Air conditioner and control method therefor
US10663184B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 4, 2015 |
| Grant date | May 26, 2020 |
| Priority date | — |
| Expiry date | Apr 11, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24F2110/64
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An air conditioner including a first filter; a second filter located downstream of the first filter; a dust amount sensor located upstream of the first filter and having a hole through which dust passes, the dust amount sensor configured to transmit, per unit of time, each of a first total, which is an amount of dust in a first size range, and a second total, which is an amount of dust in a second size range smaller than the first size range, of the dust passing through the hole; and a controller configured to output a service signal for the first filter if the accumulated value of the first total transmitted from the dust amount sensor exceeds a first set value, and output a service signal for the second filter if the accumulated value of the second total transmitted from the dust amount sensor exceeds a second set value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.