Vacuum insulated structure with sheet metal features to control vacuum bow
US11614271B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 29, 2020 |
| Grant date | Mar 28, 2023 |
| Priority date | — |
| Expiry date | Jun 10, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25D2201/14
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A vacuum insulated structure includes a first cover member of a unitary sheet member defining a perimeter portion, an outer frame portion defined radially inward of the perimeter portion, and an inner area surrounded and supported by the outer frame portion. The inner area defines a first planar level with a portion of the outer frame portion extending to a second planar level parallel to and spaced apart from the first planar level in an axial direction. The vacuum insulated structure further includes a second cover member of a unitary sheet and a thermal bridge interconnecting the first cover member and the second cover member at the perimeter portions thereof to define an insulating cavity therebetween. The outer frame portion deforms such that the inner area moves axially inward away from the second planar level under a force of the vacuum within the insulating cavity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.