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Patent Searching and Data


Title:
DUCT DEVICE FOR REFRIGERATOR AND THE LIKE
Document Type and Number:
Japanese Patent JPH04174272
Kind Code:
A
Abstract:

PURPOSE: To make thin heat insulating material in a duct and widen a space in a refrigerator by a method wherein a heat insulating space is provided between a cover member, forming the surface of a cold air duct, and the heat insulating material.

CONSTITUTION: A cold air duct 7, introducing cold air in a cooler chamber 5 into the upper part of a refrigerating chamber, is provided with heat insulating material 11 on the surface of the inner box 2 side of a tubular body formed of the inner box 2 and a duct cover 10 and a heat insulating space 12 between the inner box 2 and the heat insulating material 11. The inner box 2 is made of plastics having the thickness of about 1mm. When the heat insulating material 11 is made of foamed styrol having the thickness of about 4mm and the thickness of the heat insulating space is about 4mm, an adiabatic effect, equivalent to the same so far, can be obtained. According to this method, the thickness of the heat insulating material can be thinned and a space in a refrigerator can be widened by an amount corresponding to the thinned thickness of the heat insulating material.


Inventors:
KURIHARA YASUO
KASHIWABUCHI MASAAKI
SASAMURA KAZUFUMI
Application Number:
JP29729690A
Publication Date:
June 22, 1992
Filing Date:
November 05, 1990
Export Citation:
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Assignee:
HITACHI LTD
International Classes:
F25D17/08; F25D23/06; (IPC1-7): F25D17/08; F25D23/06
Attorney, Agent or Firm:
Katsuo Ogawa (1 person outside)