# US 10,483,605 B2 · Battery cooling system for vehicle > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,483,605 B2 - Document ID: US10483605B2 - Status: Granted - Kind: B2 - Application number: 15/826,082 - Filed: 2017-11-29 - Published: 2019-03-28 - Granted: 2019-11-19 - Earliest claimed: 2017-09-28 - Assignees: Hyundai Motor Company; Kia Motors Corporation - Applicants: Hyundai Motor Company; Kia Motors Corporation - Inventors: Man Ju Oh; Sang Shin Lee; So Yoon Park; Jae Woong Kim; So La Chung - Web page: https://patentgrep.com/patent/US10483605B2 ## CPC - H01M 10/6567: Liquids - B60L 58/26: by cooling - H01M 10/613: Cooling or keeping cold - H01M 10/625: Vehicles - H01M 10/6556: Solid parts with flow channel passages or pipes for heat exchange (closed pipes H01M10/6552) - H01M 10/6569: Fluids undergoing a liquid-gas phase change or transition, e.g. evaporation or condensation (heat pipes H01M10/6552) - 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 - H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY - 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 - 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 system for a vehicle includes: a battery module supplying drive energy to a vehicle; a liquid supply unit supplying liquid to the battery module; and an injection unit configured such that a first side of the injection unit is connected to the liquid supply unit to be supplied with liquid from the liquid supply unit and a second side of the injection unit is adjacent to the battery module to supply the liquid supplied from the liquid supply unit to an outer surface of the battery module, thereby cooling the battery module by using latent heat of evaporation of the liquid. ## Claims ### Claim 1 A battery cooling system for a vehicle, comprising: a battery module supplying drive energy to the vehicle; a liquid supply unit supplying liquid to the battery module; and an injection unit configured such that a first side thereof is connected to the liquid supply unit to be supplied with liquid from the liquid supply unit and a second side thereof is adjacent to the battery module to supply the liquid supplied from the liquid supply unit to an outer surface of the battery module, thereby cooling the battery module by using latent heat of evaporation of the liquid, wherein a vehicle body is provided with an induction tube configured to collect liquid outside the vehicle and supply the same to the liquid supply unit, such that the liquid supply unit is constantly filled with liquid to cool the battery module without the liquid being separately supplied to the liquid supply unit. ### Claim 2 (depends on 1) The battery cooling system of claim 1, wherein the battery module is provided with a casing surrounding an outermost portion thereof. ### Claim 3 (depends on 1) The battery cooling system of claim 1, wherein the injection unit includes: a flow tube configured such that a first side thereof is connected to the liquid supply unit and a second side thereof extends from the liquid supply unit to be adjacent to the battery module; and a plurality of injection nozzles provided to be spaced apart from the flow tube at a predetermined interval, wherein the liquid of the liquid supply unit flows along the flow tube and then is injected through the injection nozzles. ### Claim 4 (depends on 3) The battery cooling system of claim 3, wherein the battery module is provided with a seat groove grooved toward the battery module at a location corresponding to the flow tube, such that the flow tube is seated in the seat groove. ### Claim 5 (depends on 1) The battery cooling system of claim 1, wherein the battery module is disposed under a vehicle floor while being spaced apart therefrom, such that a space is provided between the vehicle floor and the battery module with the injection unit disposed in the space, whereby an upper portion of the battery module is cooled. ### Claim 6 (depends on 5) The battery cooling system of claim 5, wherein the space is configured such that a first side thereof is provided with an inlet to allow air to be introduced therethrough from an outside of the vehicle and a second side thereof is provided with an outlet to exhaust the air flowing in the space, and the liquid injected by the injection unit during vehicle travel is evaporated by running wind introduced through the inlet, whereby the battery module is cooled by latent heat of evaporation wherein the running wind is a pressurized air introduced through the inlet from the outside of the vehicle when the vehicle has traveled or is traveling. ### Claim 7 (depends on 6) The battery cooling system of claim 6, wherein the inlet is disposed at a front of the vehicle and the outlet is disposed at a back of the vehicle, wherein the air flows from the inlet to the outlet in the space by the running wind. ### Claim 8 (depends on 6) The battery cooling system of claim 6, wherein the inlet or the outlet is provided with a door opening and closing the inlet or the outlet so as to adjust an amount of the air flowing in the space. ### Claim 9 (depends on 1) The battery cooling system of claim 1, wherein the battery module is disposed to be spaced apart from a vehicle body such that a space is provided between the vehicle body and the battery module, and the injection unit includes a flow tube with the liquid of the liquid supply unit flowing therethrough, wherein the flow tube extends in a longitudinal direction of the vehicle to avoid resistance to a flow of the air passing through the space. ### Claim 10 (depends on 1) The battery cooling system of claim 1, wherein a pump is provided between the liquid supply unit and the injection unit, and when the pump is operated, the liquid of the liquid supply unit flows through the injection unit to cool the battery module. ### Claim 11 (depends on 1) The battery cooling system of claim 1, wherein the liquid supply unit is a reservoir tank disposed at a location higher than the battery module, and the liquid stored in the liquid supply unit is coolant. ### Claim 12 (depends on 1) The battery cooling system of claim 1, wherein the liquid supply unit is disposed at a location higher than the battery module, and the liquid stored in the liquid supply unit is washer fluid. ### Claim 13 (depends on 12) The battery cooling system of claim 12, wherein a multiway valve controlled by a control unit is provided between the liquid supply unit and the injection unit, and the multiway valve is connected with the liquid supply unit, the injection unit, and a washer nozzle, and the control unit controls the multiway valve to be selectively opened and closed, thereby cooling the battery module or cleaning a windshield. ### Claim 14 (depends on 1) The battery cooling system of claim 1, wherein the liquid supply unit is disposed at a location lower than a core of an air conditioning system of the vehicle. ### Claim 15 (depends on 14) The battery cooling system of claim 14, wherein the liquid supply unit is a water box receiving condensate of the core generated when the air conditioning system is operated, from below, to collect the condensate.