System and method for distributed thermoelectric heating and cooling
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F25B-021/02
F25B-021/04
B60H-001/00
출원번호
US-0126423
(2008-05-23)
등록번호
US-9310112
(2016-04-12)
발명자
/ 주소
Bell, Lon E.
LaGrandeur, John
출원인 / 주소
Gentherm Incorporated
대리인 / 주소
Knobbe, Martens, Olson & Bear, LLP
인용정보
피인용 횟수 :
7인용 특허 :
255
초록▼
A thermoelectric system and method provides distributed localized heating, cooling, or both heating and cooling. The thermoelectric system includes a plurality of thermoelectric assemblies. Each thermoelectric assembly comprises a plurality of thermoelectric elements, and each thermoelectric assembl
A thermoelectric system and method provides distributed localized heating, cooling, or both heating and cooling. The thermoelectric system includes a plurality of thermoelectric assemblies. Each thermoelectric assembly comprises a plurality of thermoelectric elements, and each thermoelectric assembly is in thermal communication with a first working fluid and in thermal communication with a region corresponding to the thermoelectric assembly. Each thermoelectric assembly is selectively operable either to heat the region corresponding to the thermoelectric assembly by transferring heat from the first working fluid to the region corresponding to the thermoelectric assembly or to cool the region corresponding to the thermoelectric assembly by transferring heat from the region corresponding to the thermoelectric assembly to the first working fluid. Each thermoelectric assembly is operable independently from operation of other thermoelectric assemblies of the plurality of thermoelectric assemblies.
대표청구항▼
1. A thermoelectric system for distributed localized heating, cooling, or both heating and cooling, the thermoelectric system comprising: at least one fluid conduit configured to allow a first working fluid to flow therein; anda plurality of thermoelectric assemblies, each thermoelectric assembly co
1. A thermoelectric system for distributed localized heating, cooling, or both heating and cooling, the thermoelectric system comprising: at least one fluid conduit configured to allow a first working fluid to flow therein; anda plurality of thermoelectric assemblies, each thermoelectric assembly comprising a plurality of thermoelectric elements, each thermoelectric assembly comprising a first side and a second side and configured to transfer thermal energy between the first side and the second side, each thermoelectric assembly selectively in thermal communication with the first working fluid via the first side by a fluid flow controller corresponding to the thermoelectric assembly configured to either direct or stop flow of the first working fluid through the thermoelectric assembly relative to the first side, and each thermoelectric assembly in thermal communication with a region corresponding to the thermoelectric assembly via the second side,wherein each thermoelectric assembly is selectively operable either to heat the region corresponding to the thermoelectric assembly by the thermoelectric assembly transferring heat from the first working fluid via the first side to the region corresponding to the thermoelectric assembly via the second side or to cool the region corresponding to the thermoelectric assembly by the thermoelectric assembly transferring heat from the region corresponding to the thermoelectric assembly via the second side to the first working fluid via the first side,wherein each thermoelectric assembly is operable independently from operation of other thermoelectric assemblies of the plurality of thermoelectric assemblies,wherein the at least one fluid conduit comprises a plurality of fluid conduits, each thermoelectric assembly in fluid communication with a fluid conduit corresponding to the thermoelectric assembly, each fluid conduit in fluid communication with a fluid loop, the fluid loop configured to allow the first working fluid to flow therein, each fluid conduit comprising an inlet side and an outlet side, the inlet side configured to direct at least a portion of the first working fluid from the fluid loop toward the thermoelectric assembly to flow through the thermoelectric assembly, the outlet side configured to direct the at least a portion of the first working fluid away from the thermoelectric assembly into the fluid loop,wherein the at least a portion of the first working fluid flows out of the fluid loop into an inlet side of a first fluid conduit corresponding to a first thermoelectric assembly of the plurality of thermoelectric assemblies, through the first thermoelectric assembly while an other portion of the first working fluid flows through the fluid loop in parallel with the at least a portion of the first working fluid flowing through the first thermoelectric assembly, and through an outlet side of the first fluid conduit back into the fluid loop when the thermoelectric system is operating,wherein, after flowing through the outlet side of the first fluid conduit back into the fluid loop, at least a part of the portion of the first working fluid sequentially flows out of the fluid loop into an inlet side of a second fluid conduit corresponding to a second thermoelectric assembly of the plurality of thermoelectric assemblies, through the second thermoelectric assembly while at least a part of the other portion of the first working fluid flows through the fluid loop in parallel with the at least a part of the portion of the first working fluid flowing through the second thermoelectric assembly, and through an outlet side of the second fluid conduit back into the fluid loop when the thermoelectric system is operating, andwherein the inlet of the second fluid conduit connects to the fluid loop directly downstream of the outlet of the first fluid conduit connecting to the fluid loop such that the first fluid conduit is in series fluid communication with the second fluid conduit while the fluid loop is in parallel fluid communication with the first and second fluid conduits. 