Refrigerator
US9243834B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2012 |
| Grant date | Jan 26, 2016 |
| Priority date | — |
| Expiry date | May 15, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25D2700/10
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
Provided is a refrigerator, which includes a main body, a door, an evaporator, a defrosting heater, a defrosting sensor, and a control part. The main body includes a food storage space and an evaporation compartment. The door selectively closes the food storage space. The evaporator is disposed in the evaporation compartment. The defrosting heater is disposed at a side of the evaporator to remove frost from an outer surface of the evaporation compartment or the evaporator. The defrosting sensor is disposed at a side of the evaporation compartment or the evaporator to sense a frost formation amount. The control part receives a sensed value transmitted from the defrosting sensor, and controls an operation of the defrosting heater according to the sensed value. A sensing period of the defrosting sensor is varied according to a frost formation amount sensed by the defrosting sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.