Power train battery assembly of an electric, fuel-cell or hybrid vehicle
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H01M-010/613
H01M-002/10
H01M-006/46
H01M-010/625
H01M-010/6557
H01M-010/6567
H01M-010/6555
H01M-010/643
F28D-015/00
F28F-001/22
출원번호
US-0115948
(2008-05-06)
등록번호
US-9502700
(2016-11-22)
우선권정보
DE-10 2007 021 309 (2007-05-07)
발명자
/ 주소
Haussman, Roland
출원인 / 주소
VALEO KLIMASYSTEME GmbH
대리인 / 주소
Howard & Howard Attorneys PLLC
인용정보
피인용 횟수 :
0인용 특허 :
6
초록▼
A power train battery assembly of an electric, fuel-cell or hybrid vehicle, said assembly having a plurality of battery cells (16), each encased in an individual and externally-closed cell housing (18), that are combined into a cell stack and moreover having at least one pipe (36) conducting cooling
A power train battery assembly of an electric, fuel-cell or hybrid vehicle, said assembly having a plurality of battery cells (16), each encased in an individual and externally-closed cell housing (18), that are combined into a cell stack and moreover having at least one pipe (36) conducting cooling fluid for the removal of heat energy from the battery cells (16). At least one heat-conducting fin (42) that originates from the pipe (36) flatly abuts, at least in sections, at least one cell housing (18).
대표청구항▼
1. A power train battery assembly of an electric, fuel-cell or hybrid vehicle, said assembly having: an outer housing (10);a plurality of cell housings (18) disposed in the outer housing (10);a plurality of battery cells (16), one of the battery cells (16) being disposed in one of the cell housings
1. A power train battery assembly of an electric, fuel-cell or hybrid vehicle, said assembly having: an outer housing (10);a plurality of cell housings (18) disposed in the outer housing (10);a plurality of battery cells (16), one of the battery cells (16) being disposed in one of the cell housings (18), that are combined into a cell stack;at least one pipe (36) extending through the outer housing (10) and having an inner wall defining a hollow interior for conducting cooling fluid to remove heat energy from the battery cells (16) and an outer wall opposite the inner wall of the at least one pipe (36) defining at least one laterally reduced cross section (51) abutting at least one of the cell housings (18);at least one heat-conducting fin (42) fastened to the outer wall of the pipe (36) and spaced from the cooling fluid with the at least one heat-conducting fin (42) having at least one section flatly abutting at least one of the cell housings (18);wherein the outer housing (10) includes a plurality of positioning projections (20) and the battery cells (16) are positioned in the outer housing (10) by the positioning projections (20) such that the battery cells (16) are positioned above the positioning projections (20); andwherein the cell housings (18) are circularly cylindrical and the at least one pipe (36) extends at least partially into envelopes of adjacent battery cells (16), with the at least one laterally reduced cross section (51) being positioned outside the envelopes. 2. The power train battery assembly according to claim 1, wherein the at least one heat-conducting fin (42) pushes against the cell housing (18). 3. The power train battery assembly according to claim 1, wherein the at least one heat-conducting fin (42) hugs the cell housing (18) on an outer diameter of the cell housing (18) by means of a press fit. 4. The power train battery assembly as claimed in claim 1, wherein the at least one heat-conducting fin (42) encloses the at least one pipe (36) in sections. 5. The power train battery assembly as claimed in claim 1, wherein the at least one heat-conducting fin (42) is affixed directly to the at least one pipe (36) by means of adhesive bonding, welding, soldering or a mechanical fastening means. 6. The power train battery assembly as claimed claim 1, wherein the at least one heat-conducting fin (42) encompasses the at least one pipe (36) at least partially by forming a press fit in order to be fastened to the at least one pipe (36). 7. The power train battery assembly as claimed in claim 1, wherein the battery cells (16) have a longitudinal axis and, the at least one heat-conducting fin (42), from the direction of the longitudinal axis (A), abuts more than 90° of the circumference of the cell housing (18). 8. The power train battery assembly as claimed in claim 1, wherein at least 40% of the outer circumference of the cell housing (18) should be in contact with the at least one heat-conducting fin (42). 9. The power train battery assembly as claimed in claim 1, wherein the battery cells (16) are clamped between a plurality of heat-conducting fins (42) that engage opposed sections of the outer circumference of the cell housing (18). 10. The power train battery assembly as claimed in claim 1, wherein the cell housings (18) are cylindrical, and the heat-conducting fins (42) extend along the battery cells (16) of differing rows in a concertina arrangement. 11. The power train battery assembly as claimed in claim 1, wherein the fin sections of neighboring battery cells (16) do not come into contact with each other. 12. The power train battery assembly as claimed in claim 1, wherein the battery cells (16) are each encased in the cell housings (18), which is externally-closed as well as having the at least one pipe (36) which conducts cooling fluid. 13. The power train battery assembly according to claim 1, wherein beyond the at least one laterally reduced cross section (51) thereof, the at least one pipe (36) has a circularly cylindrical cross section. 14. The power train battery assembly according to claim 1, wherein the at least one pipe (36) has at least one section (38, 40) that runs alongside the longitudinal axis (A) of the battery cells (16) and that runs transversely to the longitudinal axis (A) of the battery cells (16), and also in that the transversely-running section (40) has the at least one laterally reduced cross section (51) abutting the cell housing (18). 15. The power train battery assembly as claimed in claim 1, wherein the area of the at least one pipe (36) to which the battery cells (16) are attached extends on the outer edge of the cell stack. 