[특허]Food chiller with optimized air flow

Delta T, LLC

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특허 상세정보

MyON담기

내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Food chiller with optimized air flow

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F25B-021/02
미국특허분류(USC)	062/003.6; 062/003.2; 062/457.9; 062/407
출원번호	US-0192229 (2002-07-10)
발명자 / 주소	Clark, George A. Thompson, Mark S.
출원인 / 주소	Delta T, LLC
대리인 / 주소	Andrus, Sceales, Starke & Sawall
인용정보	피인용 횟수 : 11 인용 특허 : 28

초록

A food chiller including an enclosed container supported on a base receives a flow of cooling air from a Peltier effect thermoelectric module in the base through cool air inlet openings into the container. Air is returned from the container to the base by a fan mounted in the air duct system in communication with the cold sink of the thermoelectric device. In each of the disclosed embodiments, duct length is minimized and air flow into the container is optimized by air hole placement and orientation.

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1. A food chiller comprising:a supporting base including a housing having an upper base wall;a Peltier effect thermoelectric device disposed in the housing between a cold sink and a hot sink;an enclosed container positioned adjacent to the housing and having a lower container wall positioned adjacent to and in contact with the upper base wall of the supporting base, the lower container wall and upper base wall having openings for inflow and outflow of air to and from the container;a duct system for distributing the inflow and outflow of air, said duct system enclosing the cold sink and including at least one of an air inlet space and an air outlet space providing flow communication through said openings between said cold sink and said container;a fan mounted in said duct system to generate said inflow and outflow of air; and,the openings in the upper base wall and lower container wall oriented to provide a maximum time of air residence within the container. 2. The apparatus as set forth in claim 1 wherein said duct system defines a flow path having an overall length less than the length of the adjacent interface between the housing and the container. 3. The apparatus as set forth in claim 1 wherein the air outflow openings are oriented to direct the air flow into the container in a direction away from the air inflow openings. 4. The apparatus as set forth in claim 1 including a central tower extending into the container and forming a portion of the duct system, said tower having a fixed base end connected to the remainder of the duct system and a free opposite end. 5. The apparatus as set forth in claim 4 wherein said air inflow openings are located in the free end of the tower, said air outflow openings located in a lower wall of the container and oriented to direct air radially toward the outer periphery of the container. 6. The apparatus as set forth in claim 5 wherein said outflow openings are positioned directly adjacent the base end of the tower. 7. The apparatus as set forth in claim 4 wherein said air outflow openings are located in the free end of the tower, said inflow openings located in a lower wall of the container and oriented to direct air radially toward the outer periphery of the container. 8. The apparatus as set forth in claim 7 wherein said inflow openings are positioned directly adjacent the base end of the tower. 9. The apparatus as set forth in claim 1 comprising a conduit connecting the duct system to ambient outside air. 10. A food chiller as set forth in claim 1 and further comprising:a housing base baffle plate forming a lower wall of said duct system; and,said lower container wall including at least one of said air inflow and air outflow openings. 11. The apparatus as set forth in claim 10 wherein said one opening in said lower container wall are disposed near the radial outer periphery thereof. 12. The apparatus as set forth in claim 11 wherein the other of said openings are disposed in the center of the lower container wall. 13. The apparatus as set forth in claim 11 wherein the fan includes a fan housing mounted in the center of said baffle plate, and the other of said openings are disposed in said fan housing. 14. The apparatus as set forth in claim 10 wherein said lower container wall includes said air inflow and said air outflow openings. 15. The apparatus as set forth in claim 10 wherein said air outflow openings are oriented to induce a swirl pattern in the air flow within the container. 16. The apparatus as set forth in claim 10 wherein the air outflow openings are oriented to direct the air flow into the container in a direction away from the air inflow openings. 17. The apparatus as set forth in claim 10 comprising a conduit connecting the duct system to ambient outside air. 18. The apparatus as set forth in claim 1 including control means for said thermoelectric device for controlling the air flow temperature. 19. The apparatus as set forth in claim 18 wherein said control means compris es means for reversing the polarity of the current supplied to the thermoelectric device. 20. The apparatus as set forth in claim 18 wherein said control means comprises means for controlling the magnitude of current and voltage supplied to the thermoelectric device. 21. A food chiller comprising:a supporting base including a housing;a Peltier effect thermoelectric device disposed in the housing between a cold sink and a hot sink;an enclosed food container positioned adjacent to the housing and having openings for an inflow of air and an outflow of air;a duct system for distributing the inflow and outflow of air, said duct system enclosing the cold sink and including at least one of an air inlet space and an air outlet space providing flow communication through said openings between said cold sink and said food container and including portions of at least one of a housing wall and a container wall;a fan mounted in said duct system to generate said inflow and outflow of air; and,the openings in the container oriented to provide a maximum time of air residence within the container;wherein the air outflow openings are oriented to induce a swirl pattern in the air flow within the container. 22. A food chiller comprising:a supporting base including a housing;a Peltier effect thermoelectric device disposed in the housing between a cold sink and a hot sink;an enclosed food container positioned adjacent to the housing and having openings for an inflow of air and an outflow of air;a duct system for distributing the inflow and outflow of air, said duct system enclosing the cold sink and including at least one of an air inlet space and an air outlet space providing flow communication through said openings between said cold sink and said food container and including portions of at least one of a housing wall and a container wall;a fan mounted in said duct system to generate said inflow and outflow of air; and,the openings in the container oriented to provide a maximum time of air residence within the container;a generally circular upper base wall enclosing the base;a generally circular lower container wall adapted to be supported on the upper base wall; andthe air inflow openings including aligned patterns of openings in said upper base wall and lower container wall providing maximum air flow in an aligned position;wherein said container is rotatable on and relative to said upper base wall to reduce the air flow from the maximum. 23. A food chiller comprising:a supporting base including a housing;a Peltier effect thermoelectric device disposed in the housing between a cold sink and a hot sink;an enclosed food container positioned adjacent to the housing and having openings for an inflow of air and an outflow of air;a duct system for distributing the inflow and outflow of air, said duct system enclosing the cold sink and including at least one of an air inlet space and an air outlet space providing flow communication through said openings between said cold sink and said food container and including portions of at least one of a housing wall and a container wall;a fan mounted in said duct system to generate said inflow and outflow of air;the openings in the container oriented to provide a maximum time of air residence within the container;a conduit connecting the duct system to ambient outside air; anda valve in said conduit to control the flow of ambient outside air. 24. A food chiller comprising:a supporting base including a housing;a Peltier effect thermoelectric device disposed in the housing between a cold sink and a hot sink;an enclosed food container positioned adjacent to the housing and having openings for an inflow of air and an outflow of air;a duct system for distributing the inflow and outflow of air, said duct system enclosing the cold sink and including at least one of an air inlet space and an air outlet space providing flow communication through said openings between said cold sink and said food container and including port ions of at least one of a housing wall and a container wall;a fan mounted in said duct system to generate said inflow and outflow of air;the openings in the container oriented to provide a maximum time of air residence within the container; andan exhaust vent from the interior of the container. 25. The apparatus as set forth in claim 24 wherein said vent comprises an adjustable slot in the container or the cover.

이 특허에 인용된 특허 (28)

이 특허를 인용한 특허 피인용횟수: 11

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Food chiller with optimized air flow

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Food chiller with optimized air flow

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이 특허에 인용된 특허 (28)

이 특허를 인용한 특허 피인용횟수: 11

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