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Patent Searching and Data


Title:
冷蔵庫
Document Type and Number:
Japanese Patent JP7026849
Kind Code:
B2
Abstract:
A refrigerator (1) according to the present invention includes: a refrigeration compartment (4) provided with an internal light (7) that uses a lighting element with an allowable current that changes depending on a temperature; a refrigeration compartment thermistor (5) that detects a temperature inside the refrigeration compartment (4); ROM (112) that stores correspondence information indicating a correspondence between a temperature of the refrigeration compartment (4) and a junction temperature of the lighting element and a power supply rate of the lighting element; a microcomputer (11) that calculates an estimated value of the junction temperature on the basis of a temperature detected by the refrigeration compartment thermistor (5) and an elapsed amount of time from when a current loss amount of the lighting element occurred, determines a power supply rate of the lighting element on the basis of the temperature detected by the refrigeration compartment thermistor (5), the estimated value, and the correspondence information, and controls a current flowing through the lighting element on the basis of the determined power supply rate; and an internal light drive circuit (13).

Inventors:
宮▲崎▼ 雄太
Hideki Mune
Tetsuya Yamada
Keisuke Nagano
Application Number:
JP2021515393A
Publication Date:
February 28, 2022
Filing Date:
April 24, 2019
Export Citation:
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Assignee:
Mitsubishi Electric Corporation
International Classes:
F25D27/00; F25D11/00; F25D29/00
Domestic Patent References:
JP2008275289A
JP2010164250A
JP2012039745A
JP2008232494A
JP2007003021A
JP2006329543A
JP5141862A
Attorney, Agent or Firm:
Takamura Jun