16. The power train battery assembly as claimed in claim 1, wherein the at least one pipe (36) extends alternately upwards and downwards in the longitudinal axis (A) of the battery cells (16). 17. The power train battery assembly as claimed in claim 1, wherein the at least one heat-conducting fin (42) is provided with an electrical insulation (70) at least in the area of contact with the cell housing (18). 18. The power train battery assembly according to claim 17, wherein the insulation (70) is created by coating the at least one heat-conducting fin (42). 19. The power train battery assembly according to claim 17, wherein the at least one heat-conducting fin (42) in the area of contact with the at least one pipe (36) is designed without insulation. 20. The power train battery assembly as claimed in claim 17, wherein the insulation (70) is applied by rolling or lining. 21. The power train battery assembly as claimed in claim 17, wherein prefabricated cell housings (18) are designed without external insulation (70) and the at least one heat-conducting fin (42) electrically insulate adjacent battery cells (16) from each other. 22. A power train battery assembly of an electric, fuel-cell or hybrid vehicle, said assembly having: an outer housing (10);a plurality of cell housings (18) disposed in the outer housing (10);a plurality of battery cells (16), one of the battery cells (16) being disposed in one of the cell housings (18), that are combined into a cell stack;at least one pipe (36) extending through the outer housing (10) and having an inner wall defining a hollow interior for conducting cooling fluid to remove heat energy from the battery cells (16) and an outer wall opposite the inner wall of the at least one pipe (36) defining at least one laterally reduced cross section (51) abutting at least one of the cell housings (18);at least one heat-conducting fin (42) fastened to the outer wall of the at least one pipe (36) and spaced from the cooling fluid with the heat-conducting fin (42) having at least one section flatly abutting at least one of the cell housings (18);wherein the outer housing (10) includes a plurality of positioning projections (20) and the battery cells (16) are positioned in the outer housing (10) by the positioning projections (20) such that the battery cells (16) are positioned above the positioning projections (20);wherein the exteriors of battery cells (16) are in contact with the associated fins (42) to varying degrees; andwherein a contact surface between the fins (42) and the battery cells (16) arranged closer to the at least one pipe (36) is smaller than a contact surface between the fins (42) and the battery cells (16) arranged at a greater distance from the at least one pipe (36). 23. A power train battery assembly of an electric, fuel-cell or hybrid vehicle, said assembly having: an outer housing (10);a plurality of cell housings (18) disposed in the outer housing (10);a plurality of battery cells (16), one of the battery cells (16) being disposed in one of the cell housings (18), that are combined into a cell stack;at least one pipe (36) extending through the outer housing (10) and having an inner wall defining a hollow interior for conducting cooling fluid to remove heat energy from the battery cells (16) and an outer wall opposite the inner wall of the at least one pipe (36) defining at least one laterally reduced cross section (51) abutting at least one of the cell housings (18);at least one heat-conducting fin (42) fastened to the outer wall of the at least one pipe (36) and spaced from the cooling fluid with the heat-conducting fin (42) having at least one section flatly abutting at least one of the cell housings (18);wherein the outer housing (10) includes a plurality of positioning projections (20) and the battery cells (16) are positioned in the outer housing (10) by the positioning projections (20) such that the battery cells (16) are positioned above the positioning projections (20);wherein the exteriors of battery cells (16) are in contact with the associated fins (42) to varying degrees; andwherein the fin (42) in the area of the cell housing (18) has at least one recess (58) or depression (60) in order to decrease the contact surface. 24. A power train battery assembly of an electric, fuel-cell or hybrid vehicle, said assembly having: an outer housing (10);a plurality of cell housings (18) disposed in the outer housing (10);a plurality of battery cells (16), one of said battery cells (16) being disposed in one of said cell housings (18), that are combined into a cell stack (16);at least one pipe (36) extending through the outer housing (10) and having an inner wall defining a hollow interior for conducting a zeotropic coolant to remove heat energy from the battery cells (16) and an outer wall opposite the inner wall of the at least one pipe (36) defining at least one laterally reduced cross section (51) abutting at least one of the cell housings (18);wherein the at least one pipe (36) is positioned within the assembly and designed so that the coolant therein undergoes a decrease in pressure in such a manner that the saturation temperature of the coolant in the pipe substantially remains constant;wherein the outer housing (10) includes a plurality of positioning projections (20) having sections of different elasticity and the battery cells (16) are positioned in the outer housing (10) by the positioning projections (20) such that the battery cells (16) are positioned above the positioning projections (20)); andwherein the cell housings (18) are circularly cylindrical and the at least one pipe (36) extends at least partially into envelopes of adjacent battery cells (16), with the at least one laterally reduced cross section (51) being positioned outside the envelopes. 25. The power train battery assembly according to claim 24, wherein the decrease in pressure is between 0.25 to 0.75 bar. 26. The power train battery assembly according to claim 24, wherein the decrease in pressure is achieved by narrowing the pipe cross-section in the downstream direction.
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이 특허에 인용된 특허 (6)
Waters John Eugene (Fishers IN) Borme Andrew (Carmel IN) Conner Cynthia Lee (Pendleton IN), Battery pack.
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