Title:
冷蔵庫
Document Type and Number:
Japanese Patent JP6910975
Kind Code:
B2
Abstract:
The invention provides a refrigerator. Even if the wall thickness is reduced, the strength of a refrigerator body is not reduced, and heat insulation performance is maintained. The refrigerator is provided with a heat insulation wall provided with a vacuum heat insulation material and a foaming heat insulation material between an outer box and an inner box. The vacuum heat insulation material is provided with glass wool comprising a fiber polymer, an adsorbent for adsorbing a gas, and an outer cover piece for collecting core materials. The occupancy ratio of the vacuum heat insulation materialand the foaming heat insulation material in the heat insulation wall in the heat insulation thickness direction has a region in which the vacuum heat insulation material is larger than the foaming heat insulation material, and the bending stress of the vacuum heat insulation material is set to 0.75 Mpa or more.
Inventors:
Arai Yushi
Echigoya Tsune
Takayuki Kawano
Echigoya Tsune
Takayuki Kawano
Application Number:
JP2018020650A
Publication Date:
July 28, 2021
Filing Date:
February 08, 2018
Export Citation:
Assignee:
Hitachi Global Life Solutions, Inc.
International Classes:
F25D23/06; F16L59/02; F16L59/065
Domestic Patent References:
| JP2014119081A | ||||
| JP6192634B2 | ||||
| JP2004052774A | ||||
| JP2013119878A | ||||
| JP2005220954A | ||||
| JP2003113565A |
Attorney, Agent or Firm:
Polaire Patent Business Corporation