2. The thermoelectric system of claim 1, wherein at least a part of the first working fluid flows through the at least one fluid conduit such that the at least a part of the first working fluid is sequentially in thermal communication with two or more thermoelectric assemblies of the plurality of thermoelectric assemblies via the fluid flow controller corresponding to the thermoelectric assembly directing flow of the at least a part of the first working fluid through the thermoelectric assembly relative to the first side when the thermoelectric system is operating. 3. The thermoelectric system of claim 2, wherein the at least a part of the first working fluid is heated by at least one of the thermoelectric assemblies and is cooled by at least one other of the thermoelectric assemblies when the thermoelectric system is operating. 4. The thermoelectric system of claim 2, wherein the first working fluid flows repeatedly through the at least one fluid conduit when the thermoelectric system is operating. 5. The thermoelectric system of claim 1, wherein at least a part of the first working fluid flows through the at least one fluid conduit such that the at least a part of the first working fluid is not in thermal communication with two or more thermoelectric assemblies of the plurality of thermoelectric assemblies via the fluid flow controller corresponding to the thermoelectric assembly stopping flow of the at least a part of the first working fluid through the thermoelectric assembly relative to the first side when the thermoelectric system is operating. 6. The thermoelectric system of claim 1, wherein the second side is in thermal communication with a second working fluid. 7. The thermoelectric system of claim 6, wherein the second working fluid is the same as the first working fluid. 8. The thermoelectric system of claim 6, wherein the second working fluid is different from the first working fluid. 9. The thermoelectric system of claim 6, wherein at least one of the first working fluid and the second working fluid is a liquid. 10. The thermoelectric system of claim 6, wherein the first working fluid is water and the second working fluid is air. 11. The thermoelectric system of claim 6, wherein the first side is in thermal communication with a first heat exchanger selectively in thermal communication with the first working fluid via the fluid flow controller corresponding to the thermoelectric assembly being configured to either direct or stop flow of the first working fluid through the first heat exchanger relative to the first side, and wherein the second side is in thermal communication with a second heat exchanger in thermal communication with the second working fluid. 12. The thermoelectric system of claim 6, wherein the second working fluid flows from the region corresponding to the thermoelectric assembly to a volume to be cooled or heated when the thermoelectric system is operating. 13. The thermoelectric system of claim 12, wherein the second working fluid comprises a gas and the thermoelectric system further comprises one or more fans configured to drive the second working fluid from the region corresponding to the thermoelectric assembly to the volume. 14. The thermoelectric system of claim 11, wherein each thermoelectric assembly comprises a plurality of N-type thermoelectric elements and a plurality of P-type thermoelectric elements, each thermoelectric assembly further comprising a plurality of electrically conductive and thermally conductive connectors, each connector in electrical communication and thermal communication with at least one of the plurality of N-type thermoelectric elements and with at least one of the plurality of P-type thermoelectric elements and in thermal communication with the first heat exchanger or the second heat exchanger. 15. The thermoelectric system of claim 14, wherein each connector has a first portion and a second portion, the first portion in thermal communication with the first heat exchanger or the second heat exchanger, the second portion sandwiched between at least one of the plurality of N-type thermoelectric elements and at least one of the plurality of P-type thermoelectric elements. 16. The thermoelectric system of claim 15, wherein at least one of the first heat exchanger and the second heat exchanger comprises a plurality of fins. 17. The thermoelectric system of claim 1, wherein the fluid flow controller corresponding to the thermoelectric assembly comprises a valve which is adjustable to control flow of the first working fluid in the at least one fluid conduit. 18. The thermoelectric system of claim 1, further comprising a thermal storage reservoir fluidically coupled to the at least one fluid conduit, the thermal storage reservoir configured to receive the first working fluid. 19. The thermoelectric system of claim 1, further comprising an intermediate heat exchanger in thermal communication with the first working fluid. 20. The system of claim 1, wherein the fluid flow controller is positioned on the inlet side of each fluid conduit. 21. The system of claim 1, wherein the outlet side of a first fluid conduit corresponding to the first thermoelectric assembly of the plurality of thermoelectric assemblies is connected to the inlet side of a second fluid conduit corresponding to the second thermoelectric assembly of the plurality of thermoelectric assemblies via a continuous wall of the fluid loop. 22. The system of claim 21, wherein the fluid flow controller is positioned on the inlet side of each fluid conduit. 23. The system of claim 1, wherein two or more regions each corresponding to at least one thermoelectric assembly are not thermally isolated from each other. 24. The system of claim 23, wherein the two or more regions are positioned within a passenger compartment of a vehicle. 25. The system of claim 1, wherein two or more regions each corresponding to at least one thermoelectric assembly are positioned within a same inner volume without walls forming partitions within the same inner volume to thermally isolate the two or more regions from each other within the same inner volume. 26. The system of claim 25, wherein the two or more regions are positioned within a passenger compartment of a vehicle. 