Washing drying machine having heat pump and drying operation control method thereof
US10584440B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 11, 2017 |
| Grant date | Mar 10, 2020 |
| Priority date | — |
| Expiry date | Jan 3, 2038 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06F2105/62
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
Provided are a washing drying machine having a heat pump, and a drying operation control method thereof. The washing drying machine having a heat pump includes a cabinet; a tub provided in the cabinet; a drum rotatably provided in the tub; a circulation passage configured to connect a first portion of the tub to a second portion of the tub; a circulation fan provided at the circulation passage and configured to circulate air through the circulation passage and the tub; the heat pump having a compressor that compresses a refrigerant and a heat exchanger that exchanges heat with the air of the circulation passage and the refrigerant; a heater configured to heat an inside of the tub; and a controller configured to control the heater to be supplied with power in order to heat the inside of the tub before the compressor is operated during a drying course.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.