# US 2017/0256830 A1 · Thermal management system of battery pack > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2017/0256830 A1 - Document ID: US20170256830A1 - Status: Published application - Kind: A1 - Application number: 15/336,169 - Filed: 2016-10-27 - Published: 2017-09-07 - Earliest claimed: 2016-03-07 - Assignees: Contemporary Amperex Technology Co., Limited - Applicants: Contemporary Amperex Technology Co., Limited - Inventors: Zhijun QIU; Ruobo YOU - Web page: https://patentgrep.com/patent/US20170256830A1 ## CPC - H01M 10/617: for achieving uniformity or desired distribution of temperature - B60K 1/04: of the electric storage means for propulsion - H01M 10/625: Vehicles - H01M 10/6551: Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings - H01M 10/6557: arranged between the cells - B60K 2001/005: {the electric storage means} - B60L 58/26: by cooling - 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 - 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 - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract The present application relates to a thermal management system of a battery pack, which includes a battery pack and a cooling device of the battery pack, the battery pack includes a plurality of single batteries, the cooling device of the battery pack includes cooling fins and uniform temperature plates, the uniform temperature plates are arranged outside the batteries. This application has the following beneficial effect: uniform temperature plates are arranged between single batteries, cooling fin in accordance with the single batteries are arranged on outer surfaces of two sides of the uniform temperature plate, such cooling structure adopts the existing module structure and volume of battery pack, meanwhile improving the heat dissipation effect of the battery pack, and reducing the battery temperature to a lower level than that of the existing wind cooling module, which is cost and time efficient with simple structure and simple procedure. ## Claims ### Claim 1 A thermal management system of a battery pack, comprising a battery pack and a cooling device of the battery pack, the battery pack comprises a plurality of single batteries, characterized in that: the cooling device of the battery pack comprises cooling fins and uniform temperature plates, the uniform temperature plates are arranged between the batteries, the cooling fins are defined outside the batteries. ### Claim 2 (depends on 1) The thermal management system of the battery pack according to claim 1, characterized in that: the cooling fins are arranged on the batteries, and the cooling fins are arranged on surfaces of two sides along thickness direction of the batteries on the uniform temperature plate. ### Claim 3 (depends on 1) The thermal management system of the battery pack according to claim 1, characterized in that: the plurality of single batteries are transversely arranged in parallel arrangement along thickness direction, and the single batteries are arranged separately along the thickness direction, so that a gap existing between the single batteries is obtained to embed the uniform temperature plate therein. ### Claim 4 (depends on 1) The thermal management system of the battery pack according to claim 1, characterized in that: thermal conductive adhesive is provided between the single battery and the uniform temperature plate, and a bonding connection is achieved between the uniform temperature plate and the single battery through the thermal conductive adhesive. ### Claim 5 (depends on 1) The thermal management system of the battery pack according to claim 1, characterized in that: fins are arranged on the cooling fin which extend along thickness direction and are arranged along length direction, the fins are arranged separately, and a gap exists between the adjacent fins. ### Claim 6 (depends on 1) The thermal management system of the battery pack according to claim 1, characterized in that: the cooling fin and the uniform temperature plate cooperate with each other through a manner of welding, bonding or threaded connection. ### Claim 7 (depends on 1) The thermal management system of the battery pack according to claim 1, characterized in that: the uniform temperature plate is a hollow metal plate, an inner wall surface of the metal plate of the uniform temperature plate is capillarity structure, and a supporting structure is provided between the metal plates for structural strengthening. ### Claim 8 (depends on 7) The thermal management system of the battery pack according to claim 7, characterized in that: the capillarity structure is formed by welding or bonding on the inner surface of the metal plate, or machined on the inner surface of the metal plate. ### Claim 9 (depends on 8) The thermal management system of the battery pack according to claim 8, characterized in that: interior of the metal plate of the uniform temperature plate is filled with liquid working medium after being vacuumed. ### Claim 10 (depends on 1) The thermal management system of the battery pack according to claim 1, characterized in that: the battery pack also comprises an end plate arranged outside the single battery along thickness direction of the battery pack, structural adhesive is applied between the end plate and its adjacent single battery, and the end plate cooperate with the single battery through the structural adhesive.