27. A method for heating, cooling, or both heating and cooling localized portions of a vehicle, the method comprising: providing a thermoelectric system comprising at least one fluid conduit configured to allow a first working fluid to flow therein and a plurality of thermoelectric assemblies, each thermoelectric assembly comprising a plurality of thermoelectric elements, each thermoelectric assembly comprises a first side and a second side and configured to transfer thermal energy between the first side and the second side, each thermoelectric assembly selectively in thermal communication with the first working fluid via the first side by a fluid flow controller corresponding to the thermoelectric assembly configured to either direct or stop flow of the first working fluid through the thermoelectric assembly relative to the first side, and each thermoelectric assembly in thermal communication with a region of the vehicle corresponding to the thermoelectric assembly;preconditioning at least one region of the vehicle by operating at least one thermoelectric assembly of the thermoelectric system,wherein each thermoelectric assembly is selectively operable either to heat the region corresponding to the thermoelectric assembly by the thermoelectric assembly transferring heat from the first working fluid via the first side to the region corresponding to the thermoelectric assembly via the second side or to cool the region corresponding to the thermoelectric assembly by the thermoelectric assembly transferring heat from the region corresponding to the thermoelectric assembly via the second side to the first working fluid via the first side,wherein each thermoelectric assembly is operable independently from operation of other thermoelectric assemblies of the plurality of thermoelectric assemblies,wherein the at least one fluid conduit comprises a plurality of fluid conduits, each thermoelectric assembly in fluid communication with a fluid conduit corresponding to the thermoelectric assembly, each fluid conduit in fluid communication with a fluid loop, the fluid loop configured to allow the first working fluid to flow therein each fluid conduit comprising an inlet side and an outlet side, the inlet side configured to direct at least a portion of the first working fluid from the fluid loop toward the thermoelectric assembly to flow through the thermoelectric assembly, the outlet side configured to direct the at least a portion of the first working fluid away from the thermoelectric assembly into the fluid loop;directing the at least a portion of the first working fluid from the fluid loop into an inlet side of a first fluid conduit corresponding to a first thermoelectric assembly of the plurality of thermoelectric assemblies, through the first thermoelectric assembly while an other portion of the first working fluid flows through the fluid loop in parallel with the at least a portion of the first working fluid flowing through the first thermoelectric assembly, and through an outlet side of the first fluid conduit into the fluid loop; andsequentially directing at least a part of the portion of the first working fluid from the fluid loop into an inlet side of a second fluid conduit corresponding to a second thermoelectric assembly of the plurality of thermoelectric assemblies, through the second thermoelectric assembly while at least a part of the other portion of the first working fluid flows through the fluid loop in parallel with the at least a part of the portion of the first working fluid flowing through the second thermoelectric assembly, and through an outlet side of the second fluid conduit into the fluid loop,wherein the inlet of the second fluid conduit connects to the fluid loop directly downstream of the outlet of the first fluid conduit connecting to the fluid loop such that the first fluid conduit is in series fluid communication with the second fluid conduit while the fluid loop is in parallel fluid communication with the first and second fluid conduits. 28. The method of claim 27, wherein preconditioning the at least one region comprises cooling or heating at least a portion of a passenger compartment of the vehicle prior to a person entering the passenger compartment of the vehicle. 29. The method of claim 27, wherein preconditioning the at least one region comprises cooling at least a portion of a passenger compartment of the vehicle below a condensation temperature so as to remove water vapor from the passenger compartment. 30. The method of claim 27, wherein preconditioning the at least one region comprises preconditioning a battery of the vehicle. 31. The method of claim 27, wherein preconditioning the at least one region comprises preconditioning a catalytic converter of the vehicle. 32. The method of claim 27, wherein the fluid flow controller is positioned on the inlet side of each fluid conduit. 33. The method of claim 27, wherein two or more regions each corresponding to one or more thermoelectric assemblies of the plurality of thermoelectric assemblies are not thermally isolated from each other. 34. The method of claim 33, wherein the two or more regions are positioned within a passenger compartment of the vehicle. 35. The method of claim 27, wherein two or more regions each corresponding to one or more thermoelectric assemblies of the plurality of thermoelectric assemblies are positioned within a same inner volume without walls forming partitions within the same inner volume to thermally isolate the two or more regions from each other within the same inner volume. 36. The method of claim 35, wherein the two or more regions are positioned within a passenger compartment of the vehicle. 