US 2014/0109322 A1 · LAUNDRY TREATING APPARATUS INDICATING ENERGY EFFICIENCY AND METHOD FOR INDICATING ENERGY EFFICIENCY THEREOF

Abstract

A laundry treating apparatus may include a drum that receives laundry item therein, a heat pump that circulates a heating medium, a compressor that compresses the heating medium, a condenser that heats air to be transmitted to the drum, an expander that expands the heating medium, and an evaporator that cools air transmitted from the drum. A heater may re-heat air heated by the heat pump, and a sensing device may sense a state, such as temperature, of the heating medium. A controller may calculate energy efficiency based on the sensed state of the heating medium. Energy related information including the calculated energy efficiency may be displayed on a display so that energy efficiency may be monitored real time.

Claims17

Dependent claims

A laundry treating apparatus, comprising:

a drum configured to receive laundry items therein;
a heat pump configured to circulate a heating medium, the heat pump including a compressor configured to compress the heating medium, a condenser configured to heat air to be transmitted to the drum, an expander configured to expand the heating medium, and an evaporator configured to cool air transmitted from the drum;
a heater configured to re-heat air heated by the heat pump;
a sensing device configured to sense at least one state value of the heating medium;
a controller configured to calculate energy efficiency based on the at least one state value of the heating medium;
and
a display configured to display energy related information and the calculated energy efficiency.

4 more elements

A method of operating a laundry treating apparatus, the method comprising:

performing a sensing operation, comprising sensing at least one state value of a heating medium circulating in a heat pump;
performing an energy efficiency calculating operation, comprising calculating energy efficiency of the heat pump;
and
performing an output operation, comprising displaying energy related information including the calculated energy efficiency of the heat pump,
wherein the energy efficiency calculating operation comprises:
calculating an amount of thermal energy absorbed by the heating medium in an evaporator of the heat pump based on the at least one value state of the heating medium;
and
calculating an amount of thermal energy supplied by the heating medium in a condenser of the heat pump based on the at least one state value of the heating medium.

5 more elements

Dependencies are inferred from the claim text.

Laundry treating apparatus indicating energy efficiency and method for indicating energy efficiency thereof

Life of this patent

Laundry treating apparatus indicating energy efficiency and method for indicating energy efficiency thereof

Life of this patent

Abstract

Claims17