Heater-cooler with bithermal thermoelectric device
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F25B-021/02
B60H-001/00
B60H-003/00
출원번호
US-0605249
(2009-10-23)
등록번호
US-8613200
(2013-12-24)
발명자
/ 주소
LaGrandeur, John
Bell, Lon E.
출원인 / 주소
BSST LLC
대리인 / 주소
Knobbe, Martens, Olsen & Bear, LLP
인용정보
피인용 횟수 :
16인용 특허 :
217
초록▼
Disclosed embodiments include systems for heating and cooling the interior climate of a vehicle. In some embodiments, the system comprises a conduit having a first fluid channel, a second fluid channel, a fluid diversion channel configured to divert fluid flow between the first and second channels,
Disclosed embodiments include systems for heating and cooling the interior climate of a vehicle. In some embodiments, the system comprises a conduit having a first fluid channel, a second fluid channel, a fluid diversion channel configured to divert fluid flow between the first and second channels, and a thermoelectric device operatively connected to the fluid conduit. In certain embodiments, the thermoelectric device comprises a plurality of thermal zones. In some embodiments, the plurality of thermal zones comprises a first thermal zone connected to a first electric circuit switchable between a first polarity and a second polarity and a second thermal zone connected to a second electric circuit switchable between the first polarity and the second polarity independent of the polarity of the first electric circuit.
대표청구항▼
1. A system for controlling temperature in a region, the system comprising: at least one main fluid channel;at least one thermoelectric device operatively connected to the at least one main fluid channel, the at least one thermoelectric device comprising at least one thermoelectric element configure
1. A system for controlling temperature in a region, the system comprising: at least one main fluid channel;at least one thermoelectric device operatively connected to the at least one main fluid channel, the at least one thermoelectric device comprising at least one thermoelectric element configured to heat at least a portion of a fluid flowing in at least one of the main fluid channels upon application of electrical energy in a first polarity and to cool at least a portion of the fluid upon application of electrical energy in a second polarity;a first working fluid circuit;a second working fluid circuit independently configurable from the first working fluid circuit;wherein the at least one thermoelectric device is subdivided into a plurality of thermal zones, the plurality of thermal zones comprising: a first thermal zone operatively connected to a first electric circuit switchable between the first polarity and the second polarity; anda second thermal zone operatively connected to a second electric circuit switchable between the first polarity and the second polarity independent of the polarity of the first electric circuit;at least a first heat exchanger disposed in the main fluid channel and thermally connected to a first main surface in the first thermal zone of the thermoelectric device;at least a second heat exchanger disposed in the main fluid channel and thermally connected to a second main surface in the second thermal zone of the thermoelectric device;at least a third heat exchanger disposed in the first working fluid circuit and thermally connected to a first waste surface; andat least a fourth heat exchanger disposed in the second working fluid circuit and thermally connected to a second waste surface;wherein the first working fluid circuit is thermally connected to the first waste surface in the first thermal zone of the thermoelectric device and the second working fluid circuit is thermally connected to the second waste surface in the second thermal zone of the thermoelectric device, wherein the system is configured to deliver a fluid flow that is heated, cooled, or demisted to the region, and wherein the first working fluid circuit is independently configurable from the second working fluid circuit when the system is demisting the fluid flow; andwherein the thermoelectric device is configured to transfer thermal energy between the first main surface and the first waste surface in the first thermal zone and to transfer thermal energy between the second main surface and the second waste surface in the second thermal zone. 2. The system of claim 1, further comprising a controller configured to operate the system in one of a plurality of available modes by controlling the polarity of the first electric circuit and the polarity of the second electric circuit. 3. The system of claim 2, wherein the plurality of available modes comprises a demisting mode, a heating mode, and a cooling mode. 4. The system of claim 3, wherein the controller is configured to operate the first electric circuit in the second polarity and the second electric circuit in the first polarity when the system is operating in the demisting mode. 5. The system of claim 1, wherein each of the first working fluid circuit and the second working fluid circuit is selectively connected between either the thermoelectric device and a heat sink or the thermoelectric device and a heat source. 6. The system of claim 1, wherein the first working fluid circuit is connected to a heat source when the first electric circuit is switched to the first polarity and is connected to a heat sink when the first electric circuit is switched to the second polarity; and wherein the second working fluid circuit is connected to the heat source when the second electric circuit is switched to the first polarity and is connected to the heat sink when the second electric circuit is switched to the second polarity. 7. The system of claim 1, further comprising a controller configured to operate the system in a demisting mode by switching the first electric circuit to the second polarity and switching the second electric circuit to the first polarity. 