37. A thermoelectric system for heating, cooling, or both heating and cooling regions, the thermoelectric system comprising: a fluid circuit configured to circulate a working fluid in the fluid circuit;a first thermoelectric device comprising a first side and a second side, the first thermoelectric device configured to transfer thermal energy between the first and second sides of the first thermoelectric device, the second side of the first thermoelectric device in thermal communication with a first region;a first flow controller in fluid communication with the fluid circuit, the first flow controller configured to selectively place the first side of the first thermoelectric device in thermal communication with the working fluid by the first flow controller either directing or stopping flow of the working fluid to the thermoelectric device relative to the first side of the first thermoelectric device;a second thermoelectric device comprising a first side and a second side, the second thermoelectric device operable independently of the first thermoelectric device, the second thermoelectric device configured to transfer thermal energy between the first and second sides of the second thermoelectric device, the second side of the second thermoelectric device in thermal communication with a second region;a second flow controller in fluid communication with the fluid circuit, the second flow controller configured to selectively place the first side of the second thermoelectric device in thermal communication with the working fluid by the second flow controller either directing or stopping flow of the working fluid to the thermoelectric device relative to the first side of the second thermoelectric device;a first fluid conduit configured to convey the working fluid in the first fluid conduit, the first fluid conduit in fluid communication with the fluid circuit and in thermal communication with the first side of first thermoelectric device to provide the thermal communication between the working fluid and the first side of the first thermoelectric device, the first fluid conduit comprising an inlet side and an outlet side, the inlet side of the first fluid conduit configured to direct the working fluid from the fluid circuit to the first thermoelectric device, the outlet side of the first fluid conduit configured to direct the working fluid away from the first thermoelectric device into the fluid circuit; anda second fluid conduit configured to convey the working fluid in the second fluid conduit, the second fluid conduit in fluid communication with the fluid circuit and in thermal communication with the first side of the second thermoelectric device to provide the thermal communication between the working fluid and the first side of the second thermoelectric device, the second fluid conduit comprising an inlet side and an outlet side, the inlet side of the second fluid conduit configured to direct the working fluid from the fluid circuit to the second thermoelectric device, the outlet side of the second fluid conduit configured to direct the working fluid away from the second thermoelectric device into the fluid circuit,wherein the first thermoelectric device is configured to heat the first region by the first thermoelectric device transferring thermal energy from the working fluid via the first side of the first thermoelectric device to the first region via the second side of the first thermoelectric device,wherein the first thermoelectric device is configured to cool the first region by first the thermoelectric device transferring thermal energy from the first region via the second side of the first thermoelectric device to the working fluid via the first side of the first thermoelectric device,wherein the second thermoelectric device is configured to heat the second region by the second thermoelectric device transferring thermal energy from the working fluid via the first side of the second thermoelectric device to the second region via the second side of the second thermoelectric device, andwherein the second thermoelectric device is configured to cool the second region by second the thermoelectric device transferring thermal energy from the second region via the second side of the second thermoelectric device to the working fluid via the first side of the second thermoelectric device,wherein at least a portion of the working fluid flows out of the fluid circuit into the inlet side of the first fluid conduit, to the first thermoelectric device while an other portion of the working fluid flows through the fluid circuit in parallel with the at least a portion of the working fluid flowing through the first fluid conduit, and through the outlet side of the first fluid conduit into the fluid circuit when the thermoelectric system is operating,wherein, after flowing through the outlet side of the first fluid conduit back into the fluid circuit, at least a part of the portion of the working fluid flows out of the fluid circuit into the inlet side of the second fluid conduit, to the second thermoelectric device while at least a part of the other portion of the working fluid flows through the fluid circuit in parallel with the at least a part of the portion of the working fluid flowing through the second fluid conduit, and through the outlet side of the second fluid conduit into the fluid circuit when the thermoelectric system is operating, andwherein the inlet of the second fluid conduit connects to the fluid circuit directly downstream of the outlet of the first fluid conduit connecting to the fluid circuit such that the first fluid conduit is in series fluid communication with the second fluid conduit while the fluid circuit is in parallel fluid communication with the first and second fluid conduits. 38. The system of claim 37, wherein the first fluid conduit includes the first flow controller. 39. The system of claim 38, wherein the first flow controller is positioned on the inlet side of the first fluid conduit. 40. The system of claim 37, wherein the second fluid conduit includes the second flow controller. 41. The system of claim 40, wherein the second flow controller is positioned on the inlet side of the second fluid conduit. 42. The system of claim 37, wherein the outlet side of the first fluid conduit is connected to the inlet side of the second fluid conduit via a continuous wall of the fluid circuit. 43. The system of claim 37, wherein the first and second regions each are positioned within a same inner volume without walls forming partitions within the same inner volume to thermally isolate the first and second regions from each other within the same inner volume. 44. The system of claim 42, wherein the continuous wall of the fluid circuit does not have other inlet or outlet sides of fluid conduits between the outlet side of the first fluid conduit and the inlet side of the second fluid conduit.
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