vehicle according to claim 7, wherein the side trim includes an opening communicating the space with the luggage compartment to discharge the exhaust air through the opening into the luggage compartment. ### Claim 11 A battery cooling structure for a vehicle comprising: a battery storage space that is defined underneath a luggage compartment provided behind a rear seat and covered by a rear floor; a battery module that is stored in the battery storage space; and a battery cooling unit that cools the battery module using air that is taken in from a passenger compartment and discharges air used to cool the battery module into the battery storage space, wherein the battery cooling structure further comprises: a passenger compartment-bound exhaust air flow path that returns an exhaust air discharged into the battery storage space to the passenger compartment; and a luggage compartment-bound exhaust air flow path that discharges the exhaust air into the luggage compartment, wherein an inlet port that introduces air to cool the battery module from the passenger compartment is disposed at one transverse end portion below a front end portion of the rear seat, and wherein an outlet port of the passenger compartment-bound exhaust air flow path is disposed at an other transverse end portion below the front end portion of the rear seat, wherein the inlet port and the outlet port are disposed transversely symmetrical with each other with respect to a transverse center line of the vehicle.