8. A method of delivering temperature controlled fluid to a region using an HVAC system, the method comprising: operating the system in one of a plurality of available modes to provide a fluid flow to the region, the plurality of available modes comprising a demisting mode, a heating mode, and a cooling mode;delivering fluid to the region during the demisting mode of operation by: directing a fluid flow into a main fluid channel of a thermoelectric device;removing thermal energy from at least a portion of the fluid flow in a first thermal zone of the thermoelectric device by circulating a first working fluid in a first working fluid circuit; andsubsequently adding thermal energy to at least the portion of the fluid flow in a second thermal zone of the thermoelectric device by circulating a second working fluid in a second working fluid circuit independently configurable from the first working fluid circuit;wherein the first working fluid circuit connects the thermoelectric device to a heat sink and the second working fluid circuit connects the thermoelectric device to a heat source when the HVAC system is demisting the fluid flow in the main fluid channel;delivering fluid to the region during the heating mode of operation by: directing a fluid flow into the main fluid channel of the thermoelectric device; andadding thermal energy to at least a portion of the fluid flow in at least one of the first thermal zone and the second thermal zone of the thermoelectric device; anddelivering fluid to the region during the cooling mode of operation by: directing a fluid flow into the main fluid channel of the thermoelectric device; andremoving thermal energy from at least a portion of the fluid flow in at least one of the first thermal zone and the second thermal zone of the thermoelectric device. 9. The method of claim 8, wherein the first working fluid is connected to a heat sink and the second working fluid is connected to a heat source when the system is operating in the demisting mode. 10. The method of claim 8, wherein each of the first working fluid and the second working fluid comprises a liquid heat transfer fluid. 11. The method of claim 10, wherein the first working fluid comprises an aqueous solution and the second working fluid comprises the same aqueous solution. 12. The method of claim 8, wherein delivering the fluid during the heating mode further comprises: providing electrical energy having a first polarity to the first thermal zone of the thermoelectric device; andproviding electrical energy having the same polarity to the second thermal zone of the thermoelectric device;wherein the electrical energy provided to the thermoelectric device causes thermal energy to be transferred from at least one working fluid to the at least a portion of the fluid flow via the thermoelectric device. 13. A method of manufacturing a system for conditioning fluid in a region, the method comprising: providing at least one fluid flow channel;operatively connecting at least one thermoelectric device to the at least one fluid flow channel comprising: disposing at least one first heat exchanger in the at least one fluid flow channel;disposing at least one second heat exchanger in the at least one fluid flow channel;providing a first working fluid channel in thermal communication with a first waste surface of the at least one thermoelectric device;providing a second working fluid channel independently configurable from the first working fluid channel and in thermal communication with a second waste surface of the at least one thermoelectric device;connecting a first electric circuit to a first thermal zone of the at least one thermoelectric device, the first electric circuit configured to selectively supply electrical power to the first thermal zone in a first polarity or in a second polarity; andconnecting a second electric circuit to a second thermal zone of the at least one thermoelectric device, the second electric circuit configured to selectively supply electrical power to the second thermal zone in the first polarity or in the second polarity;wherein operatively connecting the at least one thermoelectric device to the at least one fluid flow channel further comprising: connecting the first thermal zone of the at least one thermoelectric device to the at least one first heat exchanger comprising connecting a main surface in the first thermal zone to the at least one first heat exchanger, the main surface being opposite a waste surface in the first thermal zone; andconnecting the second thermal zone of the at least one thermoelectric device to the at least one second heat exchanger;wherein the system is configured to deliver fluid that is heated, cooled, or demisted to the region, and wherein the first working fluid channel is independently configurable from the second working fluid channel when the system is demisting the fluid. 14. The method of claim 13, further comprising providing a controller configured to control the system at least in part by selecting the polarity of the first electric circuit and the polarity of the second electric circuit. 15. The method of claim 13, further comprising configuring each of the first working fluid channel and the second working fluid channel to selectively move thermal energy between the at least one thermoelectric device and a heat source or a heat sink. 16. The method of claim 13, wherein the region comprises a passenger compartment of a vehicle. 17. The system of claim 1, wherein the first working fluid circuit connects the thermoelectric device to a heat sink and the second working fluid circuit connects the thermoelectric device to a heat source when the system is demisting the fluid flow. 18. The system of claim 17, wherein the heat sink is a radiator and the heat source is power train coolant. 19. The system of claim 1, wherein the first working fluid circuit is physically independent from the second working fluid circuit when the system is heating or cooling the fluid flow. 20. The system of claims 1, wherein the first working fluid circuit and the second working fluid circuit connect the thermoelectric device to a same heat source when the system is heating the fluid flow. 21. The system of claim 1, wherein the at least one thermoelectric device is substantially contiguous between the first thermal zone and the second thermal zone. 22. The system of claim 1, wherein the first waste surface and the second waste surface are substantially contiguous. 23. The system of claim 1, wherein the first main surface of the first thermal zone and the second main surface of the second thermal zone of the at least one thermoelectric device control a temperature of the same fluid flow. 24. The system of claim 3, wherein the controller is configured to thermally connect: in the demisting mode, the first fluid circuit to a heat sink and the second fluid circuit to a heat source;in the heating mode, the first fluid circuit to the heat source and the second fluid circuit to the heat source;in the cooling mode, the first fluid circuit to the heat sink and the second fluid circuit to the heat sink.
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