# US 8,785,027 B2 · Battery pack having cooling system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,785,027 B2 - Document ID: US8785027B2 - Status: Granted - Kind: B2 - Application number: 13/253,280 - Filed: 2011-10-05 - Published: 2013-04-11 - Granted: 2014-07-22 - Earliest claimed: 2011-10-05 - Assignees: Go-Tech Energy Co., Ltd. - Applicants: Tzu Wen Soong; Hsun Hao Chieh - Inventors: Tzu Wen Soong; Hsun Hao Chieh - Web page: https://patentgrep.com/patent/US8785027B2 ## CPC - H01M 10/613: Cooling or keeping cold - B60L 50/64: Constructional details of batteries specially adapted for electric vehicles - B60L 58/21: having the same nominal voltage - B60L 58/26: by cooling - H01M 10/6555: arranged between the cells - H01M 10/6557: arranged between the cells - H01M 10/6567: Liquids - H01M 50/213: adapted for cells having curved cross-section, e.g. round or elliptic (H01M50/209, H01M50/216 take precedence) - H01M 50/244: Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method - H01M 50/262: with fastening means, e.g. locks - H01M 50/264: for cells or batteries, e.g. straps, tie rods or peripheral frames - H01M 10/643: Cylindrical cells - 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 pack having a cooling system is disclosed. The battery pack includes battery units linked in series or in parallel and arranged in a plane; thermal conducting bars each has a number of side walls and two ends, averagely located among the battery units and substantially contacted to the battery units by the side walls, for conducting heat out of the battery units to the two ends; and a housing for containing the battery units and thermal conducting bars and conducting heat from the ends of the thermal conducting bars to outside of the housing. At least one end of the thermal conducting bar is connected to the housing and becomes an internal supporting structure of the housing. ## Claims ### Claim 1 A battery pack having a cooling system, comprising: a plurality of battery units linked in series or in parallel and arranged in a plane for providing power; a plurality of thermal conducting bars each has at least four lateral faces and two ends, averagely located among the battery units and substantially contacted to the battery units by the lateral faces, for conducting heat out of the battery units to the two ends; and a housing for containing the battery units and thermal conducting bars and conducting heat from the ends of the thermal conducting bars to outside of the housing; wherein each lateral face has a same area and shape; and wherein at least one end of the thermal conducting bar is connected to the housing and becomes an internal supporting structure of the housing. ### Claim 2 (depends on 1) The battery pack according to claim 1, further comprising a fixture for fixing the battery units and thermal conducting bars on the plane. ### Claim 3 (depends on 1) The battery pack according to claim 1, wherein the thermal conducting bars comprises a fixture for fixing the battery units on the plane. ### Claim 4 (depends on 1) The battery pack according to claim 1, wherein the battery unit is a rechargeable battery. ### Claim 5 (depends on 1) The battery pack according to claim 1, wherein the thermal conducting bar is made of a thermal conductive material. ### Claim 6 (depends on 5) The battery pack according to claim 5, wherein the thermal conductive material is a metal or alloy. ### Claim 7 (depends on 6) The battery pack according to claim 6, wherein the metal is aluminum. ### Claim 8 (depends on 1) The battery pack according to claim 1, wherein the thermal conducting bar is hollow. ### Claim 9 (depends on 8) The battery pack according to claim 8, further comprising a circulating system providing cooling liquid passing through the hollow portion of the thermal conducting bar from one end to the other for speeding up heat conduction. ### Claim 10 (depends on 9) The battery pack according to claim 9, wherein the cooling liquid is water, ethanol, glycol or oil. ### Claim 11 (depends on 1) The battery pack according to claim 1, wherein the number of lateral faces equals the number of battery units surrounding the thermal conducting bar. ### Claim 12 (depends on 1) The battery pack according to claim 1, wherein the thermal conducting bar is fixed to the housing by screws and heat of the thermal conducting bar can be conducted to outside of the housing via the screws or by contact with the housing. ### Claim 13 (depends on 1) The battery pack according to claim 1, wherein the housing is made of a thermal conductive material. ### Claim 14 (depends on 13) The battery pack according to claim 13, wherein the thermal conductive material is aluminum. ### Claim 15 (depends on 2) The battery pack according to claim 2, wherein the fixture is made of an insulator. ### Claim 16 (depends on 15) The battery pack according to claim 15, wherein the insulator is plastic. ### Claim 17 (depends on 3) The battery pack according to claim 3, wherein the fixture is made of thermal conductive material.