[특허]Attachment arrangement for vacuum insulated door

Whirlpool Corporation

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특허 상세정보

MyON담기

내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Attachment arrangement for vacuum insulated door

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F25D-023/02
출원번호	US-0290723 (2016-10-11)
등록번호	US-10161669 (2018-12-25)
발명자 / 주소	Naik, Abhay Deka, Lakshya Allard, Paul B. Visin, Jerry M.
출원인 / 주소	Whirlpool Corporation
대리인 / 주소	Price Heneveld LLP
인용정보	피인용 횟수 : 0 인용 특허 : 236

초록

A refrigerator includes an insulated cabinet structure and a cooling system. A door assembly includes a perimeter structure that is movably mounted to the insulated cabinet structure and an outer door that is movably mounted to the perimeter structure whereby the outer door can be moved between open and closed positions relative to the perimeter structure when the perimeter structure is in its closed position The outer door may comprise a vacuum insulated structure including porous core material disposed in a cavity of the outer door.

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1. A refrigerator, comprising: an insulated cabinet structure defining a refrigerated interior space having an access opening that permits user access to the refrigerated interior space;a cooling system that is configured to cool the refrigerated interior space;a door assembly that selectively closes off at least a portion of the access opening, wherein the door assembly includes an inner liner and an outer wrapper that are spaced apart and sealingly interconnected to form a vacuum insulated door structure having an airtight cavity formed by the inner liner and the outer wrapper, and having porous filler material disposed in the airtight cavity, and wherein the airtight cavity defines a vacuum tending to collapse the inner liner and the outer wrapper, and wherein the porous filler material supports the inner liner and the outer wrapper to prevent collapse thereof, the door assembly further including at least one projection that is secured to the outer wrapper without penetrating the airtight cavity formed by the inner liner and the outer wrapper such that gas cannot enter the airtight cavity, the door assembly further including a handle secured to the at least one projection, wherein the outer wrapper of the door comprises metal; at least a portion of the projection is metal; the projection is welded to the outer wrapper such that the projection and the outer wrapper are joined by a continuous metal region. 2. The refrigerator of claim 1, wherein: the projection extends outwardly away from the outer wrapper of the door, and includes an enlarged end portion. 3. The refrigerator of claim 2, wherein: the projection defines an axis that is transverse to the outerwrapper, a tapered surface portion that extends away from the axis to form the enlarged end portion. 4. The refrigerator of claim 3, wherein: the tapered surface portion is substantially conical in shape. 5. The refrigerator of claim 1, including: a threaded member that threadably engages the handle, the threaded member engaging the projection to secure the handle to the projection. 6. The refrigerator of claim 5, wherein: the projection comprises a tapered outer surface;an end of the threaded member engages the tapered outer surface. 7. The refrigerator of claim 6, wherein: the threaded member generates a force tending to move the handle towards the outer layer due to the engagement of the end of the threaded member and the tapered outer surface. 8. The refrigerator of claim 6, wherein: the tapered outer surface is substantially conical. 9. The refrigerator of claim 1, wherein: the door assembly includes a perimeter structure that is movably mounted to the insulated cabinet structure for movement between open and closed positions, the perimeter structure defining an outer perimeter and a door opening through a central portion of the perimeter structure to provide access to the refrigerated interior space when the perimeter structure is in a closed position;and wherein the inner liner and the outer wrapper of the door assembly form a vacuum insulated outer door structure having an airtight cavity formed by the inner liner and the outer wrapper, wherein the vacuum insulated outer door structure is movably mounted to the perimeter structure whereby the outer door can be moved between open and closed positions relative to the perimeter structure when the perimeter structure is in its closed position to selectively close off at least a portion of the door opening. 10. The refrigerator of claim 9, wherein: the door assembly further includes at least one shelf supported by the perimeter structure, and wherein the shelf is disposed in the door opening. 11. The refrigerator of claim 10, wherein: the perimeter structure is generally ring-shaped. 12. The refrigerator of claim 11, wherein: the perimeter structure includes an outer wrapper and an inner liner that is secured to the outer wrapper to define a ring-shaped cavity extending around the perimeter structure between the outer perimeter of the structure and the door opening, and wherein the ring-shaped cavity is filled with foam insulation. 13. The refrigerator of claim 9, wherein: the outer wrapper of the outer door comprises sheet metal, and the inner liner of the outer door comprises a polymer liner having a perimeter that is secured to a perimeter of the sheet metal of the outer wrapper. 14. The refrigerator door of claim 9, wherein: the vacuum insulated outer door includes an upwardly-facing upper opening and a downwardly-facing lower opening, and wherein:the refrigerator includes pins that are rotatably received in the upper and lower openings to pivotably connect the vacuum insulated outer door to the perimeter structure. 15. A refrigerator, comprising: an insulated cabinet structure defining a refrigerated interior space having an access opening that permits user access to the refrigerated interior space;a door assembly that selectively closes off at least a portion of the access opening;wherein the door assembly includes a perimeter structure that is movably mounted to the insulated cabinet structure for movement between open and closed positions, the perimeter structure defining a first outer perimeter and a door opening through a central portion of the perimeter structure, wherein the door opening is significantly smaller than the access opening;wherein the door assembly further includes a vacuum insulated outer door that is movably mounted to the perimeter structure whereby the outer door can be moved between open and closed positions relative to the perimeter structure when the perimeter structure is in its closed position to selectively close off at least a portion of the door opening, wherein the vacuum insulated outer door defines a second perimeter that is significantly smaller than the first perimeter, wherein the vacuum insulated outer door includes an inner liner and a metal outer wrapper that are sealingly interconnected to form a vacuum insulated outer door structure having a sealed vacuum cavity between the inner liner and outer wrapper, the vacuum insulated outer door structure including porous filler material disposed in the sealed vacuum cavity formed by the inner liner and the outer wrapper, the outer wrapper having an outer surface and a pair of vertically spaced apart upper and lower metal projections welded to the outer surface of the outer wrapper without penetrating the airtight cavity such that gas cannot enter the airtight cavity, the metal projections extending transversely outwardly from the outer surface, and a handle having upper and lower ends secured to the upper and lower metal projections, respectively. 16. A refrigerator, comprising: an insulated cabinet structure defining a refrigerated interior space having an access opening that permits user access to the refrigerated interior space;a door assembly that selectively closes off at least a portion of the access opening;wherein the door assembly includes a perimeter structure that is movably mounted to the insulated cabinet structure for movement between open and closed positions, the perimeter structure defining a first outer perimeter and a door opening through a central portion of the perimeter structure, wherein the door opening is significantly smaller than the access opening;wherein the door assembly further includes a vacuum insulated outer door that is movably mounted to the perimeter structure whereby the outer door can be moved between open and closed positions relative to the perimeter structure when the perimeter structure is in its closed position to selectively close off at least a portion of the door opening, wherein the vacuum insulated outer door defines a second perimeter that is significantly smaller than the first perimeter, wherein the vacuum insulated outer door includes inner and outer layers and a sealed vacuum cavity between the inner and outer layers, the outer layer having an outer surface and a pair of vertically spaced apart upper and lower projections extending transversely outwardly from the outer surface, and a handle having upper and lower ends secured to the upper and lower projections, respectively;wherein the vacuum insulated outer door includes an outer layer having a pair of openings and an insert having at least an inner portion thereof disposed on an inner side of the outer layer adjacent each opening;wherein the projections are connected to the inserts to form a seal that prevents gas from entering the vacuum cavity; and including:resilient seals disposed between the inner portions of the inserts and the inner side of the outer layer of the vacuum insulated outer door;and wherein the inserts include threaded bosses extending through the openings in the vacuum insulated outer door and threadably engaging the projections.

이 특허에 인용된 특허 (236)

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특허 상세정보

Attachment arrangement for vacuum insulated door

초록

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이 특허에 인용된 특허 (236)

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특허 상세정보

Attachment arrangement for vacuum insulated door

초록

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이 특허에 인용된 특허 (236)

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