Title:
HEAT INSULATION DOOR AND REFRIGERANT
Document Type and Number:
Japanese Patent JP2023111620
Kind Code:
A
Abstract:
To provide a heat insulation door which can reduce the circulation of air in a space which houses a vacuum heat insulation material.SOLUTION: A heat insulation door 10 includes: a vacuum heat insulation material 20 having a first major surface 21 intersecting with a first direction, a second major surface 22 intersecting with the first direction, and a side surface 23 connecting the first major surface with the second major surface; and a housing 18 having a housing space 18a for housing the vacuum heat insulation material. The housing has: a frame 41 having a frame plate 42 facing the side surface and a first opening 43 and a second opening 44 which are opened toward the first direction; an outer plate 32 which covers the first opening and faces the first major surface; an inner plate 50 which covers the second opening and faces the second major surface; and a circulation reduction part which reduces the circulation of air in the housing space. The circulation reduction part includes a margin plate 32 which extends from at least a part of an outer peripheral edge of the outer plate along the first direction and overlaps with the frame plate in a second direction intersecting with the first direction.SELECTED DRAWING: Figure 5
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Inventors:
ISHITA MITOKO
WATANABE MARIKO
KAKIUCHI SHOTA
OKAWA MASAFUMI
KOJIMA YASURO
WATANABE MARIKO
KAKIUCHI SHOTA
OKAWA MASAFUMI
KOJIMA YASURO
Application Number:
JP2022013551A
Publication Date:
August 10, 2023
Filing Date:
January 31, 2022
Export Citation:
Assignee:
PANASONIC IP MAN CORP
International Classes:
F25D23/02
Attorney, Agent or Firm:
Ariko